| ; 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: lsls r0, r0, #4 | |
| ; CHECK-NEXT: movs r1, #127 | |
| ; CHECK-NEXT: bics r0, r1 | |
| ; 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 r1, r0, #29 | |
| ; CHECK-NEXT: movs r0, #4 | |
| ; CHECK-NEXT: ands r0, r1 | |
| ; 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 r1, r0, #2 | |
| ; CHECK-NEXT: ldr r0, .LCPI8_0 | |
| ; CHECK-NEXT: ands r0, r1 | |
| ; CHECK-NEXT: bx lr | |
| ; CHECK-NEXT: .p2align 2 | |
| ; CHECK-NEXT: @ %bb.1: | |
| ; CHECK-NEXT: .LCPI8_0: | |
| ; CHECK-NEXT: .long 1073741822 @ 0x3ffffffe | |
| entry: | |
| %and = lshr i32 %x, 2 | |
| %shr = and i32 %and, 1073741822 | |
| ret i32 %shr | |
| } |