Duncan Sands [Wed, 27 Apr 2011 10:55:12 +0000 (10:55 +0000)]
Stop trying to have instcombine preserve LCSSA form: this was not
effective in avoiding recomputation of LCSSA form; the widespread
use of instsimplify (which looks through phi nodes) means it was
not preserving LCSSA form anyway; and instcombine is no longer
scheduled in the middle of the loop passes so this doesn't matter
anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130301
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Andrew Trick [Wed, 27 Apr 2011 05:42:17 +0000 (05:42 +0000)]
Test case and comment for PR9633.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130294
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Nick Lewycky [Wed, 27 Apr 2011 03:22:17 +0000 (03:22 +0000)]
Use static inline to do the right thing when built in C99 mode. Of course,
C89 doesn't have an inline keyword.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130279
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Eli Friedman [Wed, 27 Apr 2011 01:45:07 +0000 (01:45 +0000)]
Refactor out code to fast-isel a memcpy operation with a small constant
length. (I'm planning to use this to implement byval.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130274
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Rafael Espindola [Wed, 27 Apr 2011 01:43:49 +0000 (01:43 +0000)]
Force some values to be absolute and align based on the FDE pointers size. A small
step towards using .cfi_* on OS X.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130273
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Eli Friedman [Wed, 27 Apr 2011 01:34:27 +0000 (01:34 +0000)]
Fix an edge case involving branches in fast-isel on x86.
rdar://problem/
9303306 .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130272
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Andrew Trick [Wed, 27 Apr 2011 01:21:25 +0000 (01:21 +0000)]
Fix for PR9633 [indvars] Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.
Added a type check in ScalarEvolution::computeSCEVAtScope to handle the case in which operands of an
AddRecExpr in the current scope are folded.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130271
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Chris Lattner [Tue, 26 Apr 2011 22:42:01 +0000 (22:42 +0000)]
Enhance memdep to return clobber relation between noalias loads when
an earlier load could be widened to encompass a later load. For example,
if we see:
X = load i8* P, align 4
Y = load i8* (P+3), align 1
and we have a 32-bit native integer type, we can widen the former load
to i32 which then makes the second load redundant. GVN can't actually
do anything with this load/load relation yet, so this isn't testable, but
it is the next step to resolving PR6627, and a fairly general class of
"merge neighboring loads" missed optimizations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130250
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Jakob Stoklund Olesen [Tue, 26 Apr 2011 22:33:12 +0000 (22:33 +0000)]
Add a safe-guard against repeated splitting for some rare cases.
The number of blocks covered by a live range must be strictly decreasing when
splitting, otherwise we can't allow repeated splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130249
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Chris Lattner [Tue, 26 Apr 2011 21:53:34 +0000 (21:53 +0000)]
use AA::isMustAlias to simplify some calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130248
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Chris Lattner [Tue, 26 Apr 2011 21:50:51 +0000 (21:50 +0000)]
remove support for llvm.invariant.end from memdep. It is a
work-in-progress that is not progressing, and it has issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130247
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Evan Cheng [Tue, 26 Apr 2011 21:31:35 +0000 (21:31 +0000)]
Be careful about scheduling nodes above previous calls. It increase usages of
more callee-saved registers and introduce copies. Only allows it if scheduling
a node above calls would end up lessen register pressure.
Call operands also has added ABI restrictions for register allocation, so be
extra careful with hoisting them above calls.
rdar://
9329627
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130245
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Evan Cheng [Tue, 26 Apr 2011 21:09:04 +0000 (21:09 +0000)]
This test should be in MC. It breaks with changes to scheduling / register allocation so it's being removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130243
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Chris Lattner [Tue, 26 Apr 2011 20:45:33 +0000 (20:45 +0000)]
make a couple of changes to the standard pass pipeline:
1. Only run the early (in the module pass pipe) instcombine/simplifycfg
if the "unit at a time" passes they are cleaning up after runs.
2. Move the "clean up after the unroller" pass to the very end of the
function-level pass pipeline. Loop unroll uses instsimplify now,
so it doesn't create a ton of trash. Moving instcombine later allows
it to clean up after opportunities are exposed by GVN, DSE, etc.
