oota-llvm.git
15 years agoDon't use plain %x to print pointer values. I had changed it from %p
Dan Gohman [Fri, 5 Dec 2008 23:39:24 +0000 (23:39 +0000)]
Don't use plain %x to print pointer values. I had changed it from %p
since %p isn't formatted consistently, but obviously plain %x is wrong.
PRIxPTR with a cast to uintptr_t would work here, but that requires
inconvenient build-system changes. %lu works on all current and
foreseable future hosts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60616 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix test to pass on Linux.
Dale Johannesen [Fri, 5 Dec 2008 22:38:21 +0000 (22:38 +0000)]
Fix test to pass on Linux.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60614 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoForgot a file.
Dale Johannesen [Fri, 5 Dec 2008 21:55:35 +0000 (21:55 +0000)]
Forgot a file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60609 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMake LoopStrengthReduce smarter about hoisting things out of
Dale Johannesen [Fri, 5 Dec 2008 21:47:27 +0000 (21:47 +0000)]
Make LoopStrengthReduce smarter about hoisting things out of
loops when they can be subsumed into addressing modes.

Change X86 addressing mode check to realize that
some PIC references need an extra register.
(I believe this is correct for Linux, if not, I'm sure
someone will tell me.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60608 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMake a few major changes to memdep and its clients:
Chris Lattner [Fri, 5 Dec 2008 21:04:20 +0000 (21:04 +0000)]
Make a few major changes to memdep and its clients:
1. Merge the 'None' result into 'Normal', making loads
   and stores return their dependencies on allocations as Normal.
2. Split the 'Normal' result into 'Clobber' and 'Def' to
   distinguish between the cases when memdep knows the value is
   produced from when we just know if may be changed.
3. Move some of the logic for determining whether readonly calls
   are CSEs into memdep instead of it being in GVN.  This still
   leaves verification that the arguments are hte same to GVN to
   let it know about value equivalences in different contexts.
4. Change memdep's call/call dependency analysis to use
   getModRefInfo(CallSite,CallSite) instead of doing something
   very weak.  This only really matters for things like DSA, but
   someday maybe we'll have some other decent context sensitive
   analyses :)
5. This reimplements the guts of memdep to handle the new results.
6. This simplifies GVN significantly:
   a) readonly call CSE is slightly simpler
   b) I eliminated the "getDependencyFrom" chaining for load
      elimination and load CSE doesn't have to worry about
      volatile (they are always clobbers) anymore.
   c) GVN no longer does any 'lastLoad' caching, leaving it to
      memdep.
7. The logic in DSE is simplified a bit and sped up.  A potentially
   unsafe case was eliminated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60607 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoDemangle and pretty-print symbols in internal backtraces. Patch by
Dan Gohman [Fri, 5 Dec 2008 20:12:48 +0000 (20:12 +0000)]
Demangle and pretty-print symbols in internal backtraces. Patch by
Wesley Peck, with a few fixes by me.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60605 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRevert invalid r60393. It causes llvm-gcc bootstrap fails in release builds.
Anton Korobeynikov [Fri, 5 Dec 2008 19:38:49 +0000 (19:38 +0000)]
Revert invalid r60393. It causes llvm-gcc bootstrap fails in release builds.
See PR3160 for details

