40 lines
923 B
LLVM
40 lines
923 B
LLVM
; RUN: opt < %s -memcpyopt -disable-output
|
|
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
@b = common dso_local local_unnamed_addr global i32 0, align 4
|
|
@a = common dso_local local_unnamed_addr global i32 0, align 4
|
|
|
|
declare dso_local i32 @f1()
|
|
|
|
; Do not crash due to store first in BB.
|
|
define dso_local void @f2() {
|
|
for.end:
|
|
%0 = load i32, i32* @b, align 4
|
|
ret void
|
|
|
|
for.body:
|
|
store i32 %1, i32* @a, align 4
|
|
%call = call i32 @f1()
|
|
%cmp = icmp sge i32 %call, 0
|
|
%1 = load i32, i32* @b, align 4
|
|
br label %for.body
|
|
}
|
|
|
|
; Do not crash due to call not before store in BB.
|
|
define dso_local void @f3() {
|
|
for.end:
|
|
%0 = load i32, i32* @b, align 4
|
|
ret void
|
|
|
|
for.body:
|
|
%t = add i32 %t2, 1
|
|
store i32 %1, i32* @a, align 4
|
|
%call = call i32 @f1()
|
|
%cmp = icmp sge i32 %call, 0
|
|
%1 = load i32, i32* @b, align 4
|
|
%t2 = xor i32 %t, 5
|
|
br label %for.body
|
|
}
|