Bill Wendling
a6c3112b1f
Situations can arise when you have a function called that returns a 'void', but
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is bitcast to return a floating point value. The result of the instruction may
not be used by the program afterwards, and LLVM will happily remove all
instructions except the call. But, on some platforms, if a value is returned as
a floating point, it may need to be removed from the stack (like x87). Thus, we
can't get rid of the bitcast even if there isn't a use of the value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51134 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 22:45:20 +00:00
Devang Patel
ef3682a4fb
Simplify internalize pass. Add test case.
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Patch by Matthijs Kooijman!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51114 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 20:01:01 +00:00
Dan Gohman
d64a78c9ed
When bit-twiddling CondCode values for integer comparisons produces
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SETOEQ, is it does with (SETEQ & SETULE), map it to SETEQ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51112 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 18:17:09 +00:00
Tanya Lattner
969c9d3b39
Check if llvm-gcc is available before running tests. Patch by Matthijs Kooijman!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51108 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 16:32:44 +00:00
Duncan Sands
972378a096
Make this test pass on x86-32 linux.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51099 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 09:46:01 +00:00
Dale Johannesen
72997fedab
Fix for PR 2323, infinite loop in tail dup.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51063 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 20:06:43 +00:00
Evan Cheng
77f0b7a50a
Instead of a vector load, shuffle and then extract an element. Load the element from address with an offset.
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pshufd $1, (%rdi), %xmm0
movd %xmm0, %eax
=>
movl 4(%rdi), %eax
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51026 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 08:35:03 +00:00
Owen Anderson
6513c1bf90
Add a testcase for non-local CSE of read-only calls.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51025 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 08:17:44 +00:00
Evan Cheng
fa7fd33a26
On x86, it's safe to treat i32 load anyext as a normal i32 load. Ditto for i8 anyext load to i16.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51019 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 00:54:02 +00:00
Evan Cheng
9bfa03c6fd
Xform bitconvert(build_pair(load a, load b)) to a single load if the load locations are at the right offset from each other.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51008 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 23:04:07 +00:00
Dale Johannesen
38eb9f9ae6
New test for tail merging
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51007 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 22:59:44 +00:00
Mikhail Glushenkov
5c98d824f6
Filter option names to escape symbols not allowed as C++ identifiers.
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Makes it possible to use options with names like "Wa,".
Also fixes the -Wall option handling as a side-effect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50973 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 16:33:06 +00:00
Duncan Sands
9658a2cb3d
Testcase for PR2264.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50965 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 13:01:19 +00:00
Duncan Sands
eca2f99958
Testcase for PR2303.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50951 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-10 16:43:10 +00:00
Evan Cheng
50d9e7289b
When transforming a vector_shuffle to a load, the base address must not be an undef.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50940 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-10 06:46:49 +00:00
Evan Cheng
c81d50e0f7
Add nounwind.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50931 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-10 02:22:25 +00:00
Evan Cheng
b3e0a6d75c
If all sources of a PHI node are defined by an implicit_def, just emit an implicit_def instead of a copy.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50927 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-10 00:17:50 +00:00
Evan Cheng
23573e5be6
Add a pattern to do move the low element of a v4f32 and zero extend the rest.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50922 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09 23:37:55 +00:00
Evan Cheng
d880b97257
Handle a few more cases of folding load i64 into xmm and zero top bits.
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Note, some of the code will be moved into target independent part of DAG combiner in a subsequent patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50918 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09 21:53:03 +00:00
Evan Cheng
6c17c6bafa
Simplify test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50911 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09 19:56:32 +00:00
Chris Lattner
7d2cbd2d43
Implement PR2298. This transforms:
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~x < ~y --> y < x
-x == -y --> x == y
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50882 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09 05:19:28 +00:00
Evan Cheng
fd17f42bab
Use movq to move low half of XMM register and zero-extend the rest.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50874 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08 22:35:02 +00:00
Chris Lattner
2539e33893
More than just loads can read from memory: readonly calls like strlen
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also need to be checked for memory modifying instructions before we
can sink them. THis fixes the second half of PR2297.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50860 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08 17:37:37 +00:00
Chris Lattner
0ef546e639
Make instcombine's DSE respect loads as well as stores. It is not safe to
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delete the first store in:
store x -> p
load p
store y -> p
This is for PR2297.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50859 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08 17:20:30 +00:00
Chris Lattner
8c073c04bc
new testcase.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50841 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08 04:55:51 +00:00
Evan Cheng
7e2ff77ef0
Handle vector move / load which zero the destination register top bits (i.e. movd, movq, movss (addr), movsd (addr)) with X86 specific dag combine.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50838 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08 00:57:18 +00:00
Evan Cheng
687bcb2be0
Add nounwind.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50837 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07 22:59:08 +00:00
Evan Cheng
7ebc06bfd8
Yet another nasty spiller bug.
