Johnny Chen
a96581f4f7
Disassembly of tBcc was wrongly adding 4 to the SignExtend'ed imm8:'0' immediate operand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131565 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18 20:32:41 +00:00
Chad Rosier
871f664093
Enables vararg functions that pass all arguments via registers to be optimized into tail-calls when possible.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131560 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18 19:59:50 +00:00
Eli Friedman
59f15918c2
More instcombine cleanup aimed towards improving debug line info.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131559 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18 19:57:14 +00:00
Stuart Hastings
1f2cb9824d
An imminent fix to the x86_64 byval logic will expose a flaw in the
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x86_64 sibcall logic. I've filed PR9943 for the sibcall problem, and
this patch alters the testcase to work around the flaw. When PR9943
is fixed, this patch should be reverted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131557 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18 19:19:17 +00:00
Eli Friedman
5ceb66692e
Force a triple on a couple of tests; we don't support fast-isel of ret on Win64.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131540 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18 17:16:37 +00:00
Stuart Hastings
11d26f109d
Merge pmovzx test case into existing file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131539 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18 17:02:04 +00:00
Justin Holewinski
657d1bed23
PTX: add flag to disable mad/fma selection
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Patch by Dan Bailey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131537 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18 15:42:23 +00:00
Duncan Sands
bb1695e333
Tighten up checking of the validity of casts. (1) The IR parser would
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happily accept things like "sext <2 x i32> to <999 x i64>". It would
also accept "sext <2 x i32> to i64", though the verifier would catch
that later. Fixed by having castIsValid check that vector lengths match
except when doing a bitcast. (2) When creating a cast instruction, check
that the cast is valid (this was already done when creating constexpr
casts). While there, replace getScalarSizeInBits (used to allow more
vector casts) with getPrimitiveSizeInBits in getCastOpcode and isCastable
since vector to vector casts are now handled explicitly by passing to the
element types; i.e. this bit should result in no functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131532 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18 09:21:57 +00:00
Tanya Lattner
2a8eb722c7
In r131488 I misunderstood how VREV works. It splits the vector in half and splits each half. Therefore, the real problem was that we were using a VREV64 for a 4xi16, when we should have been using a VREV32.
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Updated test case and reverted change to the PerfectShuffle Table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131529 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18 06:42:21 +00:00
Eli Friedman
ef819d0ed8
Start trying to make InstCombine preserve more debug info. The idea here is to set the debug location on the IRBuilder, which will be then right location in most cases. This should magically give many transformations debug locations, and fixing places which are missing a debug location will usually just means changing the code creating it to use the IRBuilder.
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As an example, the change to InstCombineCalls catches a common case where a call to a bitcast of a function is rewritten.
Chris, does this approach look reasonable?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131516 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18 01:28:27 +00:00
Eli Friedman
28b42afcb8
Make some of the fast-isel tests actually test fast-isel (and fix test failures).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131510 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18 00:00:10 +00:00
Stuart Hastings
ca1ef48585
X86 pmovsx/pmovzx ignore the upper half of their inputs.
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rdar://problem/6945110
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131493 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17 22:13:31 +00:00
Tanya Lattner
c81c9709ef
vrev is incorrectly defined in the perfect shuffle table. The ordering is backwards (should be 0x3210 versus 0x1032) which exposed a bug when doing a shuffle on a 4xi16. I've attached a test case.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131488 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17 20:48:40 +00:00
Galina Kistanova
416b7117b7
Move test for appropriate directory.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131477 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17 19:06:43 +00:00
Eli Friedman
19515b4e52
Add x86 fast-isel for calls returning first-class aggregates. rdar://9435872.
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This is r131438 with a couple small fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131474 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17 18:29:03 +00:00
Stuart Hastings
71753050b1
Drop lli, revise test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131452 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17 02:38:59 +00:00
Eli Friedman
c93943b6fe
Back out r131444 and r131438; they're breaking nightly tests. I'll look into
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it more tomorrow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131451 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17 02:36:59 +00:00
Eli Friedman
b70eac42e7
Fix test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131444 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17 00:39:14 +00:00
Evan Cheng
50ecb195e1
Add target triple so test doesn't fail on Windows machines.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131439 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17 00:15:58 +00:00
Eli Friedman
cdc9a20561
Add x86 fast-isel for calls returning first-class aggregates. rdar://9435872.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131438 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17 00:13:47 +00:00
Jakob Stoklund Olesen
f5497fb1b4
Teach LiveInterval::isZeroLength about null SlotIndexes.
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When instructions are deleted, they leave tombstone SlotIndex entries.
The isZeroLength method should ignore these null indexes.
