| ; Test 32-bit XORs in which the second operand is constant. |
| ; |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s |
| |
| ; Check the lowest useful XILF value. |
| define i32 @f1(i32 %a) { |
| ; CHECK-LABEL: f1: |
| ; CHECK: xilf %r2, 1 |
| ; CHECK: br %r14 |
| %xor = xor i32 %a, 1 |
| ret i32 %xor |
| } |
| |
| ; Check the high end of the signed range. |
| define i32 @f2(i32 %a) { |
| ; CHECK-LABEL: f2: |
| ; CHECK: xilf %r2, 2147483647 |
| ; CHECK: br %r14 |
| %xor = xor i32 %a, 2147483647 |
| ret i32 %xor |
| } |
| |
| ; Check the low end of the signed range, which should be treated |
| ; as a positive value. |
| define i32 @f3(i32 %a) { |
| ; CHECK-LABEL: f3: |
| ; CHECK: xilf %r2, 2147483648 |
| ; CHECK: br %r14 |
| %xor = xor i32 %a, -2147483648 |
| ret i32 %xor |
| } |
| |
| ; Check the high end of the XILF range. |
| define i32 @f4(i32 %a) { |
| ; CHECK-LABEL: f4: |
| ; CHECK: xilf %r2, 4294967295 |
| ; CHECK: br %r14 |
| %xor = xor i32 %a, 4294967295 |
| ret i32 %xor |
| } |
