| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=thumbv6-eabi %s -o - | FileCheck %s |
| |
| define i32 @test1(i32 %x) { |
| ; CHECK-LABEL: test1: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsls r0, r0, #20 |
| ; CHECK-NEXT: lsrs r0, r0, #22 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %0 = lshr i32 %x, 2 |
| %shr = and i32 %0, 1023 |
| ret i32 %shr |
| } |
| |
| define i32 @test2(i32 %x) { |
| ; CHECK-LABEL: test2: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsrs r1, r0, #2 |
| ; CHECK-NEXT: ldr r0, .LCPI1_0 |
| ; CHECK-NEXT: ands r0, r1 |
| ; CHECK-NEXT: bx lr |
| ; CHECK-NEXT: .p2align 2 |
| ; CHECK-NEXT: @ %bb.1: |
| ; CHECK-NEXT: .LCPI1_0: |
| ; CHECK-NEXT: .long 1022 @ 0x3fe |
| entry: |
| %0 = lshr i32 %x, 2 |
| %shr = and i32 %0, 1022 |
| ret i32 %shr |
| } |
| |
| define i32 @test3(i32 %x) { |
| ; CHECK-LABEL: test3: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsrs r0, r0, #2 |
| ; CHECK-NEXT: uxtb r0, r0 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %0 = lshr i32 %x, 2 |
| %shr = and i32 %0, 255 |
| ret i32 %shr |
| } |
| |
| define i32 @test4(i32 %x) { |
| ; CHECK-LABEL: test4: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsrs r0, r0, #3 |
| ; CHECK-NEXT: lsls r0, r0, #7 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %0 = shl i32 %x, 4 |
| %shr = and i32 %0, -128 |
| ret i32 %shr |
| } |
| |
| define i32 @test5(i32 %x) { |
| ; CHECK-LABEL: test5: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsls r0, r0, #31 |
| ; CHECK-NEXT: lsrs r0, r0, #2 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %0 = shl i32 %x, 29 |
| %shr = and i32 %0, 536870912 |
| ret i32 %shr |
| } |
| |
| define i32 @test6(i32 %x) { |
| ; CHECK-LABEL: test6: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: movs r1, #5 |
| ; CHECK-NEXT: lsls r1, r1, #29 |
| ; CHECK-NEXT: lsls r0, r0, #29 |
| ; CHECK-NEXT: ands r0, r1 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %0 = shl i32 %x, 29 |
| %shr = and i32 %0, 2684354560 |
| ret i32 %shr |
| } |
| |
| define i32 @test7(i32 %x) { |
| ; CHECK-LABEL: test7: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsrs r0, r0, #31 |
| ; CHECK-NEXT: lsls r0, r0, #2 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %0 = lshr i32 %x, 29 |
| %shr = and i32 %0, 4 |
| ret i32 %shr |
| } |
| |
| define i32 @test8(i32 %x) { |
| ; CHECK-LABEL: test8: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsrs r1, r0, #29 |
| ; CHECK-NEXT: movs r0, #5 |
| ; CHECK-NEXT: ands r0, r1 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %0 = lshr i32 %x, 29 |
| %shr = and i32 %0, 5 |
| ret i32 %shr |
| } |
| |
| define i32 @test9(i32 %x) { |
| ; CHECK-LABEL: test9: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsrs r0, r0, #3 |
| ; CHECK-NEXT: lsls r0, r0, #1 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %and = lshr i32 %x, 2 |
| %shr = and i32 %and, 1073741822 |
| ret i32 %shr |
| } |
| |
| define i32 @test10(i32 %x) { |
| ; CHECK-LABEL: test10: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsls r0, r0, #2 |
| ; CHECK-NEXT: uxtb r0, r0 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %0 = shl i32 %x, 2 |
| %shr = and i32 %0, 255 |
| ret i32 %shr |
| } |
| |
| define i32 @test11(i32 %x) { |
