| ; 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 | |
| } |