This causes RABasic to sometimes spill a callee-saved register in the
abi-isel.ll test, so don't run that test with -regalloc=basic. Prioritizing
register allocation according to spill weight can cause more registers to be
used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131436 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16 23:50:05 +00:00
Eli Friedman
57f4b03621
Remove dead code. Fix associated test to use FileCheck.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131424 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16 21:28:22 +00:00
Eli Friedman
482feb33b2
Make fast-isel work correctly s/uadd.with.overflow intrinsics.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131420 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16 21:06:17 +00:00
Eli Friedman
2586b8f936
Basic fast-isel of extractvalue. Not too helpful on its own, given the IR clang generates for cases like this, but it should become more useful soon.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131417 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16 20:27:46 +00:00
Rafael Espindola
6469540adf
sets bit 0 of the function address of thumb function in .symtab
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("T is 1 if the target symbol S has type STT_FUNC and the
symbol addresses a Thumb instruction ;it is 0 otherwise."
from "ELF for the ARM Architecture" 4.7.1.2)
Patch by Koan-Sin Tan!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131406 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16 16:17:21 +00:00
Rafael Espindola
0e00c6c561
Don't do tail calls in a function that call setjmp. The stack might be
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corrupted when setjmp returns again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131399 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16 03:05:33 +00:00
Benjamin Kramer
dae3b57b91
Disable test harder.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131363 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14 19:30:39 +00:00
Stuart Hastings
47242e8680
Disable this test while I revise it. rdar://problem/9267970
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131350 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14 18:39:05 +00:00
Benjamin Kramer
10fcfb53fd
SimplifyCFG: Use ComputeMaskedBits to prune dead cases from switch instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131345 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14 15:57:25 +00:00
Stuart Hastings
67f071e697
Avoid combining GEPs that might overflow at runtime.
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rdar://problem/9267970
Patch by Julien Lerouge!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131339 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14 05:55:10 +00:00
Rafael Espindola
a3f88148e6
Don't produce a vmovntdq if we don't have AVX support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131330 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14 00:30:01 +00:00
Rafael Espindola
0cb3563363
Move test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131315 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13 21:35:17 +00:00
Rafael Espindola
8d9e1c2aa0
Move test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131314 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13 21:33:32 +00:00
Galina Kistanova
6f0b5e4a22
Move platform-dependent test to appropriate directory.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131302 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13 19:45:05 +00:00
Rafael Espindola
3fa8283744
Make codegen able to handle values of empty types. This is one way
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to fix PR9900. I will keep it open until sable is able to comment on it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131294 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13 15:18:06 +00:00
Stuart Hastings
88882247d2
Since I can't reproduce the failures from 131261, re-trying with a
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simplified version. <rdar://problem/9298790>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131274 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13 00:51:54 +00:00
Stuart Hastings
8ad145d729
Revert 131266 and 131261 due to buildbot complaints.
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rdar://problem/9298790
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131269 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13 00:15:17 +00:00
Stuart Hastings
4c576ca9db
Tweak 131261 (thumb2-cbnz.ll) to generate the intended cbnz.
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rdar://problem/9298790
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131266 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13 00:10:03 +00:00
Stuart Hastings
5adc646380
Non-fast-isel followup to 129634; correctly handle branches controlled
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by non-CMP expressions. The executable test case (129821) would test
this as well, if we had an "-O0 -disable-arm-fast-isel" LLVM-GCC
tester. Alas, the ARM assembly would be very difficult to check with
FileCheck.
The thumb2-cbnz.ll test is affected; it generates larger code (tst.w
vs. cmp #0 ), but I believe the new version is correct.
rdar://problem/9298790
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131261 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12 23:36:41 +00:00
Galina Kistanova
60bf5c3197
Correction. Use explicit target triple in the test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131252 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12 21:55:34 +00:00
Evan Cheng
7139d35165
Re-enable branchfolding common code hoisting optimization. Fixed a liveness test bug and also taught it to update liveins.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131241 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12 20:30:01 +00:00
Stuart Hastings
007cfce220
Move this test to CodeGen/Thumb. rdar://problem/9416774
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131196 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11 19:41:28 +00:00
Devang Patel
4243e67bd5
Identify end of prologue (and beginning of function body) using DW_LNS_set_prologue_end line table opcode.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131194 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11 19:22:19 +00:00
Stuart Hastings
e8b9f16a4c
Reduced test case. rdar://problem/9416774
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131191 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11 17:29:25 +00:00
Owen Anderson
18901d63bf
Fix encoding of Thumb BLX register instructions. Patch by Koan-Sin Tan.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131189 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11 17:00:48 +00:00
Stuart Hastings
de5d5ded64
And lo, I was given a testcase for 131152. rdar://problem/9416774
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131184 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11 16:00:21 +00:00
Nadav Rotem
42febc6e99
Fixes a bug in the DAGCombiner. LoadSDNodes have two values (data, chain).
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If there is a store after the load node, then there is a chain, which means
that there is another user. Thus, asking hasOneUser would fail. Instead we
ask hasNUsesOfValue on the 'data' value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131183 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11 14:40:50 +00:00
Nadav Rotem
4301222525
Add custom lowering of X86 vector SRA/SRL/SHL when the shift amount is a splat vector.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131179 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11 08:12:09 +00:00
Rafael Espindola
41cdc16e73
Revert 131172 as it is causing clang to miscompile itself. I will try
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to provide a reduced testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131176 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11 03:27:17 +00:00
Evan Cheng
7e20a574eb
Add a late optimization to BranchFolding that hoist common instruction sequences
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at the start of basic blocks to their common predecessor. It's actually quite
common (e.g. about 50 times in JM/lencod) and has shown to be a nice code size
benefit. e.g.
pushq %rax
testl %edi, %edi
jne LBB0_2
## BB#1:
xorb %al, %al
popq %rdx
ret
LBB0_2:
xorb %al, %al
callq _foo
popq %rdx
ret
=>
pushq %rax
xorb %al, %al
testl %edi, %edi
je LBB0_2
## BB#1:
callq _foo
LBB0_2:
popq %rdx
ret
rdar://9145558
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131172 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11 01:03:01 +00:00