derek.holloway
7502bf64a4
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163 lines
4.4 KiB
LLVM
163 lines
4.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple arm-eabi -mattr=+v6t2 | FileCheck %s
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define i4 @parity_4(i4 %x) {
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; CHECK-LABEL: parity_4:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: and r0, r0, #15
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; CHECK-NEXT: eor r0, r0, r0, lsr #2
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; CHECK-NEXT: eor r0, r0, r0, lsr #1
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; CHECK-NEXT: and r0, r0, #1
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; CHECK-NEXT: bx lr
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%1 = tail call i4 @llvm.ctpop.i4(i4 %x)
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%2 = and i4 %1, 1
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ret i4 %2
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}
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define i8 @parity_8(i8 %x) {
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; CHECK-LABEL: parity_8:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: uxtb r0, r0
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; CHECK-NEXT: eor r0, r0, r0, lsr #4
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; CHECK-NEXT: eor r0, r0, r0, lsr #2
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; CHECK-NEXT: eor r0, r0, r0, lsr #1
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; CHECK-NEXT: and r0, r0, #1
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; CHECK-NEXT: bx lr
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%1 = tail call i8 @llvm.ctpop.i8(i8 %x)
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%2 = and i8 %1, 1
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ret i8 %2
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}
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define i16 @parity_16(i16 %x) {
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; CHECK-LABEL: parity_16:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: uxth r0, r0
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; CHECK-NEXT: eor r0, r0, r0, lsr #8
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; CHECK-NEXT: eor r0, r0, r0, lsr #4
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; CHECK-NEXT: eor r0, r0, r0, lsr #2
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; CHECK-NEXT: eor r0, r0, r0, lsr #1
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; CHECK-NEXT: and r0, r0, #1
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; CHECK-NEXT: bx lr
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%1 = tail call i16 @llvm.ctpop.i16(i16 %x)
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%2 = and i16 %1, 1
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ret i16 %2
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}
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define i17 @parity_17(i17 %x) {
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; CHECK-LABEL: parity_17:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: bfc r0, #17, #15
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; CHECK-NEXT: eor r1, r0, r0, lsr #16
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; CHECK-NEXT: eor r0, r1, r0, lsr #8
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; CHECK-NEXT: eor r0, r0, r0, lsr #4
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; CHECK-NEXT: eor r0, r0, r0, lsr #2
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; CHECK-NEXT: eor r0, r0, r0, lsr #1
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; CHECK-NEXT: and r0, r0, #1
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; CHECK-NEXT: bx lr
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%1 = tail call i17 @llvm.ctpop.i17(i17 %x)
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%2 = and i17 %1, 1
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ret i17 %2
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}
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define i32 @parity_32(i32 %x) {
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; CHECK-LABEL: parity_32:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: eor r0, r0, r0, lsr #16
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; CHECK-NEXT: eor r0, r0, r0, lsr #8
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; CHECK-NEXT: eor r0, r0, r0, lsr #4
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; CHECK-NEXT: eor r0, r0, r0, lsr #2
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; CHECK-NEXT: eor r0, r0, r0, lsr #1
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; CHECK-NEXT: and r0, r0, #1
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; CHECK-NEXT: bx lr
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%1 = tail call i32 @llvm.ctpop.i32(i32 %x)
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%2 = and i32 %1, 1
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ret i32 %2
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}
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define i64 @parity_64(i64 %x) {
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; CHECK-LABEL: parity_64:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: eor r0, r0, r1
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; CHECK-NEXT: mov r1, #0
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; CHECK-NEXT: eor r0, r0, r0, lsr #16
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; CHECK-NEXT: eor r0, r0, r0, lsr #8
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; CHECK-NEXT: eor r0, r0, r0, lsr #4
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; CHECK-NEXT: eor r0, r0, r0, lsr #2
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; CHECK-NEXT: eor r0, r0, r0, lsr #1
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; CHECK-NEXT: and r0, r0, #1
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; CHECK-NEXT: bx lr
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%1 = tail call i64 @llvm.ctpop.i64(i64 %x)
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%2 = and i64 %1, 1
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ret i64 %2
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}
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define i32 @parity_64_trunc(i64 %x) {
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; CHECK-LABEL: parity_64_trunc:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: eor r0, r0, r1
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; CHECK-NEXT: eor r0, r0, r0, lsr #16
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; CHECK-NEXT: eor r0, r0, r0, lsr #8
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; CHECK-NEXT: eor r0, r0, r0, lsr #4
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; CHECK-NEXT: eor r0, r0, r0, lsr #2
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; CHECK-NEXT: eor r0, r0, r0, lsr #1
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; CHECK-NEXT: and r0, r0, #1
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; CHECK-NEXT: bx lr
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%1 = tail call i64 @llvm.ctpop.i64(i64 %x)
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%2 = trunc i64 %1 to i32
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%3 = and i32 %2, 1
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ret i32 %3
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}
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define i8 @parity_32_trunc(i32 %x) {
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; CHECK-LABEL: parity_32_trunc:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: eor r0, r0, r0, lsr #16
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; CHECK-NEXT: eor r0, r0, r0, lsr #8
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; CHECK-NEXT: eor r0, r0, r0, lsr #4
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; CHECK-NEXT: eor r0, r0, r0, lsr #2
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; CHECK-NEXT: eor r0, r0, r0, lsr #1
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; CHECK-NEXT: and r0, r0, #1
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; CHECK-NEXT: bx lr
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%1 = tail call i32 @llvm.ctpop.i32(i32 %x)
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%2 = trunc i32 %1 to i8
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%3 = and i8 %2, 1
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ret i8 %3
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}
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define i32 @parity_8_zext(i8 %x) {
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; CHECK-LABEL: parity_8_zext:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: uxtb r0, r0
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; CHECK-NEXT: eor r0, r0, r0, lsr #4
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; CHECK-NEXT: eor r0, r0, r0, lsr #2
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; CHECK-NEXT: eor r0, r0, r0, lsr #1
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; CHECK-NEXT: and r0, r0, #1
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; CHECK-NEXT: bx lr
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%a = zext i8 %x to i32
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%b = tail call i32 @llvm.ctpop.i32(i32 %a)
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%c = and i32 %b, 1
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ret i32 %c
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}
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define i32 @parity_8_mask(i32 %x) {
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; CHECK-LABEL: parity_8_mask:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: uxtb r0, r0
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; CHECK-NEXT: eor r0, r0, r0, lsr #4
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; CHECK-NEXT: eor r0, r0, r0, lsr #2
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; CHECK-NEXT: eor r0, r0, r0, lsr #1
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; CHECK-NEXT: and r0, r0, #1
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; CHECK-NEXT: bx lr
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%a = and i32 %x, 255
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%b = tail call i32 @llvm.ctpop.i32(i32 %a)
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%c = and i32 %b, 1
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ret i32 %c
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}
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declare i4 @llvm.ctpop.i4(i4 %x)
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declare i8 @llvm.ctpop.i8(i8 %x)
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declare i16 @llvm.ctpop.i16(i16 %x)
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declare i17 @llvm.ctpop.i17(i17 %x)
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declare i32 @llvm.ctpop.i32(i32 %x)
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declare i64 @llvm.ctpop.i64(i64 %x)
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