mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
49 lines
1.6 KiB
LLVM
49 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -instcombine -S | FileCheck %s
|
|
|
|
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i1) nounwind
|
|
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind
|
|
|
|
; Same src/dest.
|
|
|
|
define void @test1(i8* %a) {
|
|
; CHECK-LABEL: @test1(
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i1 false)
|
|
ret void
|
|
}
|
|
|
|
; PR8267 - same src/dest, but volatile.
|
|
|
|
define void @test2(i8* %a) {
|
|
; CHECK-LABEL: @test2(
|
|
; CHECK-NEXT: tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[A:%.*]], i8* [[A]], i32 100, i1 true)
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i1 true)
|
|
ret void
|
|
}
|
|
|
|
; 17179869184 == 0x400000000 - make sure that doesn't get truncated to 32-bit.
|
|
|
|
define void @test3(i8* %d, i8* %s) {
|
|
; CHECK-LABEL: @test3(
|
|
; CHECK-NEXT: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* noundef nonnull align 4 dereferenceable(17179869184) [[D:%.*]], i8* noundef nonnull align 4 dereferenceable(17179869184) [[S:%.*]], i64 17179869184, i1 false)
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %d, i8* align 4 %s, i64 17179869184, i1 false)
|
|
ret void
|
|
}
|
|
|
|
@UnknownConstant = external constant i128
|
|
|
|
define void @memcpy_to_constant(i8* %src) {
|
|
; CHECK-LABEL: @memcpy_to_constant(
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%dest = bitcast i128* @UnknownConstant to i8*
|
|
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 16, i1 false)
|
|
ret void
|
|
}
|