Chris Lattner b053fc1c92 fold comparisons of gep'd alloca points with null to false, ... implementing PR12013. We now compile the testcase to: __Z4testv: ## @_Z4testv ## BB#0: ## %_ZN4llvm15SmallVectorImplIiE9push_backERKi.exit pushq %rbx subq $64, %rsp leaq 32(%rsp), %rbx movq %rbx, (%rsp) leaq 64(%rsp), %rax movq %rax, 16(%rsp) movl $1, 32(%rsp) leaq 36(%rsp), %rax movq %rax, 8(%rsp) leaq (%rsp), %rdi callq __Z1gRN4llvm11SmallVectorIiLj8EEE movq (%rsp), %rdi cmpq %rbx, %rdi je LBB0_2 ## BB#1: callq _free LBB0_2: ## %_ZN4llvm11SmallVectorIiLj8EED1Ev.exit addq $64, %rsp popq %rbx ret instead of: __Z4testv: ## @_Z4testv ## BB#0: pushq %rbx subq $64, %rsp xorl %eax, %eax leaq (%rsp), %rbx addq $32, %rbx movq %rbx, (%rsp) movq %rbx, 8(%rsp) leaq 64(%rsp), %rcx movq %rcx, 16(%rsp) je LBB0_2 ## BB#1: movl $1, 32(%rsp) movq %rbx, %rax LBB0_2: ## %_ZN4llvm15SmallVectorImplIiE9push_backERKi.exit addq $4, %rax movq %rax, 8(%rsp) leaq (%rsp), %rdi callq __Z1gRN4llvm11SmallVectorIiLj8EEE movq (%rsp), %rdi cmpq %rbx, %rdi je LBB0_4 ## BB#3: callq _free LBB0_4: ## %_ZN4llvm11SmallVectorIiLj8EED1Ev.exit addq $64, %rsp popq %rbx ret This doesn't shrink clang noticably though. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150944 91177308-0d34-0410-b5e6-96231b3b80d8		2012-02-20 00:42:49 +00:00
..
2010-12-20-Boolean.ll
2010-12-20-Distribute.ll
2011-01-14-Thread.ll
2011-02-01-Vector.ll
2011-09-05-InsertExtractValue.ll
2011-10-27-BinOpCrash.ll
2011-11-23-MaskedBitsCrash.ll	Fix a crash in which a multiplication was being reported as being both negative	2011-11-23 16:26:47 +00:00
AndOrXor.ll
compare.ll	fold comparisons of gep'd alloca points with null to false,	2012-02-20 00:42:49 +00:00
exact-nsw-nuw.ll
fdiv.ll	Move InstCombine's knowledge of fdiv to SimplifyInstruction().	2011-01-29 15:26:31 +00:00
lit.local.cfg	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
maxmin.ll
reassociate.ll
rem.ll
undef.ll
vector_gep.ll	Add support for vectors of pointers.	2011-12-05 06:29:09 +00:00