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| ; Test that the memcpy 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* @memcpy(i8*, i8*, i32)
|
| ; Check memcpy(mem1, mem2, size) -> llvm.memcpy(mem1, mem2, size, 1).
|
| define i8* @test_simplify1(i8* %mem1, i8* %mem2, i32 %size) {
| ; CHECK-LABEL: @test_simplify1(
| %ret = call i8* @memcpy(i8* %mem1, i8* %mem2, i32 %size)
| ; CHECK: call void @llvm.memcpy
| ret i8* %ret
| ; CHECK: ret i8* %mem1
| }
|
|
