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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-- | FileCheck %s --check-prefixes=X86,X86-BSR
; RUN: llc < %s -mtriple=i686-- -mattr=+lzcnt,+cmov | FileCheck %s --check-prefixes=X86,X86-LZCNT
; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s --check-prefixes=X64,X64-BSR
; RUN: llc < %s -mtriple=x86_64-- -mattr=+lzcnt | FileCheck %s --check-prefixes=X64,X64-LZCNT
define i1 @lshr_ctlz_cmpeq_one_i64(i64 %in) nounwind {
; X86-LABEL: lshr_ctlz_cmpeq_one_i64:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: orl {{[0-9]+}}(%esp), %eax
; X86-NEXT: sete %al
; X86-NEXT: retl
;
; X64-LABEL: lshr_ctlz_cmpeq_one_i64:
; X64: # %bb.0:
; X64-NEXT: testq %rdi, %rdi
; X64-NEXT: sete %al
; X64-NEXT: retq
%ctlz = call i64 @llvm.ctlz.i64(i64 %in, i1 0)
%lshr = lshr i64 %ctlz, 6
%icmp = icmp eq i64 %lshr, 1
ret i1 %icmp
}
define i1 @lshr_ctlz_undef_cmpeq_one_i64(i64 %in) nounwind {
; X86-BSR-LABEL: lshr_ctlz_undef_cmpeq_one_i64:
; X86-BSR: # %bb.0:
; X86-BSR-NEXT: xorl %eax, %eax
; X86-BSR-NEXT: retl
;
; X86-LZCNT-LABEL: lshr_ctlz_undef_cmpeq_one_i64:
; X86-LZCNT: # %bb.0:
; X86-LZCNT-NEXT: lzcntl {{[0-9]+}}(%esp), %ecx
; X86-LZCNT-NEXT: addl $32, %ecx
; X86-LZCNT-NEXT: xorl %eax, %eax
; X86-LZCNT-NEXT: cmpl $0, {{[0-9]+}}(%esp)
; X86-LZCNT-NEXT: cmovel %ecx, %eax
; X86-LZCNT-NEXT: shrl $6, %eax
; X86-LZCNT-NEXT: # kill: def $al killed $al killed $eax
; X86-LZCNT-NEXT: retl
;
; X64-BSR-LABEL: lshr_ctlz_undef_cmpeq_one_i64:
; X64-BSR: # %bb.0:
; X64-BSR-NEXT: xorl %eax, %eax
; X64-BSR-NEXT: retq
;
; X64-LZCNT-LABEL: lshr_ctlz_undef_cmpeq_one_i64:
; X64-LZCNT: # %bb.0:
; X64-LZCNT-NEXT: lzcntq %rdi, %rax
; X64-LZCNT-NEXT: shrl $6, %eax
; X64-LZCNT-NEXT: # kill: def $al killed $al killed $rax
; X64-LZCNT-NEXT: retq
%ctlz = call i64 @llvm.ctlz.i64(i64 %in, i1 -1)
%lshr = lshr i64 %ctlz, 6
%icmp = icmp eq i64 %lshr, 1
ret i1 %icmp
}
define i1 @lshr_ctlz_cmpne_zero_i64(i64 %in) nounwind {
; X86-LABEL: lshr_ctlz_cmpne_zero_i64:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: orl {{[0-9]+}}(%esp), %eax
; X86-NEXT: sete %al
; X86-NEXT: retl
;
; X64-LABEL: lshr_ctlz_cmpne_zero_i64:
; X64: # %bb.0:
; X64-NEXT: testq %rdi, %rdi
; X64-NEXT: sete %al
; X64-NEXT: retq
%ctlz = call i64 @llvm.ctlz.i64(i64 %in, i1 0)
%lshr = lshr i64 %ctlz, 6
%icmp = icmp ne i64 %lshr, 0
ret i1 %icmp
}
define i1 @lshr_ctlz_undef_cmpne_zero_i64(i64 %in) nounwind {
; X86-BSR-LABEL: lshr_ctlz_undef_cmpne_zero_i64:
; X86-BSR: # %bb.0:
; X86-BSR-NEXT: xorl %eax, %eax
; X86-BSR-NEXT: retl
;
; X86-LZCNT-LABEL: lshr_ctlz_undef_cmpne_zero_i64:
; X86-LZCNT: # %bb.0:
; X86-LZCNT-NEXT: lzcntl {{[0-9]+}}(%esp), %ecx
; X86-LZCNT-NEXT: addl $32, %ecx
; X86-LZCNT-NEXT: xorl %eax, %eax
; X86-LZCNT-NEXT: cmpl $0, {{[0-9]+}}(%esp)