| ; CHECK-LABEL: test11: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsrs r0, r0, #24 |
| ; CHECK-NEXT: lsls r0, r0, #2 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %shl = lshr i32 %x, 22 |
| %and = and i32 %shl, 1020 |
| ret i32 %and |
| } |
| |
| define i32 @test12(i32 %x) { |
| ; CHECK-LABEL: test12: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsrs r0, r0, #3 |
| ; CHECK-NEXT: lsls r0, r0, #4 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %0 = shl i32 %x, 1 |
| %shr = and i32 %0, -16 |
| ret i32 %shr |
| } |
| |
| define i32 @test13(i32 %x) { |
| ; CHECK-LABEL: test13: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsrs r0, r0, #3 |
| ; CHECK-NEXT: lsls r0, r0, #4 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %shr = lshr i32 %x, 3 |
| %shl = shl i32 %shr, 4 |
| ret i32 %shl |
| } |
| |
| define i32 @test14(i32 %x) { |
| ; CHECK-LABEL: test14: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsrs r0, r0, #6 |
| ; CHECK-NEXT: lsls r0, r0, #10 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %shl = shl i32 %x, 4 |
| %and = and i32 %shl, -1024 |
| ret i32 %and |
| } |
| |
| define i32 @test15(i32 %x) { |
| ; CHECK-LABEL: test15: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsrs r0, r0, #4 |
| ; CHECK-NEXT: lsls r0, r0, #3 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %shr = lshr i32 %x, 4 |
| %shl = shl i32 %shr, 3 |
| ret i32 %shl |
| } |
| |
| define i32 @test16(i32 %x) { |
| ; CHECK-LABEL: test16: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsls r0, r0, #28 |
| ; CHECK-NEXT: lsrs r0, r0, #26 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %0 = and i32 %x, 15 |
| %shl = shl i32 %0, 2 |
| ret i32 %shl |
| } |
| |
| define i32* @test17(i32* %p, i32 %x) { |
| ; CHECK-LABEL: test17: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: lsls r1, r1, #28 |
| ; CHECK-NEXT: lsrs r1, r1, #26 |
| ; CHECK-NEXT: adds r0, r0, r1 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %0 = and i32 %x, 15 |
| %shl = getelementptr i32, i32* %p, i32 %0 |
| ret i32* %shl |
| } |
| |
| define i32* @test18(i32* %p, i32 %x) { |
| ; CHECK-LABEL: test18: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: adds r1, r1, #1 |
| ; CHECK-NEXT: lsls r1, r1, #28 |
| ; CHECK-NEXT: lsrs r1, r1, #26 |
| ; CHECK-NEXT: adds r0, r0, r1 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %xx = add i32 %x, 1 |
| %0 = and i32 %xx, 15 |
| %shl = getelementptr i32, i32* %p, i32 %0 |
| ret i32* %shl |
| } |
| |
| define i32* @test19(i32* %p, i32 %x) { |
| ; CHECK-LABEL: test19: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: subs r1, r1, #1 |
| ; CHECK-NEXT: lsls r1, r1, #28 |
| ; CHECK-NEXT: lsrs r1, r1, #26 |
| ; CHECK-NEXT: adds r0, r0, r1 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %xx = sub i32 %x, 1 |
| %0 = and i32 %xx, 15 |
| %shl = getelementptr i32, i32* %p, i32 %0 |
| ret i32* %shl |
| } |
| |
| define i32* @test20(i32* %p, i32 %x) { |
| ; CHECK-LABEL: test20: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: subs r1, r1, #1 |
| ; CHECK-NEXT: lsls r1, r1, #28 |
| ; CHECK-NEXT: lsrs r1, r1, #26 |
| ; CHECK-NEXT: adds r0, r0, r1 |
| ; CHECK-NEXT: bx lr |
| entry: |
| %xx = add i32 %x, 15 |
| %0 = and i32 %xx, 15 |
| %shl = getelementptr i32, i32* %p, i32 %0 |
| ret i32* %shl |
| } |