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60604 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoThis test also requires -mattr=+sse41.
Evan Cheng [Fri, 5 Dec 2008 19:26:37 +0000 (19:26 +0000)]
This test also requires -mattr=+sse41.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60601 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMake it illegal to call getDependency* on non-memory instructions
Chris Lattner [Fri, 5 Dec 2008 18:46:19 +0000 (18:46 +0000)]
Make it illegal to call getDependency* on non-memory instructions
like binary operators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60600 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoReason #3 from 60595 doesn't hold true. If we can fold a PIC load from constpool...
Evan Cheng [Fri, 5 Dec 2008 17:41:31 +0000 (17:41 +0000)]
Reason #3 from 60595 doesn't hold true. If we can fold a PIC load from constpool into a use, the rewrite happens at time of spill (not in VirtRegMap). Later on, if the GlobalBaseReg is spilled, the spiller can see the use uses GlobalBaseReg and do the right thing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60596 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoEffectively undo 60461 in PIC mode which simply transform V_SET0 / V_SETALLONES into...
Evan Cheng [Fri, 5 Dec 2008 17:23:48 +0000 (17:23 +0000)]
Effectively undo 60461 in PIC mode which simply transform V_SET0 / V_SETALLONES into a load from constpool in order to fold into restores. This is not safe to do when PIC base is being used for a number of reasons:
1. GlobalBaseReg may have been spilled.
2. It may not be live at the use.
3. Spiller doesn't know this is happening so it won't prevent GlobalBaseReg from being spilled later (That by itself is a nasty hack. It's needed because we don't insert the reload until later).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60595 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix test/Transforms/GVN/pre-load.ll
Chris Lattner [Fri, 5 Dec 2008 17:04:12 +0000 (17:04 +0000)]
Fix test/Transforms/GVN/pre-load.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60594 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix comment.
Evan Cheng [Fri, 5 Dec 2008 17:00:16 +0000 (17:00 +0000)]
Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60592 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoThe use of the construct:
Cedric Venet [Fri, 5 Dec 2008 13:37:30 +0000 (13:37 +0000)]
The use of the construct:
  for(Type1 B = ...;;) { Type2 B ; ... }
is bad: code is hard to read and VS VS don't like it (it ignore the second declaration of B).
This patch fix the problem in tablegen. Please don't write code like this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60590 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMake IsValueFullyAvailableInBlock safe.
Chris Lattner [Fri, 5 Dec 2008 07:49:08 +0000 (07:49 +0000)]
Make IsValueFullyAvailableInBlock safe.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60588 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd a new pop_back_val method which returns the value popped. This is
Chris Lattner [Fri, 5 Dec 2008 07:11:05 +0000 (07:11 +0000)]
add a new pop_back_val method which returns the value popped.  This is
heretical from a STL standpoint, but is oh-so-useful for things that
can't throw exceptions when copied, like, well, everything in LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60587 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoDrop the reg argument to isRegReDefinedByTwoAddr, which was redundant.
Dan Gohman [Fri, 5 Dec 2008 05:45:42 +0000 (05:45 +0000)]
Drop the reg argument to isRegReDefinedByTwoAddr, which was redundant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60586 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoUpdate comments. There is no getArgumentAccesses.
Dan Gohman [Fri, 5 Dec 2008 05:35:21 +0000 (05:35 +0000)]
Update comments. There is no getArgumentAccesses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60585 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoTeach StackSlotColoring to update MachineMemOperands when
Dan Gohman [Fri, 5 Dec 2008 05:31:14 +0000 (05:31 +0000)]
Teach StackSlotColoring to update MachineMemOperands when
changing the stack slots on an instruction, to keep them
consistent with the actual memory addresses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60584 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoIgnore IMPLICIT_DEF instructions when computing physreg liveness.
Dan Gohman [Fri, 5 Dec 2008 05:30:02 +0000 (05:30 +0000)]
Ignore IMPLICIT_DEF instructions when computing physreg liveness.
While they appear to provide a normal clobbering def, they don't
in the case of the awkward IMPLICIT_DEF+INSERT_SUBREG idiom. It
would be good to change INSERT_SUBREG; until then, this change
allows post-regalloc scheduling to cope in a mildly conservative
way.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60583 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRe-did 60519. It turns out Darwin's handling of hidden visibility symbols are a bit...
Evan Cheng [Fri, 5 Dec 2008 01:06:39 +0000 (01:06 +0000)]
Re-did 60519. It turns out Darwin's handling of hidden visibility symbols are a bit more complicate than I expected. Both declarations and weak definitions still need a stub indirection. However, the stubs are in data section and they contain the addresses of the actual symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60571 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoCellSPU: Add new directory under tests/CodeGen/CellSPU to retain tests that
Scott Michel [Fri, 5 Dec 2008 00:01:00 +0000 (00:01 +0000)]
CellSPU: Add new directory under tests/CodeGen/CellSPU to retain tests that
aren't part of the test suite but are generally useful nonetheless, and can
be expanded later to test the backend against the actual Cell SPU system.

