| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple arm-eabi -mattr=+v6t2 | FileCheck %s |
| |
| define i4 @parity_4(i4 %x) { |
| ; CHECK-LABEL: parity_4: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: and r0, r0, #15 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #2 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #1 |
| ; CHECK-NEXT: and r0, r0, #1 |
| ; CHECK-NEXT: bx lr |
| %1 = tail call i4 @llvm.ctpop.i4(i4 %x) |
| %2 = and i4 %1, 1 |
| ret i4 %2 |
| } |
| |
| define i8 @parity_8(i8 %x) { |
| ; CHECK-LABEL: parity_8: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: uxtb r0, r0 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #4 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #2 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #1 |
| ; CHECK-NEXT: and r0, r0, #1 |
| ; CHECK-NEXT: bx lr |
| %1 = tail call i8 @llvm.ctpop.i8(i8 %x) |
| %2 = and i8 %1, 1 |
| ret i8 %2 |
| } |
| |
| define i16 @parity_16(i16 %x) { |
| ; CHECK-LABEL: parity_16: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: uxth r0, r0 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #8 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #4 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #2 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #1 |
| ; CHECK-NEXT: and r0, r0, #1 |
| ; CHECK-NEXT: bx lr |
| %1 = tail call i16 @llvm.ctpop.i16(i16 %x) |
| %2 = and i16 %1, 1 |
| ret i16 %2 |
| } |
| |
| define i17 @parity_17(i17 %x) { |
| ; CHECK-LABEL: parity_17: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: bfc r0, #17, #15 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #16 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #8 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #4 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #2 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #1 |
| ; CHECK-NEXT: and r0, r0, #1 |
| ; CHECK-NEXT: bx lr |
| %1 = tail call i17 @llvm.ctpop.i17(i17 %x) |
| %2 = and i17 %1, 1 |
| ret i17 %2 |
| } |
| |
| define i32 @parity_32(i32 %x) { |
| ; CHECK-LABEL: parity_32: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #16 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #8 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #4 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #2 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #1 |
| ; CHECK-NEXT: and r0, r0, #1 |
| ; CHECK-NEXT: bx lr |
| %1 = tail call i32 @llvm.ctpop.i32(i32 %x) |
| %2 = and i32 %1, 1 |
| ret i32 %2 |
| } |
| |
| define i64 @parity_64(i64 %x) { |
| ; CHECK-LABEL: parity_64: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: eor r0, r0, r1 |
| ; CHECK-NEXT: mov r1, #0 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #16 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #8 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #4 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #2 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #1 |
| ; CHECK-NEXT: and r0, r0, #1 |
| ; CHECK-NEXT: bx lr |
| %1 = tail call i64 @llvm.ctpop.i64(i64 %x) |
| %2 = and i64 %1, 1 |
| ret i64 %2 |
| } |
| |
| define i32 @parity_64_trunc(i64 %x) { |
| ; CHECK-LABEL: parity_64_trunc: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: eor r0, r0, r1 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #16 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #8 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #4 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #2 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #1 |
| ; CHECK-NEXT: and r0, r0, #1 |
| ; CHECK-NEXT: bx lr |
| %1 = tail call i64 @llvm.ctpop.i64(i64 %x) |
| %2 = trunc i64 %1 to i32 |
| %3 = and i32 %2, 1 |
| ret i32 %3 |
| } |
| |
| define i8 @parity_32_trunc(i32 %x) { |
| ; CHECK-LABEL: parity_32_trunc: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #16 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #8 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #4 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #2 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #1 |
| ; CHECK-NEXT: and r0, r0, #1 |
| ; CHECK-NEXT: bx lr |
| %1 = tail call i32 @llvm.ctpop.i32(i32 %x) |
| %2 = trunc i32 %1 to i8 |
| %3 = and i8 %2, 1 |
| ret i8 %3 |
| } |
| |
| define i32 @parity_8_zext(i8 %x) { |
| ; CHECK-LABEL: parity_8_zext: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: uxtb r0, r0 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #4 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #2 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #1 |
| ; CHECK-NEXT: and r0, r0, #1 |
| ; CHECK-NEXT: bx lr |
| %a = zext i8 %x to i32 |
| %b = tail call i32 @llvm.ctpop.i32(i32 %a) |
| %c = and i32 %b, 1 |
| ret i32 %c |
| } |
| |
| define i32 @parity_8_mask(i32 %x) { |
| ; CHECK-LABEL: parity_8_mask: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: uxtb r0, r0 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #4 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #2 |
| ; CHECK-NEXT: eor r0, r0, r0, lsr #1 |
| ; CHECK-NEXT: and r0, r0, #1 |
| ; CHECK-NEXT: bx lr |
| %a = and i32 %x, 255 |
| %b = tail call i32 @llvm.ctpop.i32(i32 %a) |
| %c = and i32 %b, 1 |
| ret i32 %c |
| } |
| |
| declare i4 @llvm.ctpop.i4(i4 %x) |
| declare i8 @llvm.ctpop.i8(i8 %x) |
| declare i16 @llvm.ctpop.i16(i16 %x) |
| declare i17 @llvm.ctpop.i17(i17 %x) |
| declare i32 @llvm.ctpop.i32(i32 %x) |
| declare i64 @llvm.ctpop.i64(i64 %x) |