forked from OSchip/llvm-project
529 lines
17 KiB
LLVM
529 lines
17 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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define i1 @is_pow2or0_negate_op(i32 %x) {
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; CHECK-LABEL: @is_pow2or0_negate_op(
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[TMP1]], 2
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg = sub i32 0, %x
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%and = and i32 %neg, %x
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%cmp = icmp eq i32 %and, %x
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ret i1 %cmp
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}
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define <2 x i1> @is_pow2or0_negate_op_vec(<2 x i32> %x) {
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; CHECK-LABEL: @is_pow2or0_negate_op_vec(
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; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[X:%.*]])
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult <2 x i32> [[TMP1]], <i32 2, i32 2>
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; CHECK-NEXT: ret <2 x i1> [[CMP]]
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;
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%neg = sub <2 x i32> zeroinitializer, %x
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%and = and <2 x i32> %neg, %x
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%cmp = icmp eq <2 x i32> %and, %x
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ret <2 x i1> %cmp
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}
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define i1 @is_pow2or0_decrement_op(i8 %x) {
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; CHECK-LABEL: @is_pow2or0_decrement_op(
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; CHECK-NEXT: [[TMP1:%.*]] = call i8 @llvm.ctpop.i8(i8 [[X:%.*]]), !range !1
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[TMP1]], 2
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%dec = add i8 %x, -1
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%and = and i8 %dec, %x
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%cmp = icmp eq i8 %and, 0
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ret i1 %cmp
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}
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define <2 x i1> @is_pow2or0_decrement_op_vec(<2 x i8> %x) {
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; CHECK-LABEL: @is_pow2or0_decrement_op_vec(
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; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult <2 x i8> [[TMP1]], <i8 2, i8 2>
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; CHECK-NEXT: ret <2 x i1> [[CMP]]
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;
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%dec = add <2 x i8> %x, <i8 -1, i8 -1>
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%and = and <2 x i8> %dec, %x
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%cmp = icmp eq <2 x i8> %and, zeroinitializer
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ret <2 x i1> %cmp
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}
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define i1 @isnot_pow2or0_negate_op(i32 %x) {
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; CHECK-LABEL: @isnot_pow2or0_negate_op(
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[TMP1]], 1
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg = sub i32 0, %x
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%and = and i32 %neg, %x
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%cmp = icmp ne i32 %and, %x
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ret i1 %cmp
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}
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define <2 x i1> @isnot_pow2or0_negate_op_vec(<2 x i32> %x) {
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; CHECK-LABEL: @isnot_pow2or0_negate_op_vec(
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; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[X:%.*]])
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt <2 x i32> [[TMP1]], <i32 1, i32 1>
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; CHECK-NEXT: ret <2 x i1> [[CMP]]
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;
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%neg = sub <2 x i32> zeroinitializer, %x
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%and = and <2 x i32> %neg, %x
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%cmp = icmp ne <2 x i32> %and, %x
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ret <2 x i1> %cmp
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}
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define i1 @isnot_pow2or0_decrement_op(i8 %x) {
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; CHECK-LABEL: @isnot_pow2or0_decrement_op(
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; CHECK-NEXT: [[TMP1:%.*]] = call i8 @llvm.ctpop.i8(i8 [[X:%.*]]), !range !1
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[TMP1]], 1
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%dec = add i8 %x, -1
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%and = and i8 %dec, %x
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%cmp = icmp ne i8 %and, 0
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ret i1 %cmp
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}
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define <2 x i1> @isnot_pow2or0_decrement_op_vec(<2 x i8> %x) {
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; CHECK-LABEL: @isnot_pow2or0_decrement_op_vec(
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; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt <2 x i8> [[TMP1]], <i8 1, i8 1>
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; CHECK-NEXT: ret <2 x i1> [[CMP]]
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;
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%dec = add <2 x i8> %x, <i8 -1, i8 -1>
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%and = and <2 x i8> %dec, %x
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%cmp = icmp ne <2 x i8> %and, zeroinitializer
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ret <2 x i1> %cmp
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}
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define i1 @is_pow2or0_negate_op_commute1(i32 %p) {
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; CHECK-LABEL: @is_pow2or0_negate_op_commute1(
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; CHECK-NEXT: [[X:%.*]] = srem i32 42, [[P:%.*]]
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.ctpop.i32(i32 [[X]]), !range !2
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[TMP1]], 2
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%x = srem i32 42, %p ; thwart complexity-based canonicalization
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%neg = sub i32 0, %x
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%and = and i32 %x, %neg
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%cmp = icmp eq i32 %and, %x
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ret i1 %cmp
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}
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; x can't be <= complexity of the 'neg' but >= complexity of the 'and'.