There's basically no other good place to put this code, so put it here for
the time being.

- vecoperations.c: Vector shuffles for all supported vector types, tests
  for v16i8 add and multiply.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60566 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoHave raw_fd_ostream keep track of the position in the file to make tell() go faster...
Ted Kremenek [Thu, 4 Dec 2008 22:51:11 +0000 (22:51 +0000)]
Have raw_fd_ostream keep track of the position in the file to make tell() go faster by not requiring a flush().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60560 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoEnable LoopIndexSplit pass.
Devang Patel [Thu, 4 Dec 2008 21:40:31 +0000 (21:40 +0000)]
Enable LoopIndexSplit pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60555 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRewrite code that 1) filters loops and 2) calculates new loop bounds.
Devang Patel [Thu, 4 Dec 2008 21:38:42 +0000 (21:38 +0000)]
Rewrite code that 1) filters loops and 2) calculates new loop bounds.
This fixes many bugs. I will add more test cases in a separate check-in.

Some day, the code that manipulates CFG and updates dom. info could use refactoring help.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60554 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFactor out some common code.
Owen Anderson [Thu, 4 Dec 2008 21:20:30 +0000 (21:20 +0000)]
Factor out some common code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60553 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoCellSPU: Fix bug 3055
Scott Michel [Thu, 4 Dec 2008 21:01:44 +0000 (21:01 +0000)]
CellSPU: Fix bug 3055
- Add v4f32, v2f64 to LowerVECTOR_SHUFFLE
- Look for vector rotate in shuffle elements, generate a vector rotate
  instead of a full-blown shuffle when opportunity presents itself.
- Generate larger test harness and fix a few interesting but obscure bugs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60552 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoWhen allocating a stack temporary, use the correct
Duncan Sands [Thu, 4 Dec 2008 18:08:40 +0000 (18:08 +0000)]
When allocating a stack temporary, use the correct
number of bytes for types such as i1 which are not
a multiple of 8 bits in length.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60543 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMissing closing brace and reverse conditional condition on NDEBUG
Scott Michel [Thu, 4 Dec 2008 17:16:59 +0000 (17:16 +0000)]
Missing closing brace and reverse conditional condition on NDEBUG

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60541 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoStart simplifying a switch that has a successor that is a switch.
Chris Lattner [Thu, 4 Dec 2008 06:31:07 +0000 (06:31 +0000)]
Start simplifying a switch that has a successor that is a switch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60534 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoThis code is apparently quite confused. In the meantime,
Chris Lattner [Thu, 4 Dec 2008 06:14:27 +0000 (06:14 +0000)]
This code is apparently quite confused.  In the meantime,
get it building when NDEBUG is set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60532 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoTemporarily revert r60519. It was causing a bootstrap failure:
Bill Wendling [Thu, 4 Dec 2008 04:07:00 +0000 (04:07 +0000)]
Temporarily revert r60519. It was causing a bootstrap failure:

