1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2 ;RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=slow-incdec | FileCheck %s 3 4 @var_21 = external constant i32, align 4 5 @var_29 = external constant i8, align 1 6 @var_390 = external global i32, align 4 7 @var_11 = external constant i8, align 1 8 @var_370 = external global i8, align 1 9 10 ; Function Attrs: noinline nounwind optnone uwtable 11 define void @_Z3foov() { 12 ; CHECK-LABEL: _Z3foov: 13 ; CHECK: # %bb.0: # %entry 14 ; CHECK-NEXT: movsbl {{.*}}(%rip), %eax 15 ; CHECK-NEXT: negl %eax 16 ; CHECK-NEXT: cmpl %eax, {{.*}}(%rip) 17 ; CHECK-NEXT: setb %al 18 ; CHECK-NEXT: xorl %ecx, %ecx 19 ; CHECK-NEXT: addb $-1, %al 20 ; CHECK-NEXT: sete %cl 21 ; CHECK-NEXT: movl %ecx, {{.*}}(%rip) 22 ; CHECK-NEXT: movb {{.*}}(%rip), %al 23 ; CHECK-NEXT: movb %al, {{.*}}(%rip) 24 ; CHECK-NEXT: retq 25 entry: 26 %0 = load i32, i32* @var_21, align 4 27 %1 = load i8, i8* @var_29, align 1 28 %conv = sext i8 %1 to i32 29 %sub = sub nsw i32 0, %conv 30 %cmp = icmp ult i32 %0, %sub 31 %conv1 = zext i1 %cmp to i32 32 %add = add nsw i32 %conv1, -1 33 %conv2 = trunc i32 %add to i8 34 %tobool = icmp ne i8 %conv2, 0 35 %lnot = xor i1 %tobool, true 36 %conv3 = zext i1 %lnot to i32 37 store i32 %conv3, i32* @var_390, align 4 38 %2 = load i8, i8* @var_11, align 1 39 %conv4 = sext i8 %2 to i16 40 %conv5 = trunc i16 %conv4 to i8 41 store i8 %conv5, i8* @var_370, align 1 42 ret void 43 } 44
