| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=arm-eabi -mattr=+v6 %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-V6 |
| ; RUN: llc -mtriple=arm-eabi -mattr=+v7 %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-V7 |
| |
| define i32 @test0(i8 %A) { |
| ; CHECK-LABEL: test0: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: sxtb r0, r0 |
| ; CHECK-NEXT: bx lr |
| %B = sext i8 %A to i32 |
| ret i32 %B |
| } |
| |
| define signext i8 @test1(i32 %A) { |
| ; CHECK-V6-LABEL: test1: |
| ; CHECK-V6: @ %bb.0: |
| ; CHECK-V6-NEXT: lsr r0, r0, #8 |
| ; CHECK-V6-NEXT: sxtb r0, r0 |
| ; CHECK-V6-NEXT: bx lr |
| ; |
| ; CHECK-V7-LABEL: test1: |
| ; CHECK-V7: @ %bb.0: |
| ; CHECK-V7-NEXT: sbfx r0, r0, #8, #8 |
| ; CHECK-V7-NEXT: bx lr |
| ; CHECk-V7: sbfx r0, r0, #8, #8 |
| %B = lshr i32 %A, 8 |
| %C = shl i32 %A, 24 |
| %D = or i32 %B, %C |
| %E = trunc i32 %D to i8 |
| ret i8 %E |
| } |
| |
| define signext i32 @test2(i32 %A, i32 %X) { |
| ; CHECK-LABEL: test2: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: sxtab r0, r1, r0, ror #8 |
| ; CHECK-NEXT: bx lr |
| %B = lshr i32 %A, 8 |
| %C = shl i32 %A, 24 |
| %D = or i32 %B, %C |
| %E = trunc i32 %D to i8 |
| %F = sext i8 %E to i32 |
| %G = add i32 %F, %X |
| ret i32 %G |
| } |
| |
| define signext i32 @test3(i32 %A, i32 %X) { |
| ; CHECK-LABEL: test3: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: sxtab r0, r1, r0, ror #16 |
| ; CHECK-NEXT: bx lr |
| %B = lshr i32 %A, 16 |
| %C = shl i32 %A, 16 |
| %D = or i32 %B, %C |
| %E = trunc i32 %D to i8 |
| %F = sext i8 %E to i32 |
| %G = add i32 %F, %X |
| ret i32 %G |
| } |
| |
| define signext i32 @test4(i32 %A, i32 %X) { |
| ; CHECK-LABEL: test4: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: sxtah r0, r1, r0, ror #8 |
| ; CHECK-NEXT: bx lr |
| %B = lshr i32 %A, 8 |
| %C = shl i32 %A, 24 |
| %D = or i32 %B, %C |
| %E = trunc i32 %D to i16 |
| %F = sext i16 %E to i32 |
| %G = add i32 %F, %X |
| ret i32 %G |
| } |
| |
| define signext i32 @test5(i32 %A, i32 %X) { |
| ; CHECK-LABEL: test5: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: sxtah r0, r1, r0, ror #24 |
| ; CHECK-NEXT: bx lr |
| %B = lshr i32 %A, 24 |
| %C = shl i32 %A, 8 |
| %D = or i32 %B, %C |
| %E = trunc i32 %D to i16 |
| %F = sext i16 %E to i32 |
| %G = add i32 %F, %X |
| ret i32 %G |
| } |
| |
| define i32 @test6(i8 %A, i32 %X) { |
| ; CHECK-LABEL: test6: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: sxtab r0, r1, r0 |
| ; CHECK-NEXT: bx lr |
| %sext = sext i8 %A to i32 |
| %add = add i32 %X, %sext |
| ret i32 %add |
| } |
| |
| define i32 @test7(i32 %A, i32 %X) { |
| ; CHECK-LABEL: test7: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: sxtab r0, r1, r0 |
| ; CHECK-NEXT: bx lr |
| %shl = shl i32 %A, 24 |
| %shr = ashr i32 %shl, 24 |
| %add = add i32 %X, %shr |
| ret i32 %add |
| } |
| |
| define i32 @test8(i16 %A, i32 %X) { |
| ; CHECK-LABEL: test8: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: sxtah r0, r1, r0 |
| ; CHECK-NEXT: bx lr |
| %sext = sext i16 %A to i32 |
| %add = add i32 %X, %sext |
| ret i32 %add |
| } |
| |
| define i32 @test9(i32 %A, i32 %X) { |
| ; CHECK-LABEL: test9: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: sxtah r0, r1, r0 |
| ; CHECK-NEXT: bx lr |
| %shl = shl i32 %A, 16 |
| %shr = ashr i32 %shl, 16 |
| %add = add i32 %X, %shr |
| ret i32 %add |
| } |