signbit-shift.ll
9.58 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s
; If positive...
define i32 @zext_ifpos(i32 %x) {
; CHECK-LABEL: zext_ifpos:
; CHECK: # %bb.0:
; CHECK-NEXT: movl %edi, %eax
; CHECK-NEXT: notl %eax
; CHECK-NEXT: shrl $31, %eax
; CHECK-NEXT: retq
%c = icmp sgt i32 %x, -1
%e = zext i1 %c to i32
ret i32 %e
}
define i32 @add_zext_ifpos(i32 %x) {
; CHECK-LABEL: add_zext_ifpos:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: sarl $31, %edi
; CHECK-NEXT: leal 42(%rdi), %eax
; CHECK-NEXT: retq
%c = icmp sgt i32 %x, -1
%e = zext i1 %c to i32
%r = add i32 %e, 41
ret i32 %r
}
define <4 x i32> @add_zext_ifpos_vec_splat(<4 x i32> %x) {
; CHECK-LABEL: add_zext_ifpos_vec_splat:
; CHECK: # %bb.0:
; CHECK-NEXT: pcmpeqd %xmm1, %xmm1
; CHECK-NEXT: pcmpgtd %xmm1, %xmm0
; CHECK-NEXT: movdqa {{.*#+}} xmm1 = [42,42,42,42]
; CHECK-NEXT: psubd %xmm0, %xmm1
; CHECK-NEXT: movdqa %xmm1, %xmm0
; CHECK-NEXT: retq
%c = icmp sgt <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
%e = zext <4 x i1> %c to <4 x i32>
%r = add <4 x i32> %e, <i32 42, i32 42, i32 42, i32 42>
ret <4 x i32> %r
}
define <4 x i32> @add_zext_ifpos_vec_nonsplat(<4 x i32> %x) {
; CHECK-LABEL: add_zext_ifpos_vec_nonsplat:
; CHECK: # %bb.0:
; CHECK-NEXT: pcmpeqd %xmm1, %xmm1
; CHECK-NEXT: pcmpgtd %xmm1, %xmm0
; CHECK-NEXT: movdqa {{.*#+}} xmm1 = [42,43,44,45]
; CHECK-NEXT: psubd %xmm0, %xmm1
; CHECK-NEXT: movdqa %xmm1, %xmm0
; CHECK-NEXT: retq
%c = icmp sgt <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
%e = zext <4 x i1> %c to <4 x i32>
%r = add <4 x i32> %e, <i32 42, i32 43, i32 44, i32 45>
ret <4 x i32> %r
}
define i32 @sel_ifpos_tval_bigger(i32 %x) {
; CHECK-LABEL: sel_ifpos_tval_bigger:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: sarl $31, %edi
; CHECK-NEXT: leal 42(%rdi), %eax
; CHECK-NEXT: retq
%c = icmp sgt i32 %x, -1
%r = select i1 %c, i32 42, i32 41
ret i32 %r
}
define i32 @sext_ifpos(i32 %x) {
; CHECK-LABEL: sext_ifpos:
; CHECK: # %bb.0:
; CHECK-NEXT: movl %edi, %eax
; CHECK-NEXT: notl %eax
; CHECK-NEXT: sarl $31, %eax
; CHECK-NEXT: retq
%c = icmp sgt i32 %x, -1
%e = sext i1 %c to i32
ret i32 %e
}
define i32 @add_sext_ifpos(i32 %x) {
; CHECK-LABEL: add_sext_ifpos:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: shrl $31, %edi
; CHECK-NEXT: leal 41(%rdi), %eax
; CHECK-NEXT: retq
%c = icmp sgt i32 %x, -1
%e = sext i1 %c to i32
%r = add i32 %e, 42
ret i32 %r
}
define <4 x i32> @add_sext_ifpos_vec_splat(<4 x i32> %x) {
; CHECK-LABEL: add_sext_ifpos_vec_splat:
; CHECK: # %bb.0:
; CHECK-NEXT: pcmpeqd %xmm1, %xmm1
; CHECK-NEXT: pcmpgtd %xmm1, %xmm0
; CHECK-NEXT: paddd {{.*}}(%rip), %xmm0
; CHECK-NEXT: retq
%c = icmp sgt <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
%e = sext <4 x i1> %c to <4 x i32>
%r = add <4 x i32> %e, <i32 42, i32 42, i32 42, i32 42>
ret <4 x i32> %r
}
define <4 x i32> @add_sext_ifpos_vec_nonsplat(<4 x i32> %x) {
; CHECK-LABEL: add_sext_ifpos_vec_nonsplat:
; CHECK: # %bb.0:
; CHECK-NEXT: pcmpeqd %xmm1, %xmm1
; CHECK-NEXT: pcmpgtd %xmm1, %xmm0
; CHECK-NEXT: paddd {{.*}}(%rip), %xmm0
; CHECK-NEXT: retq
%c = icmp sgt <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
%e = sext <4 x i1> %c to <4 x i32>
%r = add <4 x i32> %e, <i32 42, i32 43, i32 44, i32 45>
ret <4 x i32> %r
}
define i32 @sel_ifpos_fval_bigger(i32 %x) {
; CHECK-LABEL: sel_ifpos_fval_bigger:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: shrl $31, %edi
; CHECK-NEXT: leal 41(%rdi), %eax
; CHECK-NEXT: retq
%c = icmp sgt i32 %x, -1
%r = select i1 %c, i32 41, i32 42
ret i32 %r
}
; If negative...
