oota-llvm.git
15 years agoCellSPU:
Scott Michel [Mon, 16 Mar 2009 18:47:25 +0000 (18:47 +0000)]
CellSPU:
Incorporate Tilmann's 128-bit operation patch. Evidently, it gets the
llvm-gcc bootstrap a bit further along.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67048 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agochange this to test for an alias result more directly.
Chris Lattner [Mon, 16 Mar 2009 18:28:27 +0000 (18:28 +0000)]
change this to test for an alias result more directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67046 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd TGSourceMgr.cpp to CMake build, sort lines
Douglas Gregor [Mon, 16 Mar 2009 17:04:14 +0000 (17:04 +0000)]
Add TGSourceMgr.cpp to CMake build, sort lines

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67042 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoThis causes incorrect stack frame allocation when the last object is an array allocat...
Bruno Cardoso Lopes [Sun, 15 Mar 2009 23:28:07 +0000 (23:28 +0000)]
This causes incorrect stack frame allocation when the last object is an array allocated on the stack which would lead
the compiled program to run over its stack. Thanks to Gil Dogon

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67034 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoSimplify. "Broken" is always true here.
Nick Lewycky [Sun, 15 Mar 2009 06:40:32 +0000 (06:40 +0000)]
Simplify. "Broken" is always true here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67025 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRemove obviously redundant call.
Nick Lewycky [Sun, 15 Mar 2009 06:39:52 +0000 (06:39 +0000)]
Remove obviously redundant call.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67023 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoGive the pre-alloc splitter access to the VirtRegMap. It doesn't do anything
Owen Anderson [Sat, 14 Mar 2009 21:40:05 +0000 (21:40 +0000)]
Give the pre-alloc splitter access to the VirtRegMap.  It doesn't do anything
useful with it at the moment, but it will in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67012 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd a replacement for 2009-02-12-GEPNoalias.ll that works without -debug.
Nick Lewycky [Sat, 14 Mar 2009 19:40:09 +0000 (19:40 +0000)]
Add a replacement for 2009-02-12-GEPNoalias.ll that works without -debug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67011 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoApply a patch by Micah Villmow to fix AsmParser to accept vector
Dan Gohman [Sat, 14 Mar 2009 17:09:17 +0000 (17:09 +0000)]
Apply a patch by Micah Villmow to fix AsmParser to accept vector
shift constant expressions, and add support for folding vector
shift constant expressions. This fixes PR3802.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67010 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix Clang build for srcdir != objdir
Sebastian Redl [Sat, 14 Mar 2009 14:42:51 +0000 (14:42 +0000)]
Fix Clang build for srcdir != objdir

