26 lines
966 B
LLVM
26 lines
966 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -instcombine -S | FileCheck %s
|
|
|
|
declare void @bcopy(i8* nocapture readonly, i8* nocapture, i32)
|
|
|
|
define void @bcopy_memmove(i8* nocapture readonly %a, i8* nocapture %b) {
|
|
; CHECK-LABEL: @bcopy_memmove(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = bitcast i8* [[A:%.*]] to i64*
|
|
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i8* [[B:%.*]] to i64*
|
|
; CHECK-NEXT: [[TMP3:%.*]] = load i64, i64* [[TMP1]], align 1
|
|
; CHECK-NEXT: store i64 [[TMP3]], i64* [[TMP2]], align 1
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
tail call void @bcopy(i8* %a, i8* %b, i32 8)
|
|
ret void
|
|
}
|
|
|
|
define void @bcopy_memmove2(i8* nocapture readonly %a, i8* nocapture %b, i32 %len) {
|
|
; CHECK-LABEL: @bcopy_memmove2(
|
|
; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i32(i8* align 1 [[B:%.*]], i8* align 1 [[A:%.*]], i32 [[LEN:%.*]], i1 false)
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
tail call void @bcopy(i8* %a, i8* %b, i32 %len)
|
|
ret void
|
|
}
|