3. Introduce some phase ordering tests for things that are specifically
intended to be simplified by the full optimizer as a whole.
This resolves PR2338, and is progress towards PR6627, which will be
generating code that looks similar to test2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130241
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Chris Lattner [Tue, 26 Apr 2011 20:18:20 +0000 (20:18 +0000)]
Transform: "icmp eq (trunc (lshr(X, cst1)), cst" to "icmp (and X, mask), cst"
when X has multiple uses. This is useful for exposing secondary optimizations,
but the X86 backend isn't ready for this when X has a single use. For example,
this can disable load folding.
This is inching towards resolving PR6627.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130238
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Chris Lattner [Tue, 26 Apr 2011 20:02:45 +0000 (20:02 +0000)]
some random cleanups, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130237
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Chris Lattner [Tue, 26 Apr 2011 19:50:39 +0000 (19:50 +0000)]
add an m_ConstantInt matching predicate that binds to a uint64_t, and add an m_OneUse()
predicate that matches if the subexpr has a single use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130235
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Jim Grosbach [Tue, 26 Apr 2011 19:44:18 +0000 (19:44 +0000)]
ARM and Thumb2 support for atomic MIN/MAX/UMIN/UMAX loads.
rdar://
9326019
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130234
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Rafael Espindola [Tue, 26 Apr 2011 19:26:53 +0000 (19:26 +0000)]
Print the label if we will use it in debug_frame.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130232
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Devang Patel [Tue, 26 Apr 2011 19:06:18 +0000 (19:06 +0000)]
Refactor code. Keep dwarf register operation selection logic at one place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130231
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Jakob Stoklund Olesen [Tue, 26 Apr 2011 18:52:36 +0000 (18:52 +0000)]
Use the new TRI->getLargestLegalSuperClass hook to constrain register class inflation.
This has two effects: 1. We never inflate to a larger register class than what
the sub-target can handle. 2. Completely unconstrained virtual registers get the
largest possible register class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130229
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Jakob Stoklund Olesen [Tue, 26 Apr 2011 18:52:33 +0000 (18:52 +0000)]
Add a TRI::getLargestLegalSuperClass hook to provide an upper limit on register class inflation.
The hook will be used by the register allocator when recomputing register
classes after removing constraints.
Thumb1 code doesn't allow anything larger than tGPR, and x86 needs to ensure
that the spill size doesn't change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130228
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Benjamin Kramer [Tue, 26 Apr 2011 18:47:43 +0000 (18:47 +0000)]
Force a triple on this test to unbreak windows buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130226
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Devang Patel [Tue, 26 Apr 2011 18:24:39 +0000 (18:24 +0000)]
Fix an off by one error while accessing complex address element of a DIVariable.
This worked untill now because stars are aligned (i.e. num of complex address elments are always 0 or 2+ and when it is 2+ at least two elements are access together)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130225
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Chris Lattner [Tue, 26 Apr 2011 17:41:02 +0000 (17:41 +0000)]
Improve the bail-out predicate to really only kick in when phi
translation fails. We were bailing out in some cases that would
cause us to miss GVN'ing some non-local cases away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130206
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Dan Gohman [Tue, 26 Apr 2011 17:18:34 +0000 (17:18 +0000)]
Fast-isel support for simple inline asms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130205
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Oscar Fuentes [Tue, 26 Apr 2011 14:55:27 +0000 (14:55 +0000)]
Honor LLVM_BUILD_RUNTIME.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130199
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Rafael Espindola [Tue, 26 Apr 2011 14:17:42 +0000 (14:17 +0000)]
Add test for PR9743.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130198
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Duncan Sands [Tue, 26 Apr 2011 07:30:10 +0000 (07:30 +0000)]
Another example of a static table that wasn't marked static.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130193
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Chris Lattner [Tue, 26 Apr 2011 06:14:13 +0000 (06:14 +0000)]
don't emit the symbol name twice for local bss and common
symbols. For example, don't emit:
.comm _i,4,2 ## @i
## @i
instead emit:
.comm _i,4,2 ## @i
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130192
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Nick Lewycky [Tue, 26 Apr 2011 05:48:41 +0000 (05:48 +0000)]
Add cmakefiles to build profile_rt.so!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130191
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Evan Cheng [Tue, 26 Apr 2011 04:57:37 +0000 (04:57 +0000)]
Fix typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130190
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Rafael Espindola [Tue, 26 Apr 2011 03:58:56 +0000 (03:58 +0000)]
Print all the moves at a given label instead of just the first one.