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define i1 @isnot_pow2or0_negate_op_commute2(i32 %p) {
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; CHECK-LABEL: @isnot_pow2or0_negate_op_commute2(
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; CHECK-NEXT: [[X:%.*]] = urem i32 42, [[P:%.*]]
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.ctpop.i32(i32 [[X]]), !range !3
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[TMP1]], 1
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%x = urem i32 42, %p ; thwart complexity-based canonicalization
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%neg = sub i32 0, %x
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%and = and i32 %neg, %x
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%cmp = icmp ne i32 %x, %and
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ret i1 %cmp
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}
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define i1 @isnot_pow2or0_negate_op_commute3(i32 %p) {
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; CHECK-LABEL: @isnot_pow2or0_negate_op_commute3(
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; CHECK-NEXT: [[X:%.*]] = urem i32 42, [[P:%.*]]
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.ctpop.i32(i32 [[X]]), !range !3
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[TMP1]], 1
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%x = urem i32 42, %p ; thwart complexity-based canonicalization
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%neg = sub i32 0, %x
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%and = and i32 %x, %neg
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%cmp = icmp ne i32 %x, %and
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ret i1 %cmp
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}
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declare void @use(i32)
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define i1 @is_pow2or0_negate_op_extra_use1(i32 %x) {
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; CHECK-LABEL: @is_pow2or0_negate_op_extra_use1(
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; CHECK-NEXT: [[NEG:%.*]] = sub i32 0, [[X:%.*]]
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; CHECK-NEXT: call void @use(i32 [[NEG]])
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.ctpop.i32(i32 [[X]]), !range !0
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[TMP1]], 2
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg = sub i32 0, %x
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call void @use(i32 %neg)
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%and = and i32 %neg, %x
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%cmp = icmp eq i32 %and, %x
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ret i1 %cmp
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}
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define i1 @is_pow2or0_negate_op_extra_use2(i32 %x) {
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; CHECK-LABEL: @is_pow2or0_negate_op_extra_use2(
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; CHECK-NEXT: [[NEG:%.*]] = sub i32 0, [[X:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i32 [[NEG]], [[X]]
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; CHECK-NEXT: call void @use(i32 [[AND]])
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], [[X]]
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg = sub i32 0, %x
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%and = and i32 %neg, %x
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call void @use(i32 %and)
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%cmp = icmp eq i32 %and, %x
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ret i1 %cmp
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}
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declare i32 @llvm.ctpop.i32(i32)
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declare <2 x i8> @llvm.ctpop.v2i8(<2 x i8>)
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; (X != 0) && (ctpop(X) u< 2) --> ctpop(X) == 1
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define i1 @is_pow2_ctpop(i32 %x) {
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; CHECK-LABEL: @is_pow2_ctpop(
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; CHECK-NEXT: [[T0:%.*]] = tail call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[T0]], 1
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
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%cmp = icmp ult i32 %t0, 2
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%notzero = icmp ne i32 %x, 0
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%r = and i1 %notzero, %cmp
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ret i1 %r
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}
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; Extra uses don't change the fold.
