forked from OSchip/llvm-project
18 lines
588 B
LLVM
18 lines
588 B
LLVM
; Test that the memmove library call simplifier works correctly.
|
|
;
|
|
; RUN: opt < %s -instcombine -S | FileCheck %s
|
|
|
|
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
|
|
|
|
declare i8* @memmove(i8*, i8*, i32)
|
|
|
|
; Check memmove(mem1, mem2, size) -> llvm.memmove(mem1, mem2, size, 1).
|
|
|
|
define i8* @test_simplify1(i8* %mem1, i8* %mem2, i32 %size) {
|
|
; CHECK: @test_simplify1
|
|
%ret = call i8* @memmove(i8* %mem1, i8* %mem2, i32 %size)
|
|
; CHECK: call void @llvm.memmove
|
|
ret i8* %ret
|
|
; CHECK: ret i8* %mem1
|
|
}
|