| ; Test that lib call simplification doesn't simplify __memcpy_chk calls |
| ; with the wrong prototype. |
| ; |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| |
| %struct.T1 = type { [100 x i32], [100 x i32], [1024 x i8] } |
| %struct.T2 = type { [100 x i32], [100 x i32], [1024 x i8] } |
| |
| @t1 = common global %struct.T1 zeroinitializer |
| @t2 = common global %struct.T2 zeroinitializer |
| |
| define void @test_no_simplify() { |
| ; CHECK-LABEL: @test_no_simplify( |
| %dst = bitcast %struct.T1* @t1 to i8* |
| %src = bitcast %struct.T2* @t2 to i8* |
| |
| ; CHECK-NEXT: call i8* @__memcpy_chk |
| call i8* @__memcpy_chk(i8* %dst, i8* %src, i64 1824) |
| ret void |
| } |
| |
| declare i8* @__memcpy_chk(i8*, i8*, i64) |