/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -DHAVE_CONFIG_H -I. -I../../../llvm-gcc.src/libgomp -I. -I../../../llvm-gcc.src/libgomp/config/posix -I../../../llvm-gcc.src/libgomp -Wall -pthread -Werror -O2 -g -O2 -MT barrier.lo -MD -MP -MF .deps/barrier.Tpo -c ../../../llvm-gcc.src/libgomp/barrier.c  -fno-common -DPIC -o .libs/barrier.o
checking for sys/file.h... /var/folders/zG/zGE-ZJOGFiGjv0B5cs5oYE+++TM/-Tmp-//cc34Jg5P.s:13:non-relocatable subtraction expression, "_gomp_tls_key" minus "L1$pb"
/var/folders/zG/zGE-ZJOGFiGjv0B5cs5oYE+++TM/-Tmp-//cc34Jg5P.s:13:symbol: "_gomp_tls_key" can't be undefined in a subtraction expression
make[4]: *** [barrier.lo] Error 1
make[4]: *** Waiting for unfinished jobs....
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -DHAVE_CONFIG_H -I. -I../../../llvm-gcc.src/libgomp -I. -I../../../llvm-gcc.src/libgomp/config/posix -I../../../llvm-gcc.src/libgomp -Wall -pthread -Werror -O2 -g -O2 -MT alloc.lo -MD -MP -MF .deps/alloc.Tpo -c ../../../llvm-gcc.src/libgomp/alloc.c -o alloc.o >/dev/null 2>&1
yes
checking for sys/param.h... make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-target-libgomp] Error 2
make[1]: *** Waiting for unfinished jobs....

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60527 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoCellSPU:
Scott Michel [Thu, 4 Dec 2008 03:02:42 +0000 (03:02 +0000)]
CellSPU:
- First patch from Nehal Desai, a new contributor at Aerospace. Nehal's patch
  fixes sign/zero/any-extending loads for integers and floating point. Example
  code, compiled w/o debugging or optimization where he first noticed the bug:

  int main(void) {
    float a = 99.0;
    printf("%d\n", a);
    return 0;
  }

  Verified that this code actually works on a Cell SPU.

