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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/intrinsic-cttz-elts.ll
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derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

106 lines
3.5 KiB
LLVM

; RUN: llc -mtriple=x86_64-unknown-unknown < %s | FileCheck %s
define i8 @ctz_v8i16(<8 x i16> %a) {
; CHECK-LABEL: .LCPI0_0:
; CHECK-NEXT: .short 8
; CHECK-NEXT: .short 7
; CHECK-NEXT: .short 6
; CHECK-NEXT: .short 5
; CHECK-NEXT: .short 4
; CHECK-NEXT: .short 3
; CHECK-NEXT: .short 2
; CHECK-NEXT: .short 1
; CHECK-LABEL: ctz_v8i16:
; CHECK: # %bb.0:
; CHECK-NEXT: pxor %xmm1, %xmm1
; CHECK-NEXT: pcmpeqw %xmm0, %xmm1
; CHECK-NEXT: pandn {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1
; CHECK-NEXT: pshufd {{.*#+}} xmm0 = xmm1[2,3,2,3]
; CHECK-NEXT: psubusw %xmm1, %xmm0
; CHECK-NEXT: paddw %xmm1, %xmm0
; CHECK-NEXT: pshufd {{.*#+}} xmm1 = xmm0[1,1,1,1]
; CHECK-NEXT: psubusw %xmm0, %xmm1
; CHECK-NEXT: paddw %xmm0, %xmm1
; CHECK-NEXT: pextrw $1, %xmm1, %ecx
; CHECK-NEXT: movd %xmm1, %eax
; CHECK-NEXT: cmpw %cx, %ax
; CHECK-NEXT: cmoval %eax, %ecx
; CHECK-NEXT: movl $8, %eax
; CHECK-NEXT: subl %ecx, %eax
; CHECK-NEXT: # kill: def $al killed $al killed $eax
; CHECK-NEXT: retq
%res = call i8 @llvm.experimental.cttz.elts.i8.v8i16(<8 x i16> %a, i1 0)
ret i8 %res
}
define i16 @ctz_v4i32(<4 x i32> %a) {
; CHECK-LABEL: .LCPI1_0:
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 3
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 1
; CHECK-LABEL: ctz_v4i32:
; CHECK: # %bb.0:
; CHECK-NEXT: pxor %xmm1, %xmm1
; CHECK-NEXT: pcmpeqd %xmm0, %xmm1
; CHECK-NEXT: pandn {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1
; CHECK-NEXT: movdqa {{.*#+}} xmm0 = [2147483648,2147483648,2147483648,2147483648]
; CHECK-NEXT: movdqa %xmm1, %xmm2
; CHECK-NEXT: por %xmm0, %xmm2
; CHECK-NEXT: pshufd {{.*#+}} xmm3 = xmm1[2,3,2,3]
; CHECK-NEXT: por %xmm3, %xmm0
; CHECK-NEXT: pcmpgtd %xmm0, %xmm2
; CHECK-NEXT: pand %xmm2, %xmm1
; CHECK-NEXT: pandn %xmm3, %xmm2
; CHECK-NEXT: por %xmm1, %xmm2
; CHECK-NEXT: movd %xmm2, %eax
; CHECK-NEXT: pshufd {{.*#+}} xmm0 = xmm2[1,1,1,1]
; CHECK-NEXT: movd %xmm0, %ecx
; CHECK-NEXT: cmpl %ecx, %eax
; CHECK-NEXT: cmoval %eax, %ecx
; CHECK-NEXT: movl $4, %eax
; CHECK-NEXT: subl %ecx, %eax
; CHECK-NEXT: # kill: def $ax killed $ax killed $eax
; CHECK-NEXT: retq
%res = call i16 @llvm.experimental.cttz.elts.i16.v4i32(<4 x i32> %a, i1 0)
ret i16 %res
}
; ZERO IS POISON
define i8 @ctz_v8i16_poison(<8 x i16> %a) {
; CHECK-LABEL: .LCPI2_0:
; CHECK-NEXT: .short 8
; CHECK-NEXT: .short 7
; CHECK-NEXT: .short 6
; CHECK-NEXT: .short 5
; CHECK-NEXT: .short 4
; CHECK-NEXT: .short 3
; CHECK-NEXT: .short 2
; CHECK-NEXT: .short 1
; CHECK-LABEL: ctz_v8i16_poison:
; CHECK: # %bb.0:
; CHECK-NEXT: pxor %xmm1, %xmm1
; CHECK-NEXT: pcmpeqw %xmm0, %xmm1
; CHECK-NEXT: pandn {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1
; CHECK-NEXT: pshufd {{.*#+}} xmm0 = xmm1[2,3,2,3]
; CHECK-NEXT: psubusw %xmm1, %xmm0
; CHECK-NEXT: paddw %xmm1, %xmm0
; CHECK-NEXT: pshufd {{.*#+}} xmm1 = xmm0[1,1,1,1]
; CHECK-NEXT: psubusw %xmm0, %xmm1
; CHECK-NEXT: paddw %xmm0, %xmm1
; CHECK-NEXT: pextrw $1, %xmm1, %ecx
; CHECK-NEXT: movd %xmm1, %eax
; CHECK-NEXT: cmpw %cx, %ax
; CHECK-NEXT: cmoval %eax, %ecx
; CHECK-NEXT: movl $8, %eax
; CHECK-NEXT: subl %ecx, %eax
; CHECK-NEXT: # kill: def $al killed $al killed $eax
; CHECK-NEXT: retq
%res = call i8 @llvm.experimental.cttz.elts.i8.v8i16(<8 x i16> %a, i1 1)
ret i8 %res
}
declare i8 @llvm.experimental.cttz.elts.i8.v8i16(<8 x i16>, i1)
declare i16 @llvm.experimental.cttz.elts.i16.v4i32(<4 x i32>, i1)