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%ecx = op
store %cl<kill>, (addr)
(addr) = op %al
It's not safe to unfold the last operand and eliminate store even though %cl is marked kill. It's a sub-register use which means one of its super-register(s) may be used below.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50794 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07 00:49:28 +00:00
Dan Gohman
42ac929ed9
Fix a bug in the ComputeMaskedBits logic for multiply.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50793 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07 00:35:55 +00:00
Bill Wendling
12f33baa8a
Removing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50786 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 23:56:22 +00:00
Anton Korobeynikov
70e616fa0b
Use target triple in tests, not 'realign-stack=0' option. Per request.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50778 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 23:09:29 +00:00
Owen Anderson
f092b64a49
Testcase for r50770.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50771 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 21:01:34 +00:00
Mikhail Glushenkov
2e9e0c2951
Move test files around a bit - fixes the reported number of test cases.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50761 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 18:16:20 +00:00
Mikhail Glushenkov
76b1b24dc8
Use edge weights to choose the right linker based on input language names.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50759 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 18:15:12 +00:00
Mikhail Glushenkov
978d498e40
Add a --linker command-line option, make all tests pass.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50755 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 18:13:00 +00:00
Mikhail Glushenkov
ceda1734cc
Add two (currently failing) tests.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50752 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 18:11:21 +00:00
Mikhail Glushenkov
35a85e8453
Take object file as input and handle files with the same name correctly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50749 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 18:10:20 +00:00
Mikhail Glushenkov
3c30e6c653
First small tests for llvmc2.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50734 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 17:24:54 +00:00
Duncan Sands
c8d9fe6bf9
Testcase for PR2292.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50718 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 14:56:40 +00:00
Evan Cheng
21037da713
Fix PR2287. Darwin passes mmx values in register in 64-mode, not Linux.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50716 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 07:23:50 +00:00
Dan Gohman
23e1df8b8d
Correct the value of LowBits in srem and urem handling in
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ComputeMaskedBits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50692 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 00:51:48 +00:00
Chris Lattner
8554cc2ea7
Fix a crash when threading a block that includes a MRV call result.
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DemoteRegToStack doesn't work with MRVs yet, because it relies on the
ability to load/store things.
This fixes PR2285.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 20:21:22 +00:00
Mon P Wang
63307c335a
Added addition atomic instrinsics and, or, xor, min, and max.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50663 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 19:05:59 +00:00
Chris Lattner
b61bfdb56e
no need for eh info
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50658 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 18:24:33 +00:00
Dan Gohman
a779a9899a
Add AsmPrinter support for emitting a directive to declare that
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the code being generated does not require an executable stack.
Also, add target-specific code to make use of this on Linux
on x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50634 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 00:28:39 +00:00
Owen Anderson
46bb007014
Fix PR1098 by correcting the postdominators analysis.
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Patch by Florian Brandner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50628 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-04 21:07:35 +00:00
Evan Cheng
5759f97f50
Select vector shift with non-immediate i32 shift amount operand by first moving the operand into the right register.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50619 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-04 09:15:50 +00:00
Evan Cheng
22b942aa4d
Add separate intrinsics for MMX / SSE shifts with i32 integer operands. This allow us to simplify the horribly complicated matching code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50601 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-03 00:52:09 +00:00
Chris Lattner
4d5b8ccd07
verify builtin optimization works like gcc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50594 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 22:07:34 +00:00
Dan Gohman
1d9cd50677
Fix a mistake in the computation of leading zeros for udiv.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50591 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 21:30:02 +00:00