Changes by Scott Michel:
- Fix bug in the value type list constructed by SPUISD::LDRESULT to include
  both the load result's result and chain, not just the chain alone.
- Simplify LowerLOAD and remove extraneous and unnecessary chains.
- Remove unused SPUISD pseudo instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60526 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoUse register names instead of numbers in debug output.
Dan Gohman [Thu, 4 Dec 2008 02:15:26 +0000 (02:15 +0000)]
Use register names instead of numbers in debug output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60525 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMake debug output more informative.
Dan Gohman [Thu, 4 Dec 2008 02:14:57 +0000 (02:14 +0000)]
Make debug output more informative.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60524 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoVisibility hidden GVs do not require extra load of symbol address from the GOT or...
Evan Cheng [Thu, 4 Dec 2008 01:56:50 +0000 (01:56 +0000)]
Visibility hidden GVs do not require extra load of symbol address from the GOT or non-lazy-ptr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60519 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd minimal support for disambiguating memory references. Currently
Dan Gohman [Thu, 4 Dec 2008 01:35:46 +0000 (01:35 +0000)]
Add minimal support for disambiguating memory references. Currently
the main thing this covers is spills to distinct spill slots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60517 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd a debugging option to help track down j-t problems.
Chris Lattner [Thu, 4 Dec 2008 00:07:59 +0000 (00:07 +0000)]
add a debugging option to help track down j-t problems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60514 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRewrite the liveness bookkeeping code to fix a bunch of
Dan Gohman [Wed, 3 Dec 2008 23:07:27 +0000 (23:07 +0000)]
Rewrite the liveness bookkeeping code to fix a bunch of
issues with subreg operands and tied operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60510 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMake the debugging dump be a full line.
Dale Johannesen [Wed, 3 Dec 2008 22:45:31 +0000 (22:45 +0000)]
Make the debugging dump be a full line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60509 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRemove an unused field.
Dale Johannesen [Wed, 3 Dec 2008 22:43:56 +0000 (22:43 +0000)]
Remove an unused field.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60508 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoHave PseudoSourceValue override Value::dump, so that it works
Dan Gohman [Wed, 3 Dec 2008 21:37:21 +0000 (21:37 +0000)]
Have PseudoSourceValue override Value::dump, so that it works
on PseudoSourceValue values. This also fixes a FIXME in
lib/VMCode/AsmWriter.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60507 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix a misspelled function name.
Dale Johannesen [Wed, 3 Dec 2008 20:56:12 +0000 (20:56 +0000)]
Fix a misspelled function name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60506 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFactor some code into a new FoldSingleEntryPHINodes method.
Chris Lattner [Wed, 3 Dec 2008 19:44:02 +0000 (19:44 +0000)]
Factor some code into a new FoldSingleEntryPHINodes method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60501 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix an inconsistency in a comment.
Dan Gohman [Wed, 3 Dec 2008 19:38:38 +0000 (19:38 +0000)]
Fix an inconsistency in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60500 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoUse mmx (punpckldq VR64, (mmx_v_set0)) to clear high 32-bits of a VR64 register.
Evan Cheng [Wed, 3 Dec 2008 19:38:05 +0000 (19:38 +0000)]
Use mmx (punpckldq VR64, (mmx_v_set0)) to clear high 32-bits of a VR64 register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60499 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoDon't charge the full latency for anti and output dependencies. This is
Dan Gohman [Wed, 3 Dec 2008 19:37:34 +0000 (19:37 +0000)]
Don't charge the full latency for anti and output dependencies. This is
an area where eventually it would be good to use target-dependent
information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60498 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoA step towards geting linux ppc to work (see PR 3099)
Dale Johannesen [Wed, 3 Dec 2008 19:33:10 +0000 (19:33 +0000)]
A step towards geting linux ppc to work (see PR 3099)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60497 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoWhen looking for anti-dependences on the critical path, don't bother
Dan Gohman [Wed, 3 Dec 2008 19:32:26 +0000 (19:32 +0000)]
When looking for anti-dependences on the critical path, don't bother
examining non-anti-dependence edges.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60496 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd a comment about callee-saved registers.
Dan Gohman [Wed, 3 Dec 2008 19:30:13 +0000 (19:30 +0000)]
Add a comment about callee-saved registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60495 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix a really wrong comment.
Dale Johannesen [Wed, 3 Dec 2008 19:25:46 +0000 (19:25 +0000)]
Fix a really wrong comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60494 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agofix a really incorrect comment.
Chris Lattner [Wed, 3 Dec 2008 19:18:54 +0000 (19:18 +0000)]
fix a really incorrect comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60492 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoSplit foldMemoryOperand into public non-virtual and protected virtual
Dan Gohman [Wed, 3 Dec 2008 18:43:12 +0000 (18:43 +0000)]
Split foldMemoryOperand into public non-virtual and protected virtual
parts, and add target-independent code to add/preserve
MachineMemOperands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60488 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRename isSimpleLoad to canFoldAsLoad, to better reflect its meaning.
Dan Gohman [Wed, 3 Dec 2008 18:15:48 +0000 (18:15 +0000)]
Rename isSimpleLoad to canFoldAsLoad, to better reflect its meaning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60487 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoExtend X86's addFrameReference to add a MachineMemOperand for
Dan Gohman [Wed, 3 Dec 2008 18:11:40 +0000 (18:11 +0000)]
Extend X86's addFrameReference to add a MachineMemOperand for
the frame reference. This will help post-RA scheduling determine
that spills to distinct stack slots are independent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60486 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix some tests. The grep for "il" was matching "file".
Rafael Espindola [Wed, 3 Dec 2008 17:14:56 +0000 (17:14 +0000)]
Fix some tests. The grep for "il" was matching "file".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60485 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoUpdate a comment.
Dan Gohman [Wed, 3 Dec 2008 17:10:41 +0000 (17:10 +0000)]
Update a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60484 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoOnly check that the result of the mapping was not
Duncan Sands [Wed, 3 Dec 2008 12:36:16 +0000 (12:36 +0000)]
Only check that the result of the mapping was not
a new node if the node was actually remapped.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60482 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix bug 3140.
Rafael Espindola [Wed, 3 Dec 2008 11:01:37 +0000 (11:01 +0000)]
Fix bug 3140.
Print a single parameter .file directive if we have an ELF target.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60480 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd support for ISD::TRAP to the XCore backend
Richard Osborne [Wed, 3 Dec 2008 10:59:16 +0000 (10:59 +0000)]
Add support for ISD::TRAP to the XCore backend