Remove previous DwarfCFI hack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130187
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Nick Lewycky [Tue, 26 Apr 2011 03:54:16 +0000 (03:54 +0000)]
Rename everything to follow LLVM style ... I think.
Add support for switch and indirectbr edges. This works by densely numbering
all blocks which have such terminators, and then separately numbering the
possible successors. The predecessors write down a number, the successor knows
its own number (as a ConstantInt) and sends that and the pointer to the number
the predecessor wrote down to the runtime, who looks up the counter in a
per-function table.
Coverage data should now be functional, but I haven't tested it on anything
other than my 2-file synthetic test program for coverage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130186
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Rafael Espindola [Tue, 26 Apr 2011 02:17:58 +0000 (02:17 +0000)]
No relocation produces a SLEB or ULEB, make sure they are handled in MC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130181
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Chris Lattner [Tue, 26 Apr 2011 01:21:15 +0000 (01:21 +0000)]
Enhance MemDep: When alias analysis returns a partial alias result,
return it as a clobber. This allows GVN to do smart things.
Enhance GVN to be smart about the case when a small load is clobbered
by a larger overlapping load. In this case, forward the value. This
allows us to compile stuff like this:
int test(void *P) {
int tmp = *(unsigned int*)P;
return tmp+*((unsigned char*)P+1);
}
into:
_test: ## @test
movl (%rdi), %ecx
movzbl %ch, %eax
addl %ecx, %eax
ret
which has one load. We already handled the case where the smaller
load was from a must-aliased base pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130180
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Devang Patel [Tue, 26 Apr 2011 00:12:46 +0000 (00:12 +0000)]
Let dwarf writer allocate extra space in the debug location expression. This space, if requested, will be used for complex addresses of the Blocks' variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130178
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Devang Patel [Mon, 25 Apr 2011 23:05:21 +0000 (23:05 +0000)]
Rename a local variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130171
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Devang Patel [Mon, 25 Apr 2011 23:02:17 +0000 (23:02 +0000)]
Rename a method to match what it really does.
s/addVariableAddress/addFrameVariableAddress/g
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130170
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Devang Patel [Mon, 25 Apr 2011 22:52:55 +0000 (22:52 +0000)]
Do not drop a variable's complex address if it is not based on frame base.
Observed this while reading code, so I do not have a test case handy here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130167
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Dan Gohman [Mon, 25 Apr 2011 22:48:29 +0000 (22:48 +0000)]
Fix an iterator invalidation bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130166
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Eric Christopher [Mon, 25 Apr 2011 22:39:46 +0000 (22:39 +0000)]
Make this test disable fast isel as it's not needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130165
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Chris Lattner [Mon, 25 Apr 2011 22:14:33 +0000 (22:14 +0000)]
mark a large static table static. Pointed out by Michael Ilseman!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130160
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Chris Lattner [Mon, 25 Apr 2011 21:02:12 +0000 (21:02 +0000)]
Improve adherence to general style, use "foo_t &x" instead of "foo_t& x"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130153
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Chris Lattner [Mon, 25 Apr 2011 20:58:50 +0000 (20:58 +0000)]
allow adding a FoldingSetNodeID to a FastFoldingSetNode, resolving PR9499,
patch by Johannes Schaub!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130151
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Chris Lattner [Mon, 25 Apr 2011 18:44:26 +0000 (18:44 +0000)]
add a missed bitfield instcombine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130137
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Akira Hatanaka [Mon, 25 Apr 2011 17:10:45 +0000 (17:10 +0000)]
Lower BlockAddress node when relocation-model is static.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130131
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Devang Patel [Mon, 25 Apr 2011 16:33:52 +0000 (16:33 +0000)]
A dbg.declare may not be in entry block, even if it is referring to an incoming argument. However, It is appropriate to emit DBG_VALUE referring to this incoming argument in entry block in MachineFunction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130129
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Benjamin Kramer [Mon, 25 Apr 2011 10:12:01 +0000 (10:12 +0000)]
Make tests more useful.
