1 ; Test that lib call simplification doesn't simplify __memcpy_chk calls 2 ; with the wrong prototype. 3 ; 4 ; RUN: opt < %s -instcombine -S | FileCheck %s 5 6 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" 7 8 %struct.T1 = type { [100 x i32], [100 x i32], [1024 x i8] } 9 %struct.T2 = type { [100 x i32], [100 x i32], [1024 x i8] } 10 11 @t1 = common global %struct.T1 zeroinitializer 12 @t2 = common global %struct.T2 zeroinitializer 13 14 define void @test_no_simplify() { 15 ; CHECK-LABEL: @test_no_simplify( 16 %dst = bitcast %struct.T1* @t1 to i8* 17 %src = bitcast %struct.T2* @t2 to i8* 18 19 ; CHECK-NEXT: call i8* @__memcpy_chk 20 call i8* @__memcpy_chk(i8* %dst, i8* %src, i64 1824) 21 ret void 22 } 23 24 declare i8* @__memcpy_chk(i8*, i8*, i64) 25