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67008 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd support for generating Clang diagnostic defs to Makefile.rules.
Sebastian Redl [Sat, 14 Mar 2009 11:59:18 +0000 (11:59 +0000)]
Add support for generating Clang diagnostic defs to Makefile.rules.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67006 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd TableGen syntax highlighting for the jEdit editor.
Sebastian Redl [Sat, 14 Mar 2009 10:15:32 +0000 (10:15 +0000)]
Add TableGen syntax highlighting for the jEdit editor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67005 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd a testcase that covers a wide variety of ABI isel cases.
Dan Gohman [Sat, 14 Mar 2009 02:35:10 +0000 (02:35 +0000)]
Add a testcase that covers a wide variety of ABI isel cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67003 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoUse %rip-relative addressing on x86-64 whenever practical, as
Dan Gohman [Sat, 14 Mar 2009 02:33:41 +0000 (02:33 +0000)]
Use %rip-relative addressing on x86-64 whenever practical, as
it has a smaller encoding than absolute addressing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67002 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoDon't forego folding of loads into 64-bit adds when the other
Dan Gohman [Sat, 14 Mar 2009 02:07:16 +0000 (02:07 +0000)]
Don't forego folding of loads into 64-bit adds when the other
operand is a signed 32-bit immediate. Unlike with the 8-bit
signed immediate case, it isn't actually smaller to fold a
32-bit signed immediate instead of a load. In fact, it's
larger in the case of 32-bit unsigned immediates, because
they can be materialized with movl instead of movq.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67001 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd newlines at end of file (this can annoy gcov)
Daniel Dunbar [Sat, 14 Mar 2009 01:53:05 +0000 (01:53 +0000)]
Add newlines at end of file (this can annoy gcov)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67000 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAvoid doing the transformation c ? 1.0 : 2.0 as load { 2.0, 1.0 } + c*4
Mon P Wang [Sat, 14 Mar 2009 00:25:19 +0000 (00:25 +0000)]
Avoid doing the transformation c ? 1.0 : 2.0 as load { 2.0, 1.0 } + c*4
if FPConstant is legal because if the FPConstant doesn't need to be stored
in a constant pool, the transformation is unlikely to be profitable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66994 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd a few more ptrtoint/inttoptr cast tests.
Dan Gohman [Fri, 13 Mar 2009 23:54:51 +0000 (23:54 +0000)]
Add a few more ptrtoint/inttoptr cast tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66989 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoImprove FastISel's handling of truncates to i1, and implement
Dan Gohman [Fri, 13 Mar 2009 23:53:06 +0000 (23:53 +0000)]
Improve FastISel's handling of truncates to i1, and implement
ptrtoint and inttoptr in X86FastISel. These casts aren't always
handled in the generic FastISel code because X86 sometimes needs
custom code to do truncation and zero-extension.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66988 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix -strip-debug-declare to work when there are
Dale Johannesen [Fri, 13 Mar 2009 22:59:47 +0000 (22:59 +0000)]
Fix -strip-debug-declare to work when there are
llvm.global.variable's but no llvm.declare's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66977 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix PR3784: If the source of a phi comes from a bb ended with an invoke, make sure...
Evan Cheng [Fri, 13 Mar 2009 22:59:14 +0000 (22:59 +0000)]
Fix PR3784: If the source of a phi comes from a bb ended with an invoke, make sure the copy is inserted before the try range (unless it's used as an input to the invoke, then insert it after the last use), not at the end of the bb.

Also re-apply r66140 which was disabled as a workaround.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66976 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd (hidden) TableGen command option '-clang-component' which specifies the
Ted Kremenek [Fri, 13 Mar 2009 22:53:41 +0000 (22:53 +0000)]
Add (hidden) TableGen command option '-clang-component' which specifies the
component's warnings to process for '-gen-clang-diags-defs'.

Also, when the component is specified, generate a '#if' prologue at the top of
the generated .def file (to match the current files).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66975 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd initial implementation of a TableGen backend for converting Clang-warnings
Ted Kremenek [Fri, 13 Mar 2009 22:21:17 +0000 (22:21 +0000)]
Add initial implementation of a TableGen backend for converting Clang-warnings
tablegen files to the original .def preprocessor include files. This is my first
TableGen backend; I don't claim that it is awesome.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66971 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFurther constify Record::isSubClassOf.
Ted Kremenek [Fri, 13 Mar 2009 22:20:10 +0000 (22:20 +0000)]
Further constify Record::isSubClassOf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66970 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix test case. Now, llvm-gcc emits debug info for artificiaal variable _comp_ctor.
Devang Patel [Fri, 13 Mar 2009 21:57:16 +0000 (21:57 +0000)]
Fix test case. Now, llvm-gcc emits debug info for artificiaal variable _comp_ctor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66963 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix a hashing bug in APInt. A certain pathological testcase (too
Stuart Hastings [Fri, 13 Mar 2009 21:51:13 +0000 (21:51 +0000)]
Fix a hashing bug in APInt.  A certain pathological testcase (too
large for the testsuite) took over six minutes to compile on my Mac.
The patched LLVM-GCC compiles that testcase in three seconds (GCC
takes less than one second).  This hash function is more complex
(about 35 instructions on x86) than what Chris wanted, but I expect it
will be well-behaved with arbitrary inputs.

Thank you to everyone who responded to my previous request for advice.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66962 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix escaping in asm string literals correctly by having tblgen unescape
Chris Lattner [Fri, 13 Mar 2009 21:33:17 +0000 (21:33 +0000)]
Fix escaping in asm string literals correctly by having tblgen unescape
them, then the asmprinter emitter reescape them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66958 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd a horrible hack to fix the build.
Chris Lattner [Fri, 13 Mar 2009 21:23:43 +0000 (21:23 +0000)]
add a horrible hack to fix the build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66957 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRevert r66920. It was causing failures in the self-hosting buildbot (in release
Bill Wendling [Fri, 13 Mar 2009 21:15:59 +0000 (21:15 +0000)]
Revert r66920. It was causing failures in the self-hosting buildbot (in release
mode).

Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll
Failed with signal(SIGBUS) at line 1
while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll -bugpoint-crashcalls -silence-passes > /dev/null
0   bugpoint          0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85
1   bugpoint          0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706
2   libSystem.B.dylib 0x92f112bb _sigtramp + 43
3   libSystem.B.dylib 0xffffffff _sigtramp + 1829694831
4   bugpoint          0x00021d1c main + 92
5   bugpoint          0x00002106 start + 54
6   bugpoint          0x00000004 start + 18446744073709543220
Stack dump:
0.    Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll -bugpoint-crashcalls -silence-passes

FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll
Failed with signal(SIGBUS) at line 1
while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll -dce -bugpoint-deletecalls -simplifycfg -silence-passes
0   bugpoint          0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85
1   bugpoint          0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706
2   libSystem.B.dylib 0x92f112bb _sigtramp + 43
3   libSystem.B.dylib 0xffffffff _sigtramp + 1829694831
4   bugpoint          0x00021d1c main + 92
5   bugpoint          0x00002106 start + 54
6   bugpoint          0x00000006 start + 18446744073709543222
Stack dump:
0.    Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll -dce -bugpoint-deletecalls -simplifycfg -silence-passes

FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll
Failed with signal(SIGBUS) at line 1
while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll  -bugpoint-crashcalls -silence-passes
0   bugpoint          0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85
1   bugpoint          0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706
2   libSystem.B.dylib 0x92f112bb _sigtramp + 43
3   libSystem.B.dylib 0xffffffff _sigtramp + 1829694831
4   bugpoint          0x00021d1c main + 92
5   bugpoint          0x00002106 start + 54
Stack dump:
0.    Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll -bugpoint-crashcalls -silence-passes

--- Reverse-merging (from foreign repository) r66920 into '.':
U    include/llvm/Support/CallSite.h
U    include/llvm/Instructions.h
U    lib/Analysis/IPA/GlobalsModRef.cpp
U    lib/Analysis/IPA/Andersens.cpp
U    lib/Bitcode/Writer/BitcodeWriter.cpp
U    lib/VMCore/Instructions.cpp
U    lib/VMCore/Verifier.cpp
U    lib/VMCore/AsmWriter.cpp
U    lib/Transforms/Utils/LowerInvoke.cpp
U    lib/Transforms/Scalar/SimplifyCFGPass.cpp
U    lib/Transforms/IPO/PruneEH.cpp
U    lib/Transforms/IPO/DeadArgumentElimination.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66953 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd support for a few simple escape characters in tblgen strings.
Chris Lattner [Fri, 13 Mar 2009 21:03:27 +0000 (21:03 +0000)]
add support for a few simple escape characters in tblgen strings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66949 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd ENABLE_COVERAGE, for building a +Coverage (gcov) configuration.
Daniel Dunbar [Fri, 13 Mar 2009 20:59:41 +0000 (20:59 +0000)]
Add ENABLE_COVERAGE, for building a +Coverage (gcov) configuration.
 - Required some extra makefile tweaks to introduce a new flag var
   which only goes to compile/link tools but not the relink step,
   otherwise we get a copy of libgcov in the relinked .o files.

 - No configure magic for this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66945 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix FastISel's assumption that i1 values are always zero-extended
Dan Gohman [Fri, 13 Mar 2009 20:42:20 +0000 (20:42 +0000)]
Fix FastISel's assumption that i1 values are always zero-extended
by inserting explicit zero extensions where necessary. Included
is a testcase where SelectionDAG produces a virtual register
holding an i1 value which FastISel previously mistakenly assumed
to be zero-extended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66941 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoremove a test that depends on -debug.
Chris Lattner [Fri, 13 Mar 2009 20:31:48 +0000 (20:31 +0000)]
remove a test that depends on -debug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66937 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoremove a testcase that depends on -debug existing.
Chris Lattner [Fri, 13 Mar 2009 20:31:25 +0000 (20:31 +0000)]
remove a testcase that depends on -debug existing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66936 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd 8 and 16 bit TLS moves.
Rafael Espindola [Fri, 13 Mar 2009 19:39:55 +0000 (19:39 +0000)]
add 8 and 16 bit TLS moves.
add a fixme note on how to remove code duplication.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66932 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoOne more place where debug info affects codegen.
Dale Johannesen [Fri, 13 Mar 2009 19:23:20 +0000 (19:23 +0000)]
One more place where debug info affects codegen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66930 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoTest case for rev. 66925
Devang Patel [Fri, 13 Mar 2009 18:50:51 +0000 (18:50 +0000)]
Test case for rev. 66925

