| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s |
| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu < %s | FileCheck %s |
| |
| ; Make sure that the subfic is generated iff possible |
| |
| define i64 @subtract_from_imm1(i64 %v) nounwind readnone { |
| entry: |
| ; CHECK-LABEL: subtract_from_imm1 |
| ; CHECK: subfic 3, 3, 32767 |
| ; CHECK: blr |
| %sub = sub i64 32767, %v |
| ret i64 %sub |
| } |
| |
| define i64 @subtract_from_imm2(i64 %v) nounwind readnone { |
| entry: |
| ; CHECK-LABEL: subtract_from_imm2 |
| ; CHECK-NOT: subfic |
| ; CHECK: blr |
| %sub = sub i64 32768, %v |
| ret i64 %sub |
| } |
| |
| define i64 @subtract_from_imm3(i64 %v) nounwind readnone { |
| entry: |
| ; CHECK-LABEL: subtract_from_imm3 |
| ; CHECK: subfic 3, 3, -32768 |
| ; CHECK: blr |
| %sub = sub i64 -32768, %v |
| ret i64 %sub |
| } |
| |
| define i64 @subtract_from_imm4(i64 %v) nounwind readnone { |
| entry: |
| ; CHECK-LABEL: subtract_from_imm4 |
| ; CHECK-NOT: subfic |
| ; CHECK: blr |
| %sub = sub i64 -32769, %v |
| ret i64 %sub |
| } |
| |