lit needs a linter ...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130126
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Chandler Carruth [Mon, 25 Apr 2011 07:11:23 +0000 (07:11 +0000)]
Remove some hard coded CR-LFs. Some of these were the entire files, one of
these was just one line of a file. Explicitly set the eol-style property on the
files to try and ensure this fix stays.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130125
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Duncan Sands [Mon, 25 Apr 2011 06:21:43 +0000 (06:21 +0000)]
Fix comment typo. Noticed by Liu.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130120
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Rafael Espindola [Sun, 24 Apr 2011 19:55:34 +0000 (19:55 +0000)]
Simplify the logic. Noticed by aKor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130116
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Rafael Espindola [Sun, 24 Apr 2011 19:00:34 +0000 (19:00 +0000)]
Synchronize the conditions for producing a .cfi_startproc and a .cfi_endproc.
Fixes PR9787.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130115
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Sebastian Redl [Sun, 24 Apr 2011 15:47:01 +0000 (15:47 +0000)]
Fix Target/ARM/Thumb1FrameLowering.h header guard.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130097
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Sebastian Redl [Sun, 24 Apr 2011 15:46:56 +0000 (15:46 +0000)]
Give MC/MCDisassembler/Disassembler.h a header guard.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130096
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Sebastian Redl [Sun, 24 Apr 2011 15:46:51 +0000 (15:46 +0000)]
Give SplitKit.h a header guard.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130095
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Sebastian Redl [Sun, 24 Apr 2011 15:46:46 +0000 (15:46 +0000)]
Give ImmutableIntervalMap.h an include guard.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130094
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Jay Foad [Sun, 24 Apr 2011 14:30:00 +0000 (14:30 +0000)]
Fix an assert to check exactly what it says.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130093
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Mikhail Glushenkov [Sun, 24 Apr 2011 14:17:41 +0000 (14:17 +0000)]
Add a TODO.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130092
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Mikhail Glushenkov [Sun, 24 Apr 2011 14:17:37 +0000 (14:17 +0000)]
Regenerate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130091
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Mikhail Glushenkov [Sun, 24 Apr 2011 14:17:32 +0000 (14:17 +0000)]
Remove all references to plugins from the LLVMC docs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130090
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Jay Foad [Sun, 24 Apr 2011 10:11:03 +0000 (10:11 +0000)]
PR9214: Convert the DIBuilder API to use ArrayRef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130086
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Jay Foad [Sat, 23 Apr 2011 19:53:52 +0000 (19:53 +0000)]
Remove unused STL header includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130068
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Jay Foad [Sat, 23 Apr 2011 09:06:00 +0000 (09:06 +0000)]
Like the coding standards say, do not use "using namespace std".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130054
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Benjamin Kramer [Sat, 23 Apr 2011 08:21:06 +0000 (08:21 +0000)]
Silence an overzealous uninitialized variable warning from GCC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130053
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Andrew Trick [Sat, 23 Apr 2011 04:08:15 +0000 (04:08 +0000)]
Accidental function name mangling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130050
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Andrew Trick [Sat, 23 Apr 2011 03:55:32 +0000 (03:55 +0000)]
Thumb2 and ARM add/subtract with carry fixes.
Fixes Thumb2 ADCS and SBCS lowering: <rdar://problem/
9275821>.
t2ADCS/t2SBCS are now pseudo instructions, consistent with ARM, so the
assembly printer correctly prints the 's' suffix.
Fixes Thumb2 adde -> SBC matching to check for live/dead carry flags.
Fixes the internal ARM machine opcode mnemonic for ADCS/SBCS.
Fixes ARM SBC lowering to check for live carry (potential bug).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130048
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Andrew Trick [Sat, 23 Apr 2011 03:27:19 +0000 (03:27 +0000)]
Comment edit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130047
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Andrew Trick [Sat, 23 Apr 2011 03:24:11 +0000 (03:24 +0000)]
whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130046
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NAKAMURA Takumi [Sat, 23 Apr 2011 00:30:22 +0000 (00:30 +0000)]
docs: Introduce cascading style <div> and <p> continued on <h[2-5]>.