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66927 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoImprove sext and zext of TLS variables.
Rafael Espindola [Fri, 13 Mar 2009 18:37:06 +0000 (18:37 +0000)]
Improve sext and zext of TLS variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66922 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoSecond installment of "BasicBlock operands to the back"
Gabor Greif [Fri, 13 Mar 2009 18:27:29 +0000 (18:27 +0000)]
Second installment of "BasicBlock operands to the back"
changes.

For InvokeInst now all arguments begin at op_begin().
The Callee, Cont and Fail are now faster to get by
access relative to op_end().

This patch introduces some temporary uglyness in CallSite.
Next I'll bring CallInst up to a similar scheme and then
the uglyness will magically vanish.

This patch also exposes all the reliance of the libraries
on InvokeInst's operand ordering. I am thinking of taking
care of that too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66920 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoremove a buggy test, it is not ok to use -debug in RUN line.
Chris Lattner [Fri, 13 Mar 2009 18:19:34 +0000 (18:19 +0000)]
remove a buggy test, it is not ok to use -debug in RUN line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66918 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agogeneralize this code so that fast isel handles integer truncates to i1, which
Chris Lattner [Fri, 13 Mar 2009 16:36:42 +0000 (16:36 +0000)]
generalize this code so that fast isel handles integer truncates to i1, which
codegen to the same thing as integer truncates to i8 (the top bits are
just undefined).  This implements rdar://6667338

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66902 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd a new TGError class and use it to propagate location info with
Chris Lattner [Fri, 13 Mar 2009 16:25:21 +0000 (16:25 +0000)]
add a new TGError class and use it to propagate location info with
errors when thrown.  This gets us nice errors like this from tblgen:

CMOVL32rr:  (set GR32:i32:$dst, (X86cmov GR32:$src1, GR32:$src2))
/Users/sabre/llvm/Debug/bin/tblgen: error:
Included from X86.td:116:
Parsing X86InstrInfo.td:922: In CMOVL32rr: X86cmov node requires exactly 4 operands!
def CMOVL32rr : I<0x4C, MRMSrcReg,       // if <s, GR32 = GR32
^

instead of just:

CMOVL32rr:  (set GR32:i32:$dst, (X86cmov GR32:$src1, GR32:$src2))
/Users/sabre/llvm/Debug/bin/tblgen: In CMOVL32rr: X86cmov node requires exactly 4 operands!

This is all I plan to do with this, but it should be easy enough to improve if anyone
cares (e.g. keeping more loc info in "dag" expr records in tblgen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66898 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agogive each Record a location.
Chris Lattner [Fri, 13 Mar 2009 16:09:24 +0000 (16:09 +0000)]
give each Record a location.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66897 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agomake "locations" a class instead of a typedef.
Chris Lattner [Fri, 13 Mar 2009 16:01:53 +0000 (16:01 +0000)]
make "locations" a class instead of a typedef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66895 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoUpdate these for the 2.5 release.
Duncan Sands [Fri, 13 Mar 2009 13:42:20 +0000 (13:42 +0000)]
Update these for the 2.5 release.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66890 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoThese instructions have special lowering that may lower them to SSE
Bill Wendling [Fri, 13 Mar 2009 08:41:47 +0000 (08:41 +0000)]
These instructions have special lowering that may lower them to SSE
instructions. Prevent that if we don't want implicit uses of SSE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66877 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoUnbreak build, bring in std::string for GCC 4.3
Argyrios Kyrtzidis [Fri, 13 Mar 2009 08:12:13 +0000 (08:12 +0000)]
Unbreak build, bring in std::string for GCC 4.3

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66876 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix some significant problems with constant pools that resulted in unnecessary paddin...
Evan Cheng [Fri, 13 Mar 2009 07:51:59 +0000 (07:51 +0000)]
Fix some significant problems with constant pools that resulted in unnecessary paddings between constant pool entries, larger than necessary alignments (e.g. 8 byte alignment for .literal4 sections), and potentially other issues.