; X86-LZCNT-NEXT: cmovel %ecx, %eax
; X86-LZCNT-NEXT: shrl $6, %eax
; X86-LZCNT-NEXT: # kill: def $al killed $al killed $eax
; X86-LZCNT-NEXT: retl
;
; X64-BSR-LABEL: lshr_ctlz_undef_cmpne_zero_i64:
; X64-BSR: # %bb.0:
; X64-BSR-NEXT: xorl %eax, %eax
; X64-BSR-NEXT: retq
;
; X64-LZCNT-LABEL: lshr_ctlz_undef_cmpne_zero_i64:
; X64-LZCNT: # %bb.0:
; X64-LZCNT-NEXT: lzcntq %rdi, %rax
; X64-LZCNT-NEXT: shrl $6, %eax
; X64-LZCNT-NEXT: # kill: def $al killed $al killed $rax
; X64-LZCNT-NEXT: retq
%ctlz = call i64 @llvm.ctlz.i64(i64 %in, i1 -1)
%lshr = lshr i64 %ctlz, 6
%icmp = icmp ne i64 %lshr, 0
ret i1 %icmp
}
define <2 x i64> @lshr_ctlz_cmpeq_zero_v2i64(<2 x i64> %in) nounwind {
; X86-LABEL: lshr_ctlz_cmpeq_zero_v2i64:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: xorl %ecx, %ecx
; X86-NEXT: orl {{[0-9]+}}(%esp), %edx
; X86-NEXT: setne %cl
; X86-NEXT: negl %ecx
; X86-NEXT: xorl %edx, %edx
; X86-NEXT: orl {{[0-9]+}}(%esp), %esi
; X86-NEXT: setne %dl
; X86-NEXT: negl %edx
; X86-NEXT: movl %edx, 12(%eax)
; X86-NEXT: movl %edx, 8(%eax)
; X86-NEXT: movl %ecx, 4(%eax)
; X86-NEXT: movl %ecx, (%eax)
; X86-NEXT: popl %esi
; X86-NEXT: retl $4
;
; X64-LABEL: lshr_ctlz_cmpeq_zero_v2i64:
; X64: # %bb.0:
; X64-NEXT: pxor %xmm1, %xmm1
; X64-NEXT: pcmpeqd %xmm1, %xmm0
; X64-NEXT: pshufd {{.*#+}} xmm1 = xmm0[1,0,3,2]
; X64-NEXT: pand %xmm1, %xmm0
; X64-NEXT: pcmpeqd %xmm1, %xmm1
; X64-NEXT: pxor %xmm1, %xmm0
; X64-NEXT: retq
%ctlz = call <2 x i64> @llvm.ctlz.v2i64(<2 x i64> %in, i1 0)
%lshr = lshr <2 x i64> %ctlz, <i64 6, i64 6>
%icmp = icmp eq <2 x i64> %lshr, zeroinitializer
%sext = sext <2 x i1> %icmp to <2 x i64>
ret <2 x i64> %sext
}
define <2 x i64> @lshr_ctlz_cmpne_zero_v2i64(<2 x i64> %in) nounwind {
; X86-LABEL: lshr_ctlz_cmpne_zero_v2i64:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: xorl %ecx, %ecx
; X86-NEXT: orl {{[0-9]+}}(%esp), %edx
; X86-NEXT: sete %cl
; X86-NEXT: negl %ecx
; X86-NEXT: xorl %edx, %edx
; X86-NEXT: orl {{[0-9]+}}(%esp), %esi
; X86-NEXT: sete %dl
; X86-NEXT: negl %edx
; X86-NEXT: movl %edx, 12(%eax)
; X86-NEXT: movl %edx, 8(%eax)
; X86-NEXT: movl %ecx, 4(%eax)
; X86-NEXT: movl %ecx, (%eax)
; X86-NEXT: popl %esi
; X86-NEXT: retl $4
;
; X64-LABEL: lshr_ctlz_cmpne_zero_v2i64:
; X64: # %bb.0:
; X64-NEXT: pxor %xmm1, %xmm1
; X64-NEXT: pcmpeqd %xmm1, %xmm0
; X64-NEXT: pshufd {{.*#+}} xmm1 = xmm0[1,0,3,2]
; X64-NEXT: pand %xmm1, %xmm0
; X64-NEXT: retq
%ctlz = call <2 x i64> @llvm.ctlz.v2i64(<2 x i64> %in, i1 0)
%lshr = lshr <2 x i64> %ctlz, <i64 6, i64 6>
%icmp = icmp ne <2 x i64> %lshr, zeroinitializer
%sext = sext <2 x i1> %icmp to <2 x i64>
ret <2 x i64> %sext
}
declare i64 @llvm.ctlz.i64(i64, i1)
declare <2 x i64> @llvm.ctlz.v2i64(<2 x i64>, i1)
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