<h2>Section Example</h2>
<div> <!-- h2+div is applied -->
<p>Section preamble.</p>
<h3>Subsection Example</h3>
<p> <!-- h3+p is applied -->
Subsection body
</p>
<!-- End of section body -->
</div>
FIXME: Care H5 better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130040
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NAKAMURA Takumi [Sat, 23 Apr 2011 00:15:45 +0000 (00:15 +0000)]
test/CodeGen/X86/shrink-compare.ll: Relax expressions for Win64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130039
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Owen Anderson [Fri, 22 Apr 2011 23:38:06 +0000 (23:38 +0000)]
Teach FastISel to deal with instructions that have two immediate operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130033
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Devang Patel [Fri, 22 Apr 2011 23:10:17 +0000 (23:10 +0000)]
Let front-end tie subprogram declaration with subprogram definition directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130028
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Eric Christopher [Fri, 22 Apr 2011 23:08:45 +0000 (23:08 +0000)]
Fix comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130027
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Jakob Stoklund Olesen [Fri, 22 Apr 2011 22:47:40 +0000 (22:47 +0000)]
Always compare the cost of region splitting with the cost of per-block splitting.
Sometimes it is better to split per block, and we missed those cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130025
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Mikhail Glushenkov [Fri, 22 Apr 2011 22:05:29 +0000 (22:05 +0000)]
The .inc file is auto-generated and must not be edited by hand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130021
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Chris Lattner [Fri, 22 Apr 2011 21:59:37 +0000 (21:59 +0000)]
Recommit the fix for rdar://
9289512 with a couple tweaks to
fix bugs exposed by the gcc dejagnu testsuite:
1. The load may actually be used by a dead instruction, which
would cause an assert.
2. The load may not be used by the current chain of instructions,
and we could move it past a side-effecting instruction. Change
how we process uses to define the problem away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130018
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Johnny Chen [Fri, 22 Apr 2011 19:12:43 +0000 (19:12 +0000)]
Disassembly of A8.6.59 LDR (literal) Encoding T1 (16-bit thumb instruction) should
print out ldr, not ldr.n.
rdar://problem/
9267772
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130008
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Benjamin Kramer [Fri, 22 Apr 2011 18:47:44 +0000 (18:47 +0000)]
DAGCombine: fold "(zext x) == C" into "x == (trunc C)" if the trunc is lossless.
On x86 this allows to fold a load into the cmp, greatly reducing register pressure.
movzbl (%rdi), %eax
cmpl $47, %eax
->
cmpb $47, (%rdi)
This shaves 8k off gcc.o on i386. I'll leave applying the patch in README.txt to Chris :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130005
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Devang Patel [Fri, 22 Apr 2011 18:09:57 +0000 (18:09 +0000)]
Do not leak argument's DbgVariables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130004
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Devang Patel [Fri, 22 Apr 2011 16:44:29 +0000 (16:44 +0000)]
Add asserts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129995
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Benjamin Kramer [Fri, 22 Apr 2011 15:30:40 +0000 (15:30 +0000)]
X86: Try to use a smaller encoding by transforming (X << C1) & C2 into (X & (C2 >> C1)) & C1. (Part of PR5039)
This tends to happen a lot with bitfield code generated by clang. A simple example for x86_64 is
uint64_t foo(uint64_t x) { return (x&1) << 42; }
which used to compile into bloated code:
shlq $42, %rdi ## encoding: [0x48,0xc1,0xe7,0x2a]
movabsq $
4398046511104, %rax ## encoding: [0x48,0xb8,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x00]
andq %rdi, %rax ## encoding: [0x48,0x21,0xf8]
ret ## encoding: [0xc3]
with this patch we can fold the immediate into the and:
andq $1, %rdi ## encoding: [0x48,0x83,0xe7,0x01]
movq %rdi, %rax ## encoding: [0x48,0x89,0xf8]
shlq $42, %rax ## encoding: [0x48,0xc1,0xe0,0x2a]
ret ## encoding: [0xc3]
It's possible to save another byte by using 'andl' instead of 'andq' but I currently see no way of doing
that without making this code even more complicated. See the TODOs in the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129990
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Frits van Bommel [Fri, 22 Apr 2011 11:36:45 +0000 (11:36 +0000)]
Comment out some unused parameter names to silence out-of-tree -Wunused warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129988