1. ConstantPoolSDNode alignment field is log2 value of the alignment requirement. This is not consistent with other SDNode variants.
2. MachineConstantPool alignment field is also a log2 value.
3. However, some places are creating ConstantPoolSDNode with alignment value rather than log2 values. This creates entries with artificially large alignments, e.g. 256 for SSE vector values.
4. Constant pool entry offsets are computed when they are created. However, asm printer group them by sections. That means the offsets are no longer valid. However, asm printer uses them to determine size of padding between entries.
5. Asm printer uses expensive data structure multimap to track constant pool entries by sections.
6. Asm printer iterate over SmallPtrSet when it's emitting constant pool entries. This is non-deterministic.

Solutions:
1. ConstantPoolSDNode alignment field is changed to keep non-log2 value.
2. MachineConstantPool alignment field is also changed to keep non-log2 value.
3. Functions that create ConstantPool nodes are passing in non-log2 alignments.
4. MachineConstantPoolEntry no longer keeps an offset field. It's replaced with an alignment field. Offsets are not computed when constant pool entries are created. They are computed on the fly in asm printer and JIT.
5. Asm printer uses cheaper data structure to group constant pool entries.
6. Asm printer compute entry offsets after grouping is done.
7. Change JIT code to compute entry offsets on the fly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66875 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoUnbreak build.
Evan Cheng [Fri, 13 Mar 2009 07:41:30 +0000 (07:41 +0000)]
Unbreak build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66874 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agosplit buffer management and diagnostic printing out of the tblgen
Chris Lattner [Fri, 13 Mar 2009 07:05:43 +0000 (07:05 +0000)]
split buffer management and diagnostic printing out of the tblgen
lexer into its own TGSourceMgr class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66873 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoConvert VirtRegMap to a MachineFunctionPass.
Owen Anderson [Fri, 13 Mar 2009 05:55:11 +0000 (05:55 +0000)]
Convert VirtRegMap to a MachineFunctionPass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66870 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agogeneralize the previous code to use the full generality of LEA
Chris Lattner [Fri, 13 Mar 2009 05:53:31 +0000 (05:53 +0000)]
generalize the previous code to use the full generality of LEA
for i32/i64 expressions (we could also do i16 on cpus where
i16 lea is fast, but I didn't add this).  On the example, we now
generate:

_test:
movl 4(%esp), %eax
cmpl $42, (%eax)
setl %al
movzbl %al, %eax
leal 4(%eax,%eax,8), %eax
ret

instead of:

_test:
movl 4(%esp), %eax
cmpl $41, (%eax)
movl $4, %ecx
movl $13, %eax
cmovg %ecx, %eax
ret

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66869 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agooptimize the case of cond ? 42 : 41 and friends. This compiles the
Chris Lattner [Fri, 13 Mar 2009 05:22:11 +0000 (05:22 +0000)]
optimize the case of cond ? 42 : 41 and friends.  This compiles the
example to:

_test:
movl 4(%esp), %eax
cmpl $41, (%eax)
setg %al
movzbl %al, %eax
orl $4294967294, %eax
ret

instead of:

        movl    4(%esp), %eax
        cmpl    $41, (%eax)
movl $4294967294, %ecx
movl $4294967295, %eax
cmova %ecx, %eax
ret

