42 lines
1.4 KiB
LLVM
42 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
;RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=slow-incdec | FileCheck %s
|
|
|
|
@var_21 = external dso_local constant i32, align 4
|
|
@var_29 = external dso_local constant i8, align 1
|
|
@var_390 = external dso_local global i32, align 4
|
|
@var_11 = external dso_local constant i8, align 1
|
|
@var_370 = external dso_local global i8, align 1
|
|
|
|
; Function Attrs: noinline nounwind optnone uwtable
|
|
define void @_Z3foov() {
|
|
; CHECK-LABEL: _Z3foov:
|
|
; CHECK: # %bb.0: # %entry
|
|
; CHECK-NEXT: movsbl {{.*}}(%rip), %eax
|
|
; CHECK-NEXT: negl %eax
|
|
; CHECK-NEXT: xorl %ecx, %ecx
|
|
; CHECK-NEXT: cmpl %eax, {{.*}}(%rip)
|
|
; CHECK-NEXT: setb %cl
|
|
; CHECK-NEXT: movl %ecx, {{.*}}(%rip)
|
|
; CHECK-NEXT: movb {{.*}}(%rip), %al
|
|
; CHECK-NEXT: movb %al, {{.*}}(%rip)
|
|
; CHECK-NEXT: retq
|
|
entry:
|
|
%0 = load i32, i32* @var_21, align 4
|
|
%1 = load i8, i8* @var_29, align 1
|
|
%conv = sext i8 %1 to i32
|
|
%sub = sub nsw i32 0, %conv
|
|
%cmp = icmp ult i32 %0, %sub
|
|
%conv1 = zext i1 %cmp to i32
|
|
%add = add nsw i32 %conv1, -1
|
|
%conv2 = trunc i32 %add to i8
|
|
%tobool = icmp ne i8 %conv2, 0
|
|
%lnot = xor i1 %tobool, true
|
|
%conv3 = zext i1 %lnot to i32
|
|
store i32 %conv3, i32* @var_390, align 4
|
|
%2 = load i8, i8* @var_11, align 1
|
|
%conv4 = sext i8 %2 to i16
|
|
%conv5 = trunc i16 %conv4 to i8
|
|
store i8 %conv5, i8* @var_370, align 1
|
|
ret void
|
|
}
|