41 lines
1.6 KiB
LLVM
41 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=core2 | FileCheck %s
|
|
|
|
declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i1) nounwind
|
|
declare void @llvm.memset.inline.p0.i64(ptr nocapture, i8, i64, i1) nounwind
|
|
|
|
define void @test1(ptr %a, i8 %value) nounwind {
|
|
; CHECK-LABEL: test1:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: # kill: def $esi killed $esi def $rsi
|
|
; CHECK-NEXT: movzbl %sil, %eax
|
|
; CHECK-NEXT: movabsq $72340172838076673, %rcx # imm = 0x101010101010101
|
|
; CHECK-NEXT: imulq %rax, %rcx
|
|
; CHECK-NEXT: movq %rcx, (%rdi)
|
|
; CHECK-NEXT: retq
|
|
tail call void @llvm.memset.inline.p0.i64(ptr %a, i8 %value, i64 8, i1 0)
|
|
ret void
|
|
}
|
|
|
|
define void @regular_memset_calls_external_function(ptr %a, i8 %value) nounwind {
|
|
; CHECK-LABEL: regular_memset_calls_external_function:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: movl $1024, %edx # imm = 0x400
|
|
; CHECK-NEXT: jmp memset@PLT # TAILCALL
|
|
tail call void @llvm.memset.p0.i64(ptr %a, i8 %value, i64 1024, i1 0)
|
|
ret void
|
|
}
|
|
|
|
define void @inlined_set_doesnt_call_external_function(ptr %a, i8 %value) nounwind {
|
|
; CHECK-LABEL: inlined_set_doesnt_call_external_function:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: # kill: def $esi killed $esi def $rsi
|
|
; CHECK-NEXT: movzbl %sil, %ecx
|
|
; CHECK-NEXT: movabsq $72340172838076673, %rax # imm = 0x101010101010101
|
|
; CHECK-NEXT: imulq %rcx, %rax
|
|
; CHECK-NEXT: movq %rax, 1016(%rdi)
|
|
; CHECK-NEXT: movq %rax, 1008(%rdi)
|
|
tail call void @llvm.memset.inline.p0.i64(ptr %a, i8 %value, i64 1024, i1 0)
|
|
ret void
|
|
}
|