| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | Add more triples after r261235 | Hans Wennborg | 2016-02-18 | 1 | -1/+1 |
| | | | | | | | | Since the behaviour is now different between Darwin and non-Darwin, more triples are needed :-/ llvm-svn: 261238 | ||||
| * | [X86] Don't zero/sign-extend i1, i8, or i16 return values to 32 bits (PR22532) | Hans Wennborg | 2016-02-08 | 1 | -1/+0 |
| | | | | | | | | | | | | | | | | | | | | | This matches GCC and MSVC's behaviour, and saves on code size. We were already not extending i1 return values on x86_64 after r127766. This takes that patch further by applying it to x86 target as well, and also for i8 and i16. The ABI docs have been unclear about the required behaviour here. The new i386 psABI [1] clearly states (Table 2.4, page 14) that i1, i8, and i16 return vales do not need to be extended beyond 8 bits. The x86_64 ABI doc is being updated to say the same [2]. Differential Revision: http://reviews.llvm.org/D16907 [1]. https://01.org/sites/default/files/file_attach/intel386-psabi-1.0.pdf [2]. https://groups.google.com/d/msg/x86-64-abi/E8O33onbnGQ/_RFWw_ixDQAJ llvm-svn: 260133 | ||||
| * | Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to ↵ | Stephen Lin | 2013-07-14 | 1 | -1/+1 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | function definitions for more informative error messages. No functionality change and all updated tests passed locally. This update was done with the following bash script: find test/CodeGen -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc.*debug" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC: *\$/;\1\2-LABEL:\3$FUNC:/g" $TEMP done sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP mv $TEMP $NAME fi done llvm-svn: 186280 | ||||
| * | Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier ↵ | Stephen Lin | 2013-07-13 | 1 | -2/+2 |
| | | | | | | | | | | | 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. llvm-svn: 186258 | ||||
| * | manually upgrade a bunch of tests to modern syntax, and remove some that | Chris Lattner | 2011-06-17 | 1 | -1/+1 |
| | | | | | | | are either unreduced or only test old syntax. llvm-svn: 133228 | ||||
| * | Implement mulo x, 2 -> addo x, x in DAGCombiner. | Benjamin Kramer | 2011-05-21 | 1 | -0/+24 |
| | | | | | llvm-svn: 131800 | ||||
| * | As Dan pointed out, movzbl, movsbl, and friends are nicer than their alias | Bill Wendling | 2011-04-14 | 1 | -1/+1 |
| | | | | | | | (movzx/movsx) because they give more information. Revert that part of the patch. llvm-svn: 129498 | ||||
| * | Have the X86 back-end emit the alias instead of what's being aliased. In most | Bill Wendling | 2011-04-14 | 1 | -1/+1 |
| | | | | | | | cases, it's much nicer and more informative reading the alias. llvm-svn: 129497 | ||||
| * | it turns out that when ".with.overflow" intrinsics were added to the X86 | Chris Lattner | 2010-12-05 | 1 | -1/+7 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | backend that they were all implemented except umul. This one fell back to the default implementation that did a hi/lo multiply and compared the top. Fix this to check the overflow flag that the 'mul' instruction sets, so we can avoid an explicit test. Now we compile: void *func(long count) { return new int[count]; } into: __Z4funcl: ## @_Z4funcl movl $4, %ecx ## encoding: [0xb9,0x04,0x00,0x00,0x00] movq %rdi, %rax ## encoding: [0x48,0x89,0xf8] mulq %rcx ## encoding: [0x48,0xf7,0xe1] seto %cl ## encoding: [0x0f,0x90,0xc1] testb %cl, %cl ## encoding: [0x84,0xc9] movq $-1, %rdi ## encoding: [0x48,0xc7,0xc7,0xff,0xff,0xff,0xff] cmoveq %rax, %rdi ## encoding: [0x48,0x0f,0x44,0xf8] jmp __Znam ## TAILCALL instead of: __Z4funcl: ## @_Z4funcl movl $4, %ecx ## encoding: [0xb9,0x04,0x00,0x00,0x00] movq %rdi, %rax ## encoding: [0x48,0x89,0xf8] mulq %rcx ## encoding: [0x48,0xf7,0xe1] testq %rdx, %rdx ## encoding: [0x48,0x85,0xd2] movq $-1, %rdi ## encoding: [0x48,0xc7,0xc7,0xff,0xff,0xff,0xff] cmoveq %rax, %rdi ## encoding: [0x48,0x0f,0x44,0xf8] jmp __Znam ## TAILCALL Other than the silly seto+test, this is using the o bit directly, so it's going in the right direction. llvm-svn: 120935 | ||||
| * | Eliminate more uses of llvm-as and llvm-dis. | Dan Gohman | 2009-09-08 | 1 | -1/+1 |
| | | | | | llvm-svn: 81290 | ||||
| * | Add some generic expansion logic for SMULO and UMULO. Fixes UMULO | Eli Friedman | 2009-06-16 | 1 | -0/+8 |
| support for x86, and UMULO/SMULO for many architectures, including PPC (PR4201), ARM, and Cell. The resulting expansion isn't perfect, but it's not bad. llvm-svn: 73477 | |||||
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