| ; Test of subtraction that involves a constant as the first operand |
| ; |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s |
| |
| ; Check highest 16-bit signed int immediate value. |
| define i64 @f1(i64 %a) { |
| ; CHECK-LABEL: f1: |
| ; CHECK: lghi %r0, 32767 |
| ; CHECK: sgrk %r2, %r0, %r2 |
| ; CHECK: br %r14 |
| %sub = sub i64 32767, %a |
| ret i64 %sub |
| } |
| ; Check highest 32-bit signed int immediate value. |
| define i64 @f2(i64 %a) { |
| ; CHECK-LABEL: f2: |
| ; CHECK: lgfi %r0, 2147483647 |
| ; CHECK: sgrk %r2, %r0, %r2 |
| ; CHECK: br %r14 |
| %sub = sub i64 2147483647, %a |
| ret i64 %sub |
| } |