which is smaller in code size and faster. rdar://6668608

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66868 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoOops...I committed too much.
Bill Wendling [Fri, 13 Mar 2009 04:39:26 +0000 (04:39 +0000)]
Oops...I committed too much.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66867 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoTemporarily XFAIL this test.
Bill Wendling [Fri, 13 Mar 2009 04:37:11 +0000 (04:37 +0000)]
Temporarily XFAIL this test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66866 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoEnhance address-mode folding of ISD::ADD to handle cases where the
Dan Gohman [Fri, 13 Mar 2009 02:25:09 +0000 (02:25 +0000)]
Enhance address-mode folding of ISD::ADD to handle cases where the
operands can't both be fully folded at the same time. For example,
in the included testcase, a global variable is being added with
an add of two values. The global variable wants RIP-relative
addressing, so it can't share the address with another base
register, but it's still possible to fold the initial add.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66865 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix one more place where debug info affected
Dale Johannesen [Fri, 13 Mar 2009 01:05:24 +0000 (01:05 +0000)]
Fix one more place where debug info affected
codegen (speculative execution).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66859 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agojust initialize the first element, we don't need to set the rest to zeros.
Chris Lattner [Fri, 13 Mar 2009 00:24:01 +0000 (00:24 +0000)]
just initialize the first element, we don't need to set the rest to zeros.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66850 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoEliminate a 9640 byte static mutable initialized data item by moving it
Chris Lattner [Fri, 13 Mar 2009 00:03:51 +0000 (00:03 +0000)]
Eliminate a 9640 byte static mutable initialized data item by moving it
to the stack.  This shrinks all llvm tools by 9k, and improves reentrancy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66847 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agostatic functions don't need an anonymous namespace.
Chris Lattner [Thu, 12 Mar 2009 23:59:55 +0000 (23:59 +0000)]
static functions don't need an anonymous namespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66845 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix a typo in a comment.
Dan Gohman [Thu, 12 Mar 2009 23:55:10 +0000 (23:55 +0000)]
Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66843 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoPrevious debug info fix to this code wasn't quite
Dale Johannesen [Thu, 12 Mar 2009 23:18:09 +0000 (23:18 +0000)]
Previous debug info fix to this code wasn't quite
right; did the wrong thing when there are exactly 11
non-debug instructions, followed by debug info.
Remove a FIXME since it's apparently been fixed along the way.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66840 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agocosmetic change, in preparation of future change
Gabor Greif [Thu, 12 Mar 2009 23:13:03 +0000 (23:13 +0000)]
cosmetic change, in preparation of future change

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66839 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd this test back.
Evan Cheng [Thu, 12 Mar 2009 23:01:35 +0000 (23:01 +0000)]
Add this test back.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66838 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoraw_ostream: unbuffered streams weren't being immediately flushed on
Daniel Dunbar [Thu, 12 Mar 2009 22:02:44 +0000 (22:02 +0000)]
raw_ostream: unbuffered streams weren't being immediately flushed on
single character writes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66827 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRevert commit 66140 since it caused several failures
Duncan Sands [Thu, 12 Mar 2009 21:13:42 +0000 (21:13 +0000)]
Revert commit 66140 since it caused several failures
in the Ada testcase.  Reverting this only covers up
the real problem, which is a nasty conceptual difficulty
in the phi elimination pass: when eliminating phi nodes
in landing pads, the register copies need to come before
the invoke, not at the end of the basic block which is
too late...  See PR3784.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66826 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoDarwin 10.4.x: "-rpath" is unnecessary when linking shared libraries.
Scott Michel [Thu, 12 Mar 2009 21:03:53 +0000 (21:03 +0000)]
Darwin 10.4.x: "-rpath" is unnecessary when linking shared libraries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66825 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoThere already was a class to force deterministic
Dale Johannesen [Thu, 12 Mar 2009 21:01:11 +0000 (21:01 +0000)]
There already was a class to force deterministic
sorting of ConstantInt's; unreinvent wheel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66824 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix an inconsistent use of LLVMGCCDIR. In all other cases, this directory
Bob Wilson [Thu, 12 Mar 2009 19:47:24 +0000 (19:47 +0000)]
Fix an inconsistent use of LLVMGCCDIR.  In all other cases, this directory
refers to the "prefix" directory, i.e., one level above "bin".  LLVMGCCPATH
is used as the directory containing the llvm-gcc executable, so add a "/bin"
suffix to get from LLVMGCCDIR to LLVMGCCPATH.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66823 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRearrange operands of the BranchInst, to be able to
Gabor Greif [Thu, 12 Mar 2009 18:34:49 +0000 (18:34 +0000)]
Rearrange operands of the BranchInst, to be able to
access each with a fixed negative index from op_end().

This has two important implications:
- getUser() will work faster, because there are less iterations
  for the waymarking algorithm to perform. This is important
  when running various analyses that want to determine callers
  of basic blocks.
- getSuccessor() now runs faster, because the indirection via OperandList
  is not necessary: Uses corresponding to the successors are at fixed
  offset to "this".

The price we pay is the slightly more complicated logic in the operator
User::delete, as it has to pick up the information whether it has to free
the memory of an original unconditional BranchInst or a BranchInst that
was originally conditional, but has been shortened to unconditional.
I was not able to come up with a nicer solution to this problem. (And
rest assured, I tried *a lot*).

