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llvm-project/llvm/test/CodeGen/X86/memset-3.ll

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Correctly lower memset / memcpy of undef. It should be a nop. PR6767. llvm-svn: 100208
2010-04-03 03:36:14 +08:00
; RUN: llc -mtriple=i386-apple-darwin < %s | not grep memset
; PR6767
define void @t() nounwind ssp {
entry:
%buf = alloca [512 x i8], align 1
%ptr = getelementptr inbounds [512 x i8]* %buf, i32 0, i32 0
rip out a ton of intrinsic modernization logic from AutoUpgrade.cpp, which is for pre-2.9 bitcode files. We keep x86 unaligned loads, movnt, crc32, and the target indep prefetch change. As usual, updating the testsuite is a PITA. llvm-svn: 133337
2011-06-18 14:05:24 +08:00
call void @llvm.memset.p0i8.i32(i8* %ptr, i8 undef, i32 512, i32 1, i1 false)
Correctly lower memset / memcpy of undef. It should be a nop. PR6767. llvm-svn: 100208
2010-04-03 03:36:14 +08:00
unreachable
}
rip out a ton of intrinsic modernization logic from AutoUpgrade.cpp, which is for pre-2.9 bitcode files. We keep x86 unaligned loads, movnt, crc32, and the target indep prefetch change. As usual, updating the testsuite is a PITA. llvm-svn: 133337
2011-06-18 14:05:24 +08:00
declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) nounwind