134 lines
4.4 KiB
LLVM
134 lines
4.4 KiB
LLVM
; RUN: llc -mtriple=x86_64-unknown-unknown < %s | FileCheck %s
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define i8 @ctz_v8i16(<8 x i16> %a) {
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; CHECK-LABEL: .LCPI0_0:
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; CHECK-NEXT: .byte 8
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; CHECK-NEXT: .byte 7
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; CHECK-NEXT: .byte 6
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; CHECK-NEXT: .byte 5
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; CHECK-NEXT: .byte 4
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; CHECK-NEXT: .byte 3
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; CHECK-NEXT: .byte 2
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; CHECK-NEXT: .byte 1
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; CHECK-LABEL: ctz_v8i16:
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; CHECK: # %bb.0:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: pcmpeqw %xmm0, %xmm1
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; CHECK-NEXT: packsswb %xmm1, %xmm1
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; CHECK-NEXT: pandn {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1
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; CHECK-NEXT: movdqa %xmm1, -{{[0-9]+}}(%rsp)
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; CHECK-NEXT: movzbl -{{[0-9]+}}(%rsp), %ecx
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; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax
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; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %edx
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; CHECK-NEXT: cmpb %cl, %al
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; CHECK-NEXT: cmoval %eax, %ecx
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; CHECK-NEXT: movzbl -{{[0-9]+}}(%rsp), %eax
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; CHECK-NEXT: cmpb %al, %cl
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; CHECK-NEXT: cmovbel %eax, %ecx
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; CHECK-NEXT: movzbl -{{[0-9]+}}(%rsp), %eax
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; CHECK-NEXT: cmpb %al, %cl
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; CHECK-NEXT: cmovbel %eax, %ecx
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; CHECK-NEXT: cmpb %dl, %cl
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; CHECK-NEXT: cmovbel %edx, %ecx
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; CHECK-NEXT: movzbl -{{[0-9]+}}(%rsp), %eax
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; CHECK-NEXT: cmpb %al, %cl
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; CHECK-NEXT: cmovbel %eax, %ecx
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; CHECK-NEXT: movzbl -{{[0-9]+}}(%rsp), %eax
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; CHECK-NEXT: cmpb %al, %cl
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; CHECK-NEXT: cmovbel %eax, %ecx
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; CHECK-NEXT: movzbl -{{[0-9]+}}(%rsp), %eax
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; CHECK-NEXT: cmpb %al, %cl
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; CHECK-NEXT: cmovbel %eax, %ecx
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; CHECK-NEXT: movb $8, %al
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; CHECK-NEXT: subb %cl, %al
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; CHECK-NEXT: retq
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%res = call i8 @llvm.experimental.cttz.elts.i8.v8i16(<8 x i16> %a, i1 0)
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ret i8 %res
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}
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define i16 @ctz_v4i32(<4 x i32> %a) {
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; CHECK-LABEL: .LCPI1_0:
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; CHECK-NEXT: .byte 4
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; CHECK-NEXT: .byte 3
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; CHECK-NEXT: .byte 2
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; CHECK-NEXT: .byte 1
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; CHECK-LABEL: ctz_v4i32:
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; CHECK: # %bb.0:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: pcmpeqd %xmm0, %xmm1
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; CHECK-NEXT: packssdw %xmm1, %xmm1
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; CHECK-NEXT: pcmpeqd %xmm0, %xmm0
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; CHECK-NEXT: pxor %xmm1, %xmm0
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; CHECK-NEXT: packsswb %xmm0, %xmm0
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; CHECK-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
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; CHECK-NEXT: movd %xmm0, %eax
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; CHECK-NEXT: movl %eax, %ecx
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; CHECK-NEXT: shrl $8, %ecx
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; CHECK-NEXT: cmpb %cl, %al
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; CHECK-NEXT: cmoval %eax, %ecx
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; CHECK-NEXT: movl %eax, %edx
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; CHECK-NEXT: shrl $16, %edx
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; CHECK-NEXT: cmpb %dl, %cl
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; CHECK-NEXT: cmoval %ecx, %edx
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; CHECK-NEXT: shrl $24, %eax
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; CHECK-NEXT: cmpb %al, %dl
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; CHECK-NEXT: cmoval %edx, %eax
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; CHECK-NEXT: movb $4, %cl
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; CHECK-NEXT: subb %al, %cl
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; CHECK-NEXT: movzbl %cl, %eax
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; CHECK-NEXT: # kill: def $ax killed $ax killed $eax
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; CHECK-NEXT: retq
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%res = call i16 @llvm.experimental.cttz.elts.i16.v4i32(<4 x i32> %a, i1 0)
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ret i16 %res
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}
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; ZERO IS POISON
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define i8 @ctz_v8i16_poison(<8 x i16> %a) {
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; CHECK-LABEL: .LCPI2_0:
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; CHECK-NEXT: .byte 8
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; CHECK-NEXT: .byte 7
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; CHECK-NEXT: .byte 6
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; CHECK-NEXT: .byte 5
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; CHECK-NEXT: .byte 4
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; CHECK-NEXT: .byte 3
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; CHECK-NEXT: .byte 2
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; CHECK-NEXT: .byte 1
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; CHECK-LABEL: ctz_v8i16_poison:
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; CHECK: # %bb.0:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: pcmpeqw %xmm0, %xmm1
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; CHECK-NEXT: packsswb %xmm1, %xmm1
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; CHECK-NEXT: pandn {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1
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; CHECK-NEXT: movdqa %xmm1, -{{[0-9]+}}(%rsp)
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; CHECK-NEXT: movzbl -{{[0-9]+}}(%rsp), %ecx
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; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax
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; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %edx
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; CHECK-NEXT: cmpb %cl, %al
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; CHECK-NEXT: cmoval %eax, %ecx
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; CHECK-NEXT: movzbl -{{[0-9]+}}(%rsp), %eax
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; CHECK-NEXT: cmpb %al, %cl
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; CHECK-NEXT: cmovbel %eax, %ecx
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; CHECK-NEXT: movzbl -{{[0-9]+}}(%rsp), %eax
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; CHECK-NEXT: cmpb %al, %cl
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; CHECK-NEXT: cmovbel %eax, %ecx
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; CHECK-NEXT: cmpb %dl, %cl
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; CHECK-NEXT: cmovbel %edx, %ecx
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; CHECK-NEXT: movzbl -{{[0-9]+}}(%rsp), %eax
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; CHECK-NEXT: cmpb %al, %cl
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; CHECK-NEXT: cmovbel %eax, %ecx
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; CHECK-NEXT: movzbl -{{[0-9]+}}(%rsp), %eax
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; CHECK-NEXT: cmpb %al, %cl
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; CHECK-NEXT: cmovbel %eax, %ecx
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; CHECK-NEXT: movzbl -{{[0-9]+}}(%rsp), %eax
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; CHECK-NEXT: cmpb %al, %cl
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; CHECK-NEXT: cmovbel %eax, %ecx
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; CHECK-NEXT: movb $8, %al
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; CHECK-NEXT: subb %cl, %al
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; CHECK-NEXT: retq
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%res = call i8 @llvm.experimental.cttz.elts.i8.v8i16(<8 x i16> %a, i1 1)
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ret i8 %res
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}
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declare i8 @llvm.experimental.cttz.elts.i8.v8i16(<8 x i16>, i1)
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declare i16 @llvm.experimental.cttz.elts.i16.v4i32(<4 x i32>, i1)
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