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declare void @use_i1(i1)
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define i1 @is_pow2_ctpop_extra_uses(i32 %x) {
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; CHECK-LABEL: @is_pow2_ctpop_extra_uses(
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; CHECK-NEXT: [[T0:%.*]] = tail call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 2
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; CHECK-NEXT: call void @use_i1(i1 [[CMP]])
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; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 0
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; CHECK-NEXT: call void @use_i1(i1 [[NOTZERO]])
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[T0]], 1
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
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%cmp = icmp ult i32 %t0, 2
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call void @use_i1(i1 %cmp)
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%notzero = icmp ne i32 %x, 0
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call void @use_i1(i1 %notzero)
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%r = and i1 %notzero, %cmp
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ret i1 %r
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}
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; Test vector type and commuted 'and' operands.
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define <2 x i1> @is_pow2_ctpop_commute_vec(<2 x i8> %x) {
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; CHECK-LABEL: @is_pow2_ctpop_commute_vec(
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; CHECK-NEXT: [[T0:%.*]] = tail call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq <2 x i8> [[T0]], <i8 1, i8 1>
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; CHECK-NEXT: ret <2 x i1> [[TMP1]]
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;
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%t0 = tail call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %x)
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%cmp = icmp ult <2 x i8> %t0, <i8 2, i8 2>
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%notzero = icmp ne <2 x i8> %x, zeroinitializer
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%r = and <2 x i1> %cmp, %notzero
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ret <2 x i1> %r
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}
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; Negative test - wrong constant.
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define i1 @is_pow2_ctpop_wrong_cmp_op1(i32 %x) {
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; CHECK-LABEL: @is_pow2_ctpop_wrong_cmp_op1(
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; CHECK-NEXT: [[T0:%.*]] = tail call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 3
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; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 0
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; CHECK-NEXT: [[R:%.*]] = and i1 [[NOTZERO]], [[CMP]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
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%cmp = icmp ult i32 %t0, 3
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%notzero = icmp ne i32 %x, 0
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%r = and i1 %notzero, %cmp
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ret i1 %r
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}
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; Negative test - wrong constant.
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define i1 @is_pow2_ctpop_wrong_cmp_op2(i32 %x) {
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; CHECK-LABEL: @is_pow2_ctpop_wrong_cmp_op2(
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; CHECK-NEXT: [[T0:%.*]] = tail call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 2
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; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 1
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; CHECK-NEXT: [[R:%.*]] = and i1 [[NOTZERO]], [[CMP]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
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%cmp = icmp ult i32 %t0, 2
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%notzero = icmp ne i32 %x, 1
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%r = and i1 %notzero, %cmp
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ret i1 %r
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}
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; Negative test - wrong predicate.
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define i1 @is_pow2_ctpop_wrong_pred1(i32 %x) {
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; CHECK-LABEL: @is_pow2_ctpop_wrong_pred1(
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; CHECK-NEXT: [[T0:%.*]] = tail call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 2
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; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 0
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; CHECK-NEXT: [[R:%.*]] = and i1 [[NOTZERO]], [[CMP]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
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%cmp = icmp ugt i32 %t0, 2
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%notzero = icmp ne i32 %x, 0
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%r = and i1 %notzero, %cmp
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ret i1 %r
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}
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; Negative test - wrong predicate.
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define i1 @is_pow2_ctpop_wrong_pred2(i32 %x) {
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; CHECK-LABEL: @is_pow2_ctpop_wrong_pred2(
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; CHECK-NEXT: [[T0:%.*]] = tail call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 2
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; CHECK-NEXT: [[CMP2:%.*]] = icmp sgt i32 [[X]], 0
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; CHECK-NEXT: [[R:%.*]] = and i1 [[CMP2]], [[CMP]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
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%cmp = icmp ult i32 %t0, 2
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%cmp2 = icmp sgt i32 %x, 0
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%r = and i1 %cmp2, %cmp
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ret i1 %r
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}
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; (X == 0) || (ctpop(X) u> 1) --> ctpop(X) != 1
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define i1 @isnot_pow2_ctpop(i32 %x) {
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; CHECK-LABEL: @isnot_pow2_ctpop(
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; CHECK-NEXT: [[T0:%.*]] = tail call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i32 [[T0]], 1
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
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%cmp = icmp ugt i32 %t0, 1
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%iszero = icmp eq i32 %x, 0
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%r = or i1 %iszero, %cmp
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ret i1 %r
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}
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; Extra uses don't change the fold.