define i32 @zext_ifneg(i32 %x) {
; CHECK-LABEL: zext_ifneg:
; CHECK: # %bb.0:
; CHECK-NEXT: movl %edi, %eax
; CHECK-NEXT: shrl $31, %eax
; CHECK-NEXT: retq
%c = icmp slt i32 %x, 0
%r = zext i1 %c to i32
ret i32 %r
}
define i32 @add_zext_ifneg(i32 %x) {
; CHECK-LABEL: add_zext_ifneg:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: shrl $31, %edi
; CHECK-NEXT: leal 41(%rdi), %eax
; CHECK-NEXT: retq
%c = icmp slt i32 %x, 0
%e = zext i1 %c to i32
%r = add i32 %e, 41
ret i32 %r
}
define i32 @sel_ifneg_tval_bigger(i32 %x) {
; CHECK-LABEL: sel_ifneg_tval_bigger:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: shrl $31, %edi
; CHECK-NEXT: leal 41(%rdi), %eax
; CHECK-NEXT: retq
%c = icmp slt i32 %x, 0
%r = select i1 %c, i32 42, i32 41
ret i32 %r
}
define i32 @sext_ifneg(i32 %x) {
; CHECK-LABEL: sext_ifneg:
; CHECK: # %bb.0:
; CHECK-NEXT: movl %edi, %eax
; CHECK-NEXT: sarl $31, %eax
; CHECK-NEXT: retq
%c = icmp slt i32 %x, 0
%r = sext i1 %c to i32
ret i32 %r
}
define i32 @add_sext_ifneg(i32 %x) {
; CHECK-LABEL: add_sext_ifneg:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: sarl $31, %edi
; CHECK-NEXT: leal 42(%rdi), %eax
; CHECK-NEXT: retq
%c = icmp slt i32 %x, 0
%e = sext i1 %c to i32
%r = add i32 %e, 42
ret i32 %r
}
define i32 @sel_ifneg_fval_bigger(i32 %x) {
; CHECK-LABEL: sel_ifneg_fval_bigger:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: sarl $31, %edi
; CHECK-NEXT: leal 42(%rdi), %eax
; CHECK-NEXT: retq
%c = icmp slt i32 %x, 0
%r = select i1 %c, i32 41, i32 42
ret i32 %r
}
define i32 @add_lshr_not(i32 %x) {
; CHECK-LABEL: add_lshr_not:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: sarl $31, %edi
; CHECK-NEXT: leal 42(%rdi), %eax
; CHECK-NEXT: retq
%not = xor i32 %x, -1
%sh = lshr i32 %not, 31
%r = add i32 %sh, 41
ret i32 %r
}
define <4 x i32> @add_lshr_not_vec_splat(<4 x i32> %x) {
; CHECK-LABEL: add_lshr_not_vec_splat:
; CHECK: # %bb.0:
; CHECK-NEXT: psrad $31, %xmm0
; CHECK-NEXT: paddd {{.*}}(%rip), %xmm0
; CHECK-NEXT: retq
%c = xor <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
%e = lshr <4 x i32> %c, <i32 31, i32 31, i32 31, i32 31>
%r = add <4 x i32> %e, <i32 42, i32 42, i32 42, i32 42>
ret <4 x i32> %r
}
define <4 x i32> @add_lshr_not_vec_nonsplat(<4 x i32> %x) {
; CHECK-LABEL: add_lshr_not_vec_nonsplat:
; CHECK: # %bb.0:
; CHECK-NEXT: psrad $31, %xmm0
; CHECK-NEXT: paddd {{.*}}(%rip), %xmm0
; CHECK-NEXT: retq
%c = xor <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
%e = lshr <4 x i32> %c, <i32 31, i32 31, i32 31, i32 31>
%r = add <4 x i32> %e, <i32 42, i32 43, i32 44, i32 45>
ret <4 x i32> %r
}
define i32 @sub_lshr_not(i32 %x) {
