| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=aarch64-linux-gnu -fast-isel=0 -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,ISEL |
| ; RUN: llc -mtriple=aarch64-linux-gnu -fast-isel=1 -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,FAST |
| |
| define i32 @test1(i32 %x) { |
| ; CHECK-LABEL: test1: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: add w8, w0, #7 |
| ; CHECK-NEXT: cmp w0, #0 |
| ; CHECK-NEXT: csel w8, w8, w0, lt |
| ; CHECK-NEXT: asr w0, w8, #3 |
| ; CHECK-NEXT: ret |
| %div = sdiv i32 %x, 8 |
| ret i32 %div |
| } |
| |
| define i32 @test2(i32 %x) { |
| ; CHECK-LABEL: test2: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: add w8, w0, #7 |
| ; CHECK-NEXT: cmp w0, #0 |
| ; CHECK-NEXT: csel w8, w8, w0, lt |
| ; CHECK-NEXT: neg w0, w8, asr #3 |
| ; CHECK-NEXT: ret |
| %div = sdiv i32 %x, -8 |
| ret i32 %div |
| } |
| |
| define i32 @test3(i32 %x) { |
| ; CHECK-LABEL: test3: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: add w8, w0, #31 |
| ; CHECK-NEXT: cmp w0, #0 |
| ; CHECK-NEXT: csel w8, w8, w0, lt |
| ; CHECK-NEXT: asr w0, w8, #5 |
| ; CHECK-NEXT: ret |
| %div = sdiv i32 %x, 32 |
| ret i32 %div |
| } |
| |
| define i64 @test4(i64 %x) { |
| ; CHECK-LABEL: test4: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: add x8, x0, #7 |
| ; CHECK-NEXT: cmp x0, #0 |
| ; CHECK-NEXT: csel x8, x8, x0, lt |
| ; CHECK-NEXT: asr x0, x8, #3 |
| ; CHECK-NEXT: ret |
| %div = sdiv i64 %x, 8 |
| ret i64 %div |
| } |
| |
| define i64 @test5(i64 %x) { |
| ; CHECK-LABEL: test5: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: add x8, x0, #7 |
| ; CHECK-NEXT: cmp x0, #0 |
| ; CHECK-NEXT: csel x8, x8, x0, lt |
| ; CHECK-NEXT: neg x0, x8, asr #3 |
| ; CHECK-NEXT: ret |
| %div = sdiv i64 %x, -8 |
| ret i64 %div |
| } |
| |
| define i64 @test6(i64 %x) { |
| ; CHECK-LABEL: test6: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: add x8, x0, #63 |
| ; CHECK-NEXT: cmp x0, #0 |
| ; CHECK-NEXT: csel x8, x8, x0, lt |
| ; CHECK-NEXT: asr x0, x8, #6 |
| ; CHECK-NEXT: ret |
| %div = sdiv i64 %x, 64 |
| ret i64 %div |
| } |
| |
| define i64 @test7(i64 %x) { |
| ; CHECK-LABEL: test7: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: mov x8, #281474976710655 |
| ; CHECK-NEXT: cmp x0, #0 |
| ; CHECK-NEXT: add x8, x0, x8 |
| ; CHECK-NEXT: csel x8, x8, x0, lt |
| ; CHECK-NEXT: asr x0, x8, #48 |
| ; CHECK-NEXT: ret |
| %div = sdiv i64 %x, 281474976710656 |
| ret i64 %div |
| } |
| |
| define i64 @test8(i64 %x) { |
| ; ISEL-LABEL: test8: |
| ; ISEL: // %bb.0: |
| ; ISEL-NEXT: cmp x0, #0 |
| ; ISEL-NEXT: cinc x8, x0, lt |
| ; ISEL-NEXT: asr x0, x8, #1 |
| ; ISEL-NEXT: ret |
| ; |
| ; FAST-LABEL: test8: |
| ; FAST: // %bb.0: |
| ; FAST-NEXT: add x8, x0, #1 |
| ; FAST-NEXT: cmp x0, #0 |
| ; FAST-NEXT: csel x8, x8, x0, lt |
| ; FAST-NEXT: asr x0, x8, #1 |
| ; FAST-NEXT: ret |
| %div = sdiv i64 %x, 2 |
| ret i64 %div |
| } |
| |