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Eric Christopher [Fri, 22 Apr 2011 06:34:01 +0000 (06:34 +0000)]
Use enums for constant values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129984
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Eric Christopher [Fri, 22 Apr 2011 04:08:58 +0000 (04:08 +0000)]
Make the file format strings a little prettier for mach-o.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129980
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Eric Christopher [Fri, 22 Apr 2011 04:06:24 +0000 (04:06 +0000)]
Add MachOObjectFile.cpp to cmake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129978
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Eric Christopher [Fri, 22 Apr 2011 03:50:50 +0000 (03:50 +0000)]
Hook in mach-o object files into Object interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129976
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Eric Christopher [Fri, 22 Apr 2011 03:50:19 +0000 (03:50 +0000)]
Add support for 64-bit object files to Path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129975
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Eric Christopher [Fri, 22 Apr 2011 03:19:48 +0000 (03:19 +0000)]
Add an ObjectFile implementation for mach-o.
Patch by Patrick Walton!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129974
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Eric Christopher [Fri, 22 Apr 2011 03:07:06 +0000 (03:07 +0000)]
80-col fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129973
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NAKAMURA Takumi [Fri, 22 Apr 2011 01:56:59 +0000 (01:56 +0000)]
include/llvm/Target/TargetAsmInfo.h: Fix a warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129972
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Evan Cheng [Fri, 22 Apr 2011 01:42:52 +0000 (01:42 +0000)]
In Thumb2 mode, lower frame indix references to:
add <rd>, sp, #<imm8>
ldr <rd>, [sp, #<imm8>]
When the offset from sp is multiple of 4 and in range of 0-1020.
This saves code size by utilizing 16-bit instructions.
rdar://
9321541
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129971
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Evan Cheng [Fri, 22 Apr 2011 01:40:20 +0000 (01:40 +0000)]
Typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129970
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Chandler Carruth [Fri, 22 Apr 2011 01:29:18 +0000 (01:29 +0000)]
Delete the other unused variable in this function. Sorry I missed this
the first time through.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129969
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Chandler Carruth [Fri, 22 Apr 2011 01:21:06 +0000 (01:21 +0000)]
Remove an unused variable from a function. This is a likely cut-paste-o.
Silences GCC warning.
I wonder why Clang doesn't warn on this...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129968
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Bill Wendling [Fri, 22 Apr 2011 01:07:09 +0000 (01:07 +0000)]
Branch folding is folding a landing pad into a regular BB.
An exception is thrown via a call to _cxa_throw, which we don't expect to
return. Therefore, the "true" part of the invoke goes to a BB that has
'unreachable' as its only instruction. This is lowered into an empty MachineBB.
The landing pad for this invoke, however, is directly after the "true" MBB.
When the empty MBB is removed, the landing pad is directly below the BB with the
invoke call. The unconditional branch is removed and then the two blocks are
merged together.
The testcase is too big for a regression test.
<rdar://problem/
9305728>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129965
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Bob Wilson [Fri, 22 Apr 2011 00:37:01 +0000 (00:37 +0000)]
Define Neon load/store intrinsics for Clang as macros instead of functions.
This is needed so the front-end can see "aligned" attributes on the type
for the pointer arguments. Radar
9311427.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129964
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Rafael Espindola [Fri, 22 Apr 2011 00:08:43 +0000 (00:08 +0000)]
Compute the size of the FDE encoding instead of hard coding it. Update
X8664_ELFTargetObjectFile::getFDEEncoding to match reality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129959
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Rafael Espindola [Thu, 21 Apr 2011 23:39:26 +0000 (23:39 +0000)]
Remove unused argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129955
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Rafael Espindola [Thu, 21 Apr 2011 23:26:40 +0000 (23:26 +0000)]
Don't pass address spaces to EmitULEB128IntValue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129953
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