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22 Commits

Author SHA1 Message Date
Reid Kleckner
0f85d54670 Add the ExceptionHandling::MSVC enumeration 
It is intended to be used for a family of personality functions that
have similar IR preparation requirements. Typically when interoperating
with MSVC personality functions, bits of functionality need to be
outlined from the main function into helper functions. There is also
usually more than one landing pad per invoke, which does not match the
LLVM IR landingpad representation.

None of this is implemented yet. This change just adds a new enum that
is active for *-windows-msvc and delegates to the EH removal preparation
pass.  No functionality change for other targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224625 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-12-19 22:19:48 +00:00
Stephen Lin
b4dc0233c9 Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. 
This was done with the following sed invocation to catch label lines demarking function boundaries:
    sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll
which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186258 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-13 20:38:47 +00:00
Evan Cheng
c3aa7c5c5a Disable expensive two-address optimizations at -O0. rdar://10453055 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144806 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-16 18:44:48 +00:00
Bill Wendling
935903191f Update more tests to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138903 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:39:05 +00:00
Chris Lattner
7eba85eb86 add missing colon, thanks peter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137306 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 16:15:10 +00:00
Chris Lattner
f4ea68fa5a fix PR10605 / rdar://9930964 by adding a pretty scary missed check. 
It's somewhat surprising anything works without this.  Before we would
compile the testcase into:

test:                                   # @test
	movl	$4, 8(%rdi)
	movl	8(%rdi), %eax
	orl	%esi, %eax
	cmpl	$32, %edx
	movl	%eax, -4(%rsp)          # 4-byte Spill
	je	.LBB0_2

now we produce:

test:                                   # @test
	movl	8(%rdi), %eax
	movl	$4, 8(%rdi)
	orl	%esi, %eax
	cmpl	$32, %edx
	movl	%eax, -4(%rsp)          # 4-byte Spill
	je	.LBB0_2



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137303 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 06:26:54 +00:00
Jakob Stoklund Olesen
5e5ed44577 Be less aggressive about hinting in RAFast. 
In particular, don't spill dirty registers only to satisfy a hint. It is
not worth it.

The attached test case provides an example where the fast allocator
would spill a register when other registers are available.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132900 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-13 03:26:46 +00:00
Bill Wendling
d336de318e As Dan pointed out, movzbl, movsbl, and friends are nicer than their alias 
(movzx/movsx) because they give more information. Revert that part of the patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129498 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 01:46:37 +00:00
Bill Wendling
c6df9883da Have the X86 back-end emit the alias instead of what's being aliased. In most 
cases, it's much nicer and more informative reading the alias.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129497 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 01:11:51 +00:00
Dan Gohman
b55d6b6a7e Fix fast-isel address mode folding to avoid folding instructions 
outside of the current basic block. This fixes PR9500, rdar://9156159.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128041 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-22 00:04:35 +00:00
NAKAMURA Takumi
64779f4b87 Relax expressions and add explicit triplets -linux and -win32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126202 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-22 07:20:02 +00:00
Chris Lattner
b99fdee325 reapply my fix for PR8961 with a tweak to properly handle 
multi-instruction sequences like calls.  Many thanks to Jakob for
finding a testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123559 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-16 02:27:38 +00:00
Chris Lattner
d357e88740 revert my fastisel patch again which apparently still gives the 
llvm-gcc-i386-linux-selfhost buildbot heartburn...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123431 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-14 06:14:33 +00:00
Chris Lattner
9e27cc8049 reapply r123414 now that the botz are calmed down and the fix is already in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123427 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-14 04:24:28 +00:00
Chris Lattner
a899d1c264 r123414 broke llvm-gcc bootstrap apparently, revert 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123422 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-14 02:07:32 +00:00
Chris Lattner
d754041493 fix PR8961 - a fast isel miscompilation where we'd insert a new instruction 
after sext's generated for addressing that got folded.  Previously we compiled
test5 into:

_test5:                                 ## @test5
## BB#0:
        movq    -8(%rsp), %rax          ## 8-byte Reload
        movq    (%rdi,%rax), %rdi
        addq    %rdx, %rdi
        movslq  %esi, %rax
        movq    %rax, -8(%rsp)          ## 8-byte Spill
        movq    %rdi, %rax
        ret

which is insane and wrong.  Now we produce:

_test5:                                 ## @test5
## BB#0:
	movslq	%esi, %rax
	movq	(%rdi,%rax), %rax
	addq	%rdx, %rax
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123414 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-14 00:01:01 +00:00
Dan Gohman
e667e01723 Use the source-order scheduler instead of the "fast" scheduler at -O0, 
because it's more likely to keep debug line information in its original
order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108496 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-16 02:01:19 +00:00
Dan Gohman
f595141525 Revert 107840 107839 107813 107804 107800 107797 107791. 
Debug info intrinsics win for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107850 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-08 01:00:56 +00:00
Dan Gohman
f423a69839 Add X86FastISel support for return statements. This entails refactoring 
a bunch of stuff, to allow the target-independent calling convention
logic to be employed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107800 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-07 18:32:53 +00:00
Dan Gohman
5c87bf64d6 Teach X86FastISel to fold constant offsets and scaled indices in 
the same address.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107373 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-01 02:27:15 +00:00
Chris Lattner
dffb6e5aee fix PR4984 by ensuring that fastisel adds properly sign extended GEP displacement 
values to machineinstrs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81886 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-15 18:27:02 +00:00
Chris Lattner
371b8fc41c rename test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81884 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-15 18:23:37 +00:00