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60479 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRefactor code. No functionality change.
Evan Cheng [Wed, 3 Dec 2008 08:38:43 +0000 (08:38 +0000)]
Refactor code. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60478 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoCC should only be a ConstantSDNode at this point. Just use 'cast' instead of 'dyn_cast'.
Bill Wendling [Wed, 3 Dec 2008 08:32:02 +0000 (08:32 +0000)]
CC should only be a ConstantSDNode at this point. Just use 'cast' instead of 'dyn_cast'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60477 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix test.
Evan Cheng [Wed, 3 Dec 2008 08:20:45 +0000 (08:20 +0000)]
Fix test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60476 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agotestcase for br undef folding.
Chris Lattner [Wed, 3 Dec 2008 07:48:27 +0000 (07:48 +0000)]
testcase for br undef folding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60471 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoTeach jump threading some more simple tricks:
Chris Lattner [Wed, 3 Dec 2008 07:48:08 +0000 (07:48 +0000)]
Teach jump threading some more simple tricks:

1) have it fold "br undef", which does occur with
   surprising frequency as jump threading iterates.
2) teach j-t to delete dead blocks.  This removes the successor
   edges, reducing the in-edges of other blocks, allowing
   recursive simplification.
3) Fold things like:
     br COND, BBX, BBY
  BBX:
     br COND, BBZ, BBW

   which also happens because jump threading iterates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60470 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agothird time is the charm.
Chris Lattner [Wed, 3 Dec 2008 07:45:15 +0000 (07:45 +0000)]
third time is the charm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60469 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agofix assertion.
Chris Lattner [Wed, 3 Dec 2008 07:43:05 +0000 (07:43 +0000)]
fix assertion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60468 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agodon't spew tons of stuff to the output. This testcase is *not* for
Chris Lattner [Wed, 3 Dec 2008 06:41:50 +0000 (06:41 +0000)]
don't spew tons of stuff to the output.  This testcase is *not* for
loop deletion (it is for a ton of passes), which is very bad.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60465 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRename DeleteBlockIfDead to DeleteDeadBlock and make it
Chris Lattner [Wed, 3 Dec 2008 06:40:52 +0000 (06:40 +0000)]
Rename DeleteBlockIfDead to DeleteDeadBlock and make it
unconditionally delete the block.  All likely clients will
do the checking anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60464 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFactor some code out of SimplifyCFG, forming a new
Chris Lattner [Wed, 3 Dec 2008 06:37:44 +0000 (06:37 +0000)]
Factor some code out of SimplifyCFG, forming a new
DeleteBlockIfDead method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60463 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMark x86's V_SET0 and V_SETALLONES with isSimpleLoad, and teach X86's
Dan Gohman [Wed, 3 Dec 2008 05:21:24 +0000 (05:21 +0000)]
Mark x86's V_SET0 and V_SETALLONES with isSimpleLoad, and teach X86's
foldMemoryOperand how to "fold" them, by converting them into constant-pool
loads. When they aren't folded, they use xorps/cmpeqd, but for example when
register pressure is high, they may now be folded as memory operands, which
reduces register pressure.

