| ; Test that the strcpy library call simplifier works correctly. |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| ; |
| ; This transformation requires the pointer size, as it assumes that size_t is |
| ; the size of a pointer. |
| 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-n8:16:32" |
| |
| @hello = constant [6 x i8] c"hello\00" |
| @a = common global [32 x i8] zeroinitializer, align 1 |
| |
| declare i16* @strcpy(i8*, i8*) |
| |
| define void @test_no_simplify1() { |
| ; CHECK-LABEL: @test_no_simplify1( |
| |
| %dst = getelementptr [32 x i8], [32 x i8]* @a, i32 0, i32 0 |
| %src = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0 |
| |
| call i16* @strcpy(i8* %dst, i8* %src) |
| ; CHECK: call i16* @strcpy |
| ret void |
| } |
