forked from OSchip/llvm-project
25 lines
826 B
LLVM
25 lines
826 B
LLVM
|
; 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)
|