Chris Lattner
681ccf40d7
rename test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112234 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26 22:20:47 +00:00
Chris Lattner
26dbe7ec18
optimize "integer extraction out of the middle of a vector" as produced
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by SRoA. This is part of rdar://7892780, but needs another xform to
expose this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112232 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26 22:14:59 +00:00
Chris Lattner
e5a1426174
optimize bitcast(trunc(bitcast(x))) where the result is a float and 'x'
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is a vector to be a vector element extraction. This allows clang to
compile:
struct S { float A, B, C, D; };
float foo(struct S A) { return A.A + A.B+A.C+A.D; }
into:
_foo: ## @foo
## BB#0: ## %entry
movd %xmm0, %rax
shrq $32, %rax
movd %eax, %xmm2
addss %xmm0, %xmm2
movapd %xmm1, %xmm3
addss %xmm2, %xmm3
movd %xmm1, %rax
shrq $32, %rax
movd %eax, %xmm0
addss %xmm3, %xmm0
ret
instead of:
_foo: ## @foo
## BB#0: ## %entry
movd %xmm0, %rax
movd %eax, %xmm0
shrq $32, %rax
movd %eax, %xmm2
addss %xmm0, %xmm2
movd %xmm1, %rax
movd %eax, %xmm1
addss %xmm2, %xmm1
shrq $32, %rax
movd %eax, %xmm0
addss %xmm1, %xmm0
ret
... eliminating half of the horribleness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112227 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26 21:55:42 +00:00
Chris Lattner
a6140a1444
filecheckize
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112225 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26 21:51:41 +00:00
Chris Lattner
5333459a1e
rename test
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112224 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26 21:50:56 +00:00
Owen Anderson
a4cba04a03
Re-apply r111568 with a fix for the clang self-host.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111665 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20 18:24:43 +00:00
Owen Anderson
7c73b8b180
Previous revert failed to remove this file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111582 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-19 23:45:15 +00:00
Owen Anderson
45c3b65eb7
Revert r111568 to unbreak clang self-host.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111571 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-19 23:25:16 +00:00
Owen Anderson
9419cab4c3
When a set of bitmask operations, typically from a bitfield initialization, only modifies the low bytes of a value,
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we can narrow the store to only over-write the affected bytes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111568 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-19 22:15:40 +00:00
Eric Christopher
68c23f8616
Temporarily revert r110987 as it's causing some miscompares in
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vector heavy code. I'll re-enable when we've tracked down the problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111318 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 22:55:27 +00:00
Nate Begeman
7f1f4089a1
Reapply this transformation now that it is passing the external test which it previously failed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110987 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 00:17:53 +00:00
Eric Christopher
7486278900
Temporarily revert 110737 and 110734, they were causing failures
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in an external testsuite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110905 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-12 07:01:22 +00:00
Nate Begeman
e32ea923de
Add test for recent instcombine vector shuffle enhancement
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110737 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-10 21:58:00 +00:00
Eli Friedman
4fffb345ed
PR7853: fix a silly mistake introduced in r101899, and add a test to make sure
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it doesn't regress again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110597 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-09 20:49:43 +00:00
Dan Gohman
0fd353376b
Make instcombine set explicit alignments on load or store
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instructions with alignment 0, so that subsequent passes don't
need to bother checking the TargetData ABI size manually.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110128 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03 18:20:32 +00:00
Owen Anderson
61378363b7
Re-apply the infamous r108614, with a fix pointed out by Dirk Steinke.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110036 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02 09:32:13 +00:00
Daniel Dunbar
10b173a1e7
Speculatively revert r108614, "Another attempt at getting the clang self-host to
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like my instcombine patch.", in an attempt to fix Clang i386 bootstrap.
- Also PR7719.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109953 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-31 19:51:11 +00:00
Owen Anderson
aa52fd10ab
Testcase for r108687.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108689 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-19 08:14:26 +00:00
Owen Anderson
7e3012c345
Another attempt at getting the clang self-host to like my instcombine patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108614 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-17 06:56:35 +00:00
Eric Christopher
de309a8b52
Also revert 108422, it's causing some test failures.
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Working on testcases for Owen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108494 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 01:36:12 +00:00
Owen Anderson
96fe621e07
Reapply r108378, with bugfixes, testcase, and improved comment formatting.
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This now passes LIT, nighty test, and llvm-gcc bootstrap on my machine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108422 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 15:00:23 +00:00
Chris Lattner
07c9b64719
revert r108320, I see the failures now...