Also, mark V_SET0 isAsCheapAsAMove so that two-address-elimination will
remat it instead of copying zeros around (V_SETALLONES was already marked).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60461 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoChange label to 'carry' for unsigned adds.
Bill Wendling [Wed, 3 Dec 2008 02:43:12 +0000 (02:43 +0000)]
Change label to 'carry' for unsigned adds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60460 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd a sanity-check to tablegen to catch the case where isSimpleLoad
Dan Gohman [Wed, 3 Dec 2008 02:30:17 +0000 (02:30 +0000)]
Add a sanity-check to tablegen to catch the case where isSimpleLoad
is set but mayLoad is not set. Fix all the problems this turned up.

Change code to not use isSimpleLoad instead of mayLoad unless it
really wants isSimpleLoad.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60459 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix a missing #include.
Dan Gohman [Wed, 3 Dec 2008 02:10:00 +0000 (02:10 +0000)]
Fix a missing #include.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60458 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd an explicit keyword.
Dan Gohman [Wed, 3 Dec 2008 01:55:47 +0000 (01:55 +0000)]
Add an explicit keyword.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60457 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoReplace a #include with a forward-declaration.
Dan Gohman [Wed, 3 Dec 2008 01:53:18 +0000 (01:53 +0000)]
Replace a #include with a forward-declaration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60456 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix this comment to reflect that it applies to types other
Dan Gohman [Wed, 3 Dec 2008 01:39:44 +0000 (01:39 +0000)]
Fix this comment to reflect that it applies to types other
than just i32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60455 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix byval arguments in the fastcc calling convention. The fastcc convention
Dan Gohman [Wed, 3 Dec 2008 01:28:04 +0000 (01:28 +0000)]
Fix byval arguments in the fastcc calling convention. The fastcc convention
delegates to the regular x86-32 convention which handles byval, but only
after it handles a few cases, and it's necessary to handle byval before
handling those cases. This fixes PR3122 (and rdar://6400815), llvm-gcc
miscompiling LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60453 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd nounwind attributes to this test.
Dan Gohman [Wed, 3 Dec 2008 01:10:18 +0000 (01:10 +0000)]
Add nounwind attributes to this test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60451 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agotestcases for recent dag combiner changes
Dale Johannesen [Wed, 3 Dec 2008 00:52:41 +0000 (00:52 +0000)]
testcases for recent dag combiner changes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60449 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix isIntN to work with APInts > 64 bits. This method is only
Chris Lattner [Tue, 2 Dec 2008 23:33:29 +0000 (23:33 +0000)]
Fix isIntN to work with APInts > 64 bits.  This method is only
used by clang apparently.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60446 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRemove a (what appears to be) overly strict assertion. Here is what happened:
Evan Cheng [Tue, 2 Dec 2008 21:57:09 +0000 (21:57 +0000)]
Remove a (what appears to be) overly strict assertion. Here is what happened:
1. ppcf128 select is expanded to f64 select's.
2. f64 select operand 0 is an i1 truncate, it's promoted to i32 zero_extend.
3. f64 select is updated. It's changed back to a "NewNode" and being re-analyzed.
4. f64 select operands are being processed. Operand 0 is a "NewNode". It's being expunged out of ReplacedValues map.
5. ExpungeNode tries to remap f64 select and notice it's a "NewNode" and assert.
Duncan, please take a look. Thanks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60443 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMinor rewrite per review feedback.
Dale Johannesen [Tue, 2 Dec 2008 21:17:11 +0000 (21:17 +0000)]
Minor rewrite per review feedback.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60442 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoNon-functional change: make custom lowering for truncate stylistically
Scott Michel [Tue, 2 Dec 2008 19:55:08 +0000 (19:55 +0000)]
Non-functional change: make custom lowering for truncate stylistically
consistent with the way it's generally done in other places.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60439 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoCellSPU:
Scott Michel [Tue, 2 Dec 2008 19:53:53 +0000 (19:53 +0000)]
CellSPU:
- Incorporate Tilmann Scheller's ISD::TRUNCATE custom lowering patch
- Update SPU calling convention info, even if it's not used yet (but can be
  at some point or another)
- Ensure that any-extended f32 loads are custom lowered, especially when
  they're promoted for use in printf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60438 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix a typo in a comment.
Dan Gohman [Tue, 2 Dec 2008 19:27:20 +0000 (19:27 +0000)]
Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60434 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd support for folding spills into preceding defs when doing pre-alloc splitting.
Owen Anderson [Tue, 2 Dec 2008 18:53:47 +0000 (18:53 +0000)]
Add support for folding spills into preceding defs when doing pre-alloc splitting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60433 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoOne more transformation.
Dale Johannesen [Tue, 2 Dec 2008 18:40:40 +0000 (18:40 +0000)]
One more transformation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60432 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMake the code do what the comment says it does.
Dale Johannesen [Tue, 2 Dec 2008 18:40:09 +0000 (18:40 +0000)]
Make the code do what the comment says it does.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60431 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoComment typeo fix, thanks Duncan!
Chris Lattner [Tue, 2 Dec 2008 18:33:11 +0000 (18:33 +0000)]
Comment typeo fix, thanks Duncan!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60429 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agomake it possible to custom lower TRUNCATE (needed for the CellSPU target)
Tilmann Scheller [Tue, 2 Dec 2008 12:12:25 +0000 (12:12 +0000)]
make it possible to custom lower TRUNCATE (needed for the CellSPU target)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60409 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoImplement PRE of loads in the GVN pass with a pretty cheap and
Chris Lattner [Tue, 2 Dec 2008 08:16:11 +0000 (08:16 +0000)]
Implement PRE of loads in the GVN pass with a pretty cheap and
straight-forward implementation.  This does not require any extra
alias analysis queries beyond what we already do for non-local loads.

