xref: /llvm-project/llvm/test/Transforms/InstCombine/stpcpy-2.ll (revision 4ab40eca080965c65802710e39adbb78c4ce7bde)
1; Test that the stpcpy library call simplifier works correctly.
2; RUN: opt < %s -passes=instcombine -S | FileCheck %s
3;
4; This transformation requires the pointer size, as it assumes that size_t is
5; the size of a pointer.
6target 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"
7
8@hello = constant [6 x i8] c"hello\00"
9@a = common global [32 x i8] zeroinitializer, align 1
10
11declare i16 @stpcpy(ptr, ptr)
12
13define void @test_no_simplify1() {
14; CHECK-LABEL: @test_no_simplify1(
15
16
17  call i16 @stpcpy(ptr @a, ptr @hello)
18; CHECK: call i16 @stpcpy
19  ret void
20}
21