https://llvm.org/bugs/show_bug.cgi?id=25128
Bug ID: 25128
Summary: ISelLowering ignores -fno-builtin-memset
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: Common Code Generator Code
Assignee: unassignedb...@nondot.org
Reporter: mcros...@codeaurora.org
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
more memset.c
void *test_memset(void *s) {
return memset(s, 0, 16);
}
tranquillien{3286}> clang-aarch64-x -S -o - -fno-builtin -w -O3 memset.c
test_memset: // @test_memset
// BB#0: // %entry
stp x29, x30, [sp, #-16]!
mov x29, sp
mov w1, wzr
orr w2, wzr, #0x10
bl memset
sxtw x0, w0
ldp x29, x30, [sp], #16
ret
tranquillien{3287}> clang-aarch64-x -S -o - -fno-builtin-memset -w -O3 memset.c
test_memset: // @test_memset
// BB#0: // %entry
stp xzr, xzr, [x0]
ret
.ident "clang version 3.8.0 (trunk 249722) (llvm/trunk 249724)"
.section ".note.GNU-stack","",@progbits
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