Similar reorderings will follow for InvokeInst and CallInst. After that
some optimizations to pred_iterator and CallSite will fall out naturally.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66815 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRe-apply 66024 with fixes: 1. Fixed indirect call to immediate address assembly....
Evan Cheng [Thu, 12 Mar 2009 18:15:39 +0000 (18:15 +0000)]
Re-apply 66024 with fixes: 1. Fixed indirect call to immediate address assembly. 2. Fixed JIT encoding by making the address pc-relative.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66803 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAnother missing check for debug intrinsics.
Dale Johannesen [Thu, 12 Mar 2009 17:42:45 +0000 (17:42 +0000)]
Another missing check for debug intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66800 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFully initialize all ivars, fixing PR3790, patch by Edwin Torok!
Chris Lattner [Thu, 12 Mar 2009 17:22:48 +0000 (17:22 +0000)]
Fully initialize all ivars, fixing PR3790, patch by Edwin Torok!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66798 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoTypo.
Evan Cheng [Thu, 12 Mar 2009 17:07:39 +0000 (17:07 +0000)]
Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66797 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix test after Chris' select changes.
Evan Cheng [Thu, 12 Mar 2009 16:10:08 +0000 (16:10 +0000)]
Fix test after Chris' select changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66795 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdjust this test for recent sroa improvements.
Duncan Sands [Thu, 12 Mar 2009 11:56:12 +0000 (11:56 +0000)]
Adjust this test for recent sroa improvements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66791 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd some text to explain sentinels
Gabor Greif [Thu, 12 Mar 2009 10:30:31 +0000 (10:30 +0000)]
add some text to explain sentinels

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66790 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agominor tweaks
Gabor Greif [Thu, 12 Mar 2009 09:47:03 +0000 (09:47 +0000)]
minor tweaks

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66788 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoReorganize some #include's.
Owen Anderson [Thu, 12 Mar 2009 06:58:19 +0000 (06:58 +0000)]
Reorganize some #include's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66780 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMove 3 "(add (select cc, 0, c), x) -> (select cc, x, (add, x, c))"
Chris Lattner [Thu, 12 Mar 2009 06:52:53 +0000 (06:52 +0000)]
Move 3 "(add (select cc, 0, c), x) -> (select cc, x, (add, x, c))"
related transformations out of target-specific dag combine into the
ARM backend.  These were added by Evan in r37685 with no testcases
and only seems to help ARM (e.g. test/CodeGen/ARM/select_xform.ll).

Add some simple X86-specific (for now) DAG combines that turn things
like cond ? 8 : 0  -> (zext(cond) << 3).  This happens frequently
with the recently added cp constant select optimization, but is a
very general xform.  For example, we now compile the second example
in const-select.ll to:

_test:
        movsd   LCPI2_0, %xmm0
        ucomisd 8(%esp), %xmm0
        seta    %al
        movzbl  %al, %eax
        movl    4(%esp), %ecx
        movsbl  (%ecx,%eax,4), %eax
        ret

instead of:

_test:
        movl    4(%esp), %eax
        leal    4(%eax), %ecx
        movsd   LCPI2_0, %xmm0
        ucomisd 8(%esp), %xmm0
        cmovbe  %eax, %ecx
        movsbl  (%ecx), %eax
        ret

This passes multisource and dejagnu.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66779 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoimprove comment.
Chris Lattner [Thu, 12 Mar 2009 06:46:02 +0000 (06:46 +0000)]
improve comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66778 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoEnable Chris' value propagation change. It make available known sign, zero, one bits...
Evan Cheng [Thu, 12 Mar 2009 06:29:49 +0000 (06:29 +0000)]
Enable Chris' value propagation change. It make available known sign, zero, one bits information for values that are live out of basic blocks. The goal is to eliminate unnecessary sext, zext, truncate of values that are live-in to blocks. This does not handle PHI nodes yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66777 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoOn x86, if the only use of a i64 load is a i64 store, generate a pair of double load...
Evan Cheng [Thu, 12 Mar 2009 05:59:15 +0000 (05:59 +0000)]
On x86, if the only use of a i64 load is a i64 store, generate a pair of double load and store instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66776 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd no-unwind, remove duplicate run line.
Chris Lattner [Thu, 12 Mar 2009 05:56:37 +0000 (05:56 +0000)]
add no-unwind, remove duplicate run line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66775 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd nounwinds
Chris Lattner [Thu, 12 Mar 2009 05:35:33 +0000 (05:35 +0000)]
add nounwinds

