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[NFC][Codegen][X86] Add test for parity-of-vector-of-bools (PR51312)

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Roman Lebedev 2021-08-04 01:46:58 +03:00
parent 0b094c06f4
commit cb2a2ba8d6
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1 changed files with 93 additions and 0 deletions
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llvm/test/CodeGen/X86/parity-vec.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+popcnt,+sse2 | FileCheck %s
define i1 @noncanonical_parity(<16 x i1> %x) {
; CHECK-LABEL: noncanonical_parity:
; CHECK: # %bb.0:
; CHECK-NEXT: psllw $7, %xmm0
; CHECK-NEXT: pmovmskb %xmm0, %eax
; CHECK-NEXT: popcntl %eax, %eax
; CHECK-NEXT: andl $1, %eax
; CHECK-NEXT: # kill: def $al killed $al killed $eax
; CHECK-NEXT: retq
%r = call i1 @llvm.vector.reduce.xor.v16i1(<16 x i1> %x)
ret i1 %r
}
define i1 @canonical_parity(<16 x i1> %x) {
; CHECK-LABEL: canonical_parity:
; CHECK: # %bb.0:
; CHECK-NEXT: psllw $7, %xmm0
; CHECK-NEXT: pmovmskb %xmm0, %eax
; CHECK-NEXT: popcntw %ax, %ax
; CHECK-NEXT: testb $1, %al
; CHECK-NEXT: setne %al
; CHECK-NEXT: retq
%i1 = bitcast <16 x i1> %x to i16
%i2 = call i16 @llvm.ctpop.i16(i16 %i1)
%i3 = and i16 %i2, 1
%i4 = icmp ne i16 %i3, 0
ret i1 %i4
}
define i1 @canonical_parity_noncanonical_pred(<16 x i1> %x) {
; CHECK-LABEL: canonical_parity_noncanonical_pred:
; CHECK: # %bb.0:
; CHECK-NEXT: psllw $7, %xmm0
; CHECK-NEXT: pmovmskb %xmm0, %eax
; CHECK-NEXT: popcntw %ax, %ax
; CHECK-NEXT: # kill: def $al killed $al killed $ax
; CHECK-NEXT: retq
%i1 = bitcast <16 x i1> %x to i16
%i2 = call i16 @llvm.ctpop.i16(i16 %i1)
%i3 = and i16 %i2, 1
%i4 = icmp eq i16 %i3, 1
ret i1 %i4
}
define i1 @noncanonical_nonparity(<16 x i1> %x) {
; CHECK-LABEL: noncanonical_nonparity:
; CHECK: # %bb.0:
; CHECK-NEXT: psllw $7, %xmm0
; CHECK-NEXT: pmovmskb %xmm0, %eax
; CHECK-NEXT: popcntl %eax, %eax
; CHECK-NEXT: andl $1, %eax
; CHECK-NEXT: xorb $1, %al
; CHECK-NEXT: # kill: def $al killed $al killed $eax
; CHECK-NEXT: retq
%r.inv = call i1 @llvm.vector.reduce.xor.v16i1(<16 x i1> %x)
%r = xor i1 %r.inv, -1
ret i1 %r
}
define i1 @canonical_nonparity(<16 x i1> %x) {
; CHECK-LABEL: canonical_nonparity:
; CHECK: # %bb.0:
; CHECK-NEXT: psllw $7, %xmm0
; CHECK-NEXT: pmovmskb %xmm0, %eax
; CHECK-NEXT: popcntw %ax, %ax
; CHECK-NEXT: testb $1, %al
; CHECK-NEXT: sete %al
; CHECK-NEXT: retq
%i1 = bitcast <16 x i1> %x to i16
%i2 = call i16 @llvm.ctpop.i16(i16 %i1)
%i3 = and i16 %i2, 1
%i4 = icmp eq i16 %i3, 0
ret i1 %i4
}
define i1 @canonical_nonparity_noncanonical_pred(<16 x i1> %x) {
; CHECK-LABEL: canonical_nonparity_noncanonical_pred:
; CHECK: # %bb.0:
; CHECK-NEXT: psllw $7, %xmm0
; CHECK-NEXT: pmovmskb %xmm0, %eax
; CHECK-NEXT: popcntw %ax, %ax
; CHECK-NEXT: andl $1, %eax
; CHECK-NEXT: xorb $1, %al
; CHECK-NEXT: # kill: def $al killed $al killed $eax
; CHECK-NEXT: retq
%i1 = bitcast <16 x i1> %x to i16
%i2 = call i16 @llvm.ctpop.i16(i16 %i1)
%i3 = and i16 %i2, 1
%i4 = icmp ne i16 %i3, 1
ret i1 %i4
}
declare i1 @llvm.vector.reduce.xor.v16i1(<16 x i1>)
declare i16 @llvm.ctpop.i16(i16)