You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
1.3 KiB
47 lines
1.3 KiB
4 months ago
|
; RUN: opt < %s -basic-aa -inline -instcombine -reassociate -dse -disable-output
|
||
|
|
; PR12245
|
||
|
|
|
||
|
|
@a = common global i32 0, align 4
|
||
|
|
@d = common global i32 0, align 4
|
||
|
|
|
||
|
|
define i32 @fn2() nounwind uwtable ssp {
|
||
|
|
entry:
|
||
|
|
%0 = load i32, i32* @a, align 4
|
||
|
|
%dec = add nsw i32 %0, -1
|
||
|
|
store i32 %dec, i32* @a, align 4
|
||
|
|
%1 = load i32, i32* @d, align 4
|
||
|
|
%sub = sub nsw i32 %dec, %1
|
||
|
|
store i32 %sub, i32* @d, align 4
|
||
|
|
%2 = load i32, i32* @a, align 4
|
||
|
|
%dec1 = add nsw i32 %2, -1
|
||
|
|
store i32 %dec1, i32* @a, align 4
|
||
|
|
%3 = load i32, i32* @d, align 4
|
||
|
|
%sub2 = sub nsw i32 %dec1, %3
|
||
|
|
store i32 %sub2, i32* @d, align 4
|
||
|
|
%4 = load i32, i32* @a, align 4
|
||
|
|
%dec3 = add nsw i32 %4, -1
|
||
|
|
store i32 %dec3, i32* @a, align 4
|
||
|
|
%5 = load i32, i32* @d, align 4
|
||
|
|
%sub4 = sub nsw i32 %dec3, %5
|
||
|
|
store i32 %sub4, i32* @d, align 4
|
||
|
|
%6 = load i32, i32* @a, align 4
|
||
|
|
%dec5 = add nsw i32 %6, -1
|
||
|
|
store i32 %dec5, i32* @a, align 4
|
||
|
|
%7 = load i32, i32* @d, align 4
|
||
|
|
%sub6 = sub nsw i32 %dec5, %7
|
||
|
|
store i32 %sub6, i32* @d, align 4
|
||
|
|
%8 = load i32, i32* @a, align 4
|
||
|
|
%dec7 = add nsw i32 %8, -1
|
||
|
|
store i32 %dec7, i32* @a, align 4
|
||
|
|
%9 = load i32, i32* @d, align 4
|
||
|
|
%sub8 = sub nsw i32 %dec7, %9
|
||
|
|
store i32 %sub8, i32* @d, align 4
|
||
|
|
ret i32 0
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @fn1() nounwind uwtable ssp {
|
||
|
|
entry:
|
||
|
|
%call = call i32 @fn2()
|
||
|
|
ret i32 %call
|
||
|
|
}
|