Some programs really really like load PRE.  For example, SPASS triggers
this ~1000 times, ~300 times in 255.vortex, and ~1500 times on 403.gcc.

The biggest limitation to the implementation is that it does not split
critical edges.  This is a huge killer on many programs and should be
addressed after the initial patch is enabled by default.

The implementation of this should incidentally speed up rejection of
non-local loads because it avoids creating the repl densemap in cases
when it won't be used for fully redundant loads.

This is currently disabled by default.
Before I turn this on, I need to fix a couple of miscompilations in
the testsuite, look at compile time performance numbers, and look at
perf impact.  This is pretty close to ready though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60408 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd a new SCEV representing signed division.
Nick Lewycky [Tue, 2 Dec 2008 08:05:48 +0000 (08:05 +0000)]
Add a new SCEV representing signed division.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60407 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRemoved some unnecessary code in widening.
Mon P Wang [Tue, 2 Dec 2008 07:35:08 +0000 (07:35 +0000)]
Removed some unnecessary code in widening.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60406 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd a little helper function that does PHI translation.
Chris Lattner [Tue, 2 Dec 2008 07:16:45 +0000 (07:16 +0000)]
add a little helper function that does PHI translation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60405 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd a note
Chris Lattner [Tue, 2 Dec 2008 06:32:34 +0000 (06:32 +0000)]
add a note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60404 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRemove some errors that crept in. No functionality change.
Bill Wendling [Tue, 2 Dec 2008 06:24:20 +0000 (06:24 +0000)]
Remove some errors that crept in. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60403 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMerge two if-statements into one.
Bill Wendling [Tue, 2 Dec 2008 06:22:04 +0000 (06:22 +0000)]
Merge two if-statements into one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60402 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMore styalistic changes. No functionality change.
Bill Wendling [Tue, 2 Dec 2008 06:18:11 +0000 (06:18 +0000)]
More styalistic changes. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60401 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd densemap range insertion method.
Chris Lattner [Tue, 2 Dec 2008 06:08:04 +0000 (06:08 +0000)]
add densemap range insertion method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60400 91177308-0d34-0410-b5e6-96231b3b80d8