blob: 12c68965b35cd60f855e12d8466437260173c624 [file] [log] [blame]
; 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 that memcpy functions with the wrong prototype (doesn't return a pointer) aren't simplified.
define i8 @test_no_simplify1(i8* %mem1, i8* %mem2, i32 %size) {
; CHECK-LABEL: @test_no_simplify1(
; CHECK-NEXT: [[RET:%.*]] = call i8 @memcpy(i8* %mem1, i8* %mem2, i32 %size)
; CHECK-NEXT: ret i8 [[RET]]
%ret = call i8 @memcpy(i8* %mem1, i8* %mem2, i32 %size)
ret i8 %ret