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108322 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-14 06:16:35 +00:00
Chris Lattner
7e185af930
reapply benjamin's instcombine patch, I don't see anything wrong with it and can't repro any problems with a manual self-host.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108320 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-14 05:59:13 +00:00
Benjamin Kramer
c9fe6374b7
Nope, still breaks the release selfhost bots :(
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108153 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 16:38:48 +00:00
Benjamin Kramer
8fd437c43f
Reapply the "or" half of r108136, which seems to be less problematic.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108152 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 16:15:48 +00:00
Benjamin Kramer
e2d07b5208
Revert r108141 again, sigh.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108148 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 14:42:04 +00:00
Benjamin Kramer
98a8206e58
Reapply 108136 with an ugly pasto fixed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108141 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 13:44:00 +00:00
Benjamin Kramer
0cc4ed1ca5
Revert r108136 until I figure out why it broke selfhost.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108139 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 12:35:49 +00:00
Benjamin Kramer
4fc719e607
instcombine: fold (x & y) | (~x & z) and (x & y) ^ (~x & z) into ((y ^ z) & x) ^ z which is one instruction shorter. (PR6773)
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before:
%and = and i32 %y, %x
%neg = xor i32 %x, -1
%and4 = and i32 %z, %neg
%xor = xor i32 %and4, %and
after:
%xor1 = xor i32 %z, %y
%and2 = and i32 %xor1, %x
%xor = xor i32 %and2, %z
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108136 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 11:54:45 +00:00
Chris Lattner
dfd3626b47
fix PR7311 by avoiding breaking casts when a bitcast from scalar->vector
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is involved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108117 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 01:19:22 +00:00
Chris Lattner
eae2895120
fix PR7429, a crash turning a load from a string into a float.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108113 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 00:22:51 +00:00
Chris Lattner
ddef83536c
convert to filechecconvert to filecheckk
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108112 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 00:21:10 +00:00
Chris Lattner
243a73d0e6
merge two tests.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108111 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 00:19:47 +00:00
Benjamin Kramer
1db071f0da
Teach instcombine to transform
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(X >s -1) ? C1 : C2 and (X <s 0) ? C2 : C1
into ((X >>s 31) & (C2 - C1)) + C1, avoiding the conditional.
This optimization could be extended to take non-const C1 and C2 but we better
stay conservative to avoid code size bloat for now.
for
int sel(int n) {
return n >= 0 ? 60 : 100;
}
we now generate
sarl $31, %edi
andl $40, %edi
leal 60(%rdi), %eax
instead of
testl %edi, %edi
movl $60, %ecx
movl $100, %eax
cmovnsl %ecx, %eax
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107866 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 11:39:10 +00:00
Dan Gohman
0dd3549edc
Constant fold x == undef to undef.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107074 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-28 21:30:07 +00:00
Rafael Espindola
1e81966626
Remove arm_apcscc from the test files. It is the default and doing this
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matches what llvm-gcc and clang now produce.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106221 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-17 15:18:27 +00:00
Dan Gohman
05d6253727
Teach instcombine to promote alloca array sizes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104945 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 15:09:00 +00:00
Dan Gohman
8496d50412
Add a testcase for getelementptr index promotion.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104944 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 15:07:59 +00:00
Duncan Sands
1d9b973fd7
Teach instCombine to remove malloc+free if malloc's only uses are comparisons
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to null. Patch by Matti Niemenmaa.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104871 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27 19:09:06 +00:00
Chris Lattner
6745191070
Teach instcombine to transform a bitcast/(zext|trunc)/bitcast sequence
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with a vector input and output into a shuffle vector. This sort of
sequence happens when the input code stores with one type and reloads
with another type and then SROA promotes to i96 integers, which make
everyone sad.
This fixes rdar://7896024
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103354 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-08 21:50:26 +00:00
Nick Lewycky
a370a44a76
Fix declarations in a few more tests.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101676 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17 21:29:25 +00:00
Eric Christopher
67a71b5306
Verify function prototypes before trying to optimize functions. We also
...
need TargetData, just return false if we don't have it.
Update testcases accordingly.
Fixes PR6807.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101011 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12 04:48:00 +00:00
Dan Gohman
29e13e0c18
Print empty structs as {} rather than { }.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100787 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08 18:03:05 +00:00
Chris Lattner
d2075586c8
add newlines at the end of files.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100705 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07 22:53:17 +00:00
Mon P Wang
20adc9dc46
Reapply address space patch after fixing an issue in MemCopyOptimizer.
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Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100304 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-04 03:10:48 +00:00
Mon P Wang
e754d3fb85
Revert r100191 since it breaks objc in clang
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100199 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 18:43:02 +00:00
Mon P Wang
e33c848fa4
Reapply address space patch after fixing an issue in MemCopyOptimizer.
...
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100191 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 18:04:15 +00:00
Bob Wilson
100f090add
Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99948 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30 22:27:04 +00:00
Mon P Wang
808bab0169
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
...
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update of langref will occur in a subsequent checkin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99928 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30 20:55:56 +00:00
Evan Cheng
9d8f002d8f
Fix an incorrect logic causing instcombine to miss some _chk -> non-chk transformations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99263 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23 06:06:09 +00:00