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66773 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRevert r66765 and r66766. These were causing build failures on Darwin.
Bill Wendling [Thu, 12 Mar 2009 04:10:09 +0000 (04:10 +0000)]
Revert r66765 and r66766. These were causing build failures on Darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66770 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRegenerate.
Nick Lewycky [Thu, 12 Mar 2009 03:34:33 +0000 (03:34 +0000)]
Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66766 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoSet ARCH to x86 on mixed 32/64-bit Linux systems.
Nick Lewycky [Thu, 12 Mar 2009 03:34:19 +0000 (03:34 +0000)]
Set ARCH to x86 on mixed 32/64-bit Linux systems.

Remove the explicit if OS = Darwin test around the setting of -m32/-m64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66765 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoForgot to check-in this as part of 7761.
Sanjiv Gupta [Thu, 12 Mar 2009 03:20:07 +0000 (03:20 +0000)]
Forgot to check-in this as part of 7761.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66763 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoBanksel optimization is now based on the section names of symbols, since the symbols...
Sanjiv Gupta [Thu, 12 Mar 2009 02:10:45 +0000 (02:10 +0000)]
Banksel optimization is now based on the section names of symbols, since the symbols in one section will always be put into one bank.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66761 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAllow for switch values bigger than 64 bits.
Dale Johannesen [Thu, 12 Mar 2009 01:20:06 +0000 (01:20 +0000)]
Allow for switch values bigger than 64 bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66751 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd StringMap::lookup.
Daniel Dunbar [Thu, 12 Mar 2009 01:16:06 +0000 (01:16 +0000)]
Add StringMap::lookup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66750 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix some nondeterministic behavior when forwarding
Dale Johannesen [Thu, 12 Mar 2009 01:00:26 +0000 (01:00 +0000)]
Fix some nondeterministic behavior when forwarding
from a switch table.  Multiple table entries that
branch to the same place were being sorted by the
pointer value of the ConstantInt*; changed to sort
by the actual value of the ConstantInt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66749 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAlso pass -gcc-tool-args when building a shared object.
Evan Cheng [Thu, 12 Mar 2009 00:53:34 +0000 (00:53 +0000)]
Also pass -gcc-tool-args when building a shared object.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66746 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRevert r66024. The JIT encoding for CALLpcrel32 is wrong -- see PR3773, and the
Dan Gohman [Wed, 11 Mar 2009 23:01:47 +0000 (23:01 +0000)]
Revert r66024. The JIT encoding for CALLpcrel32 is wrong -- see PR3773, and the
assembly text output uses an indirect call ("call *") instead of a direct call.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66735 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoupdate
Gabor Greif [Wed, 11 Mar 2009 22:52:25 +0000 (22:52 +0000)]
update

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66733 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agooptimize i8 and i16 tls values.
Rafael Espindola [Wed, 11 Mar 2009 22:40:04 +0000 (22:40 +0000)]
optimize i8 and i16 tls values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66725 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoReorganization: Move the Spiller out of VirtRegMap.cpp into its own files. No (inten...
Owen Anderson [Wed, 11 Mar 2009 22:31:21 +0000 (22:31 +0000)]
Reorganization: Move the Spiller out of VirtRegMap.cpp into its own files.  No (intended) functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66720 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd a -no-implicit-float flag. This acts like -soft-float, but may generate
Bill Wendling [Wed, 11 Mar 2009 22:30:01 +0000 (22:30 +0000)]
Add a -no-implicit-float flag. This acts like -soft-float, but may generate
floating point instructions that are explicitly specified by the user.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66719 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoSkip interleaved debug info when fast-forwarding through
Dale Johannesen [Wed, 11 Mar 2009 22:19:43 +0000 (22:19 +0000)]
Skip interleaved debug info when fast-forwarding through
allocations.  Apparently the assumption is there is an
instruction (terminator?) following the allocation so I
am allowing the same assumption.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66716 91177308-0d34-0410-b5e6-96231b3b80d8