; CHECK-LABEL: sub_lshr_not:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: shrl $31, %edi
; CHECK-NEXT: leal 42(%rdi), %eax
; CHECK-NEXT: retq
%not = xor i32 %x, -1
%sh = lshr i32 %not, 31
%r = sub i32 43, %sh
ret i32 %r
}
define <4 x i32> @sub_lshr_not_vec_splat(<4 x i32> %x) {
; CHECK-LABEL: sub_lshr_not_vec_splat:
; CHECK: # %bb.0:
; CHECK-NEXT: psrld $31, %xmm0
; CHECK-NEXT: paddd {{.*}}(%rip), %xmm0
; CHECK-NEXT: retq
%c = xor <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
%e = lshr <4 x i32> %c, <i32 31, i32 31, i32 31, i32 31>
%r = sub <4 x i32> <i32 42, i32 42, i32 42, i32 42>, %e
ret <4 x i32> %r
}
define <4 x i32> @sub_lshr_not_vec_nonsplat(<4 x i32> %x) {
; CHECK-LABEL: sub_lshr_not_vec_nonsplat:
; CHECK: # %bb.0:
; CHECK-NEXT: psrld $31, %xmm0
; CHECK-NEXT: paddd {{.*}}(%rip), %xmm0
; CHECK-NEXT: retq
%c = xor <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
%e = lshr <4 x i32> %c, <i32 31, i32 31, i32 31, i32 31>
%r = sub <4 x i32> <i32 42, i32 43, i32 44, i32 45>, %e
ret <4 x i32> %r
}
define i32 @sub_lshr(i32 %x, i32 %y) {
; CHECK-LABEL: sub_lshr:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $esi killed $esi def $rsi
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: sarl $31, %edi
; CHECK-NEXT: leal (%rdi,%rsi), %eax
; CHECK-NEXT: retq
%sh = lshr i32 %x, 31
%r = sub i32 %y, %sh
ret i32 %r
}
define <4 x i32> @sub_lshr_vec(<4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: sub_lshr_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: psrad $31, %xmm0
; CHECK-NEXT: paddd %xmm1, %xmm0
; CHECK-NEXT: retq
%sh = lshr <4 x i32> %x, <i32 31, i32 31, i32 31, i32 31>
%r = sub <4 x i32> %y, %sh
ret <4 x i32> %r
}
define i32 @sub_const_op_lshr(i32 %x) {
; CHECK-LABEL: sub_const_op_lshr:
; CHECK: # %bb.0:
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
; CHECK-NEXT: sarl $31, %edi
; CHECK-NEXT: leal 43(%rdi), %eax
; CHECK-NEXT: retq
%sh = lshr i32 %x, 31
%r = sub i32 43, %sh
ret i32 %r
}
define <4 x i32> @sub_const_op_lshr_vec_splat(<4 x i32> %x) {
; CHECK-LABEL: sub_const_op_lshr_vec_splat:
; CHECK: # %bb.0:
; CHECK-NEXT: psrad $31, %xmm0
; CHECK-NEXT: paddd {{.*}}(%rip), %xmm0
; CHECK-NEXT: retq
%sh = lshr <4 x i32> %x, <i32 31, i32 31, i32 31, i32 31>
%r = sub <4 x i32> <i32 42, i32 42, i32 42, i32 42>, %sh
ret <4 x i32> %r
}
define <4 x i32> @sub_const_op_lshr_vec_nonsplat(<4 x i32> %x) {
; CHECK-LABEL: sub_const_op_lshr_vec_nonsplat:
; CHECK: # %bb.0:
; CHECK-NEXT: psrad $31, %xmm0
; CHECK-NEXT: paddd {{.*}}(%rip), %xmm0
; CHECK-NEXT: retq
%sh = lshr <4 x i32> %x, <i32 31, i32 31, i32 31, i32 31>
%r = sub <4 x i32> <i32 42, i32 43, i32 44, i32 45>, %sh
ret <4 x i32> %r
}