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define i1 @isnot_pow2_ctpop_extra_uses(i32 %x) {
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; CHECK-LABEL: @isnot_pow2_ctpop_extra_uses(
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; CHECK-NEXT: [[T0:%.*]] = tail call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 1
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; CHECK-NEXT: call void @use_i1(i1 [[CMP]])
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; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq i32 [[X]], 0
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; CHECK-NEXT: call void @use_i1(i1 [[ISZERO]])
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i32 [[T0]], 1
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
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%cmp = icmp ugt i32 %t0, 1
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call void @use_i1(i1 %cmp)
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%iszero = icmp eq i32 %x, 0
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call void @use_i1(i1 %iszero)
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%r = or i1 %iszero, %cmp
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ret i1 %r
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}
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; Test vector type and commuted 'or' operands.
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define <2 x i1> @isnot_pow2_ctpop_commute_vec(<2 x i8> %x) {
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; CHECK-LABEL: @isnot_pow2_ctpop_commute_vec(
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; CHECK-NEXT: [[T0:%.*]] = tail call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ne <2 x i8> [[T0]], <i8 1, i8 1>
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; CHECK-NEXT: ret <2 x i1> [[TMP1]]
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;
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%t0 = tail call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %x)
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%cmp = icmp ugt <2 x i8> %t0, <i8 1, i8 1>
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%iszero = icmp eq <2 x i8> %x, zeroinitializer
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%r = or <2 x i1> %cmp, %iszero
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ret <2 x i1> %r
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}
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; Negative test - wrong constant.
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define i1 @isnot_pow2_ctpop_wrong_cmp_op1(i32 %x) {
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; CHECK-LABEL: @isnot_pow2_ctpop_wrong_cmp_op1(
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; CHECK-NEXT: [[T0:%.*]] = tail call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 2
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; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq i32 [[X]], 0
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; CHECK-NEXT: [[R:%.*]] = or i1 [[ISZERO]], [[CMP]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
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%cmp = icmp ugt i32 %t0, 2
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%iszero = icmp eq i32 %x, 0
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%r = or i1 %iszero, %cmp
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ret i1 %r
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}
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; Negative test - wrong constant.
|
|
|
|
define i1 @isnot_pow2_ctpop_wrong_cmp_op2(i32 %x) {
|
|
; CHECK-LABEL: @isnot_pow2_ctpop_wrong_cmp_op2(
|
|
; CHECK-NEXT: [[T0:%.*]] = tail call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 1
|
|
; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq i32 [[X]], 1
|
|
; CHECK-NEXT: [[R:%.*]] = or i1 [[ISZERO]], [[CMP]]
|
|
; CHECK-NEXT: ret i1 [[R]]
|
|
;
|
|
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
|
|
%cmp = icmp ugt i32 %t0, 1
|
|
%iszero = icmp eq i32 %x, 1
|
|
%r = or i1 %iszero, %cmp
|
|
ret i1 %r
|
|
}
|
|
|
|
; Negative test - wrong predicate (but this could reduce).
|
|
|
|
define i1 @isnot_pow2_ctpop_wrong_pred1(i32 %x) {
|
|
; CHECK-LABEL: @isnot_pow2_ctpop_wrong_pred1(
|
|
; CHECK-NEXT: [[T0:%.*]] = tail call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[T0]], 1
|
|
; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq i32 [[X]], 0
|
|
; CHECK-NEXT: [[R:%.*]] = or i1 [[ISZERO]], [[CMP]]
|
|
; CHECK-NEXT: ret i1 [[R]]
|
|
;
|
|
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
|
|
%cmp = icmp eq i32 %t0, 1
|
|
%iszero = icmp eq i32 %x, 0
|
|
%r = or i1 %iszero, %cmp
|
|
ret i1 %r
|
|
}
|
|
|
|
; Negative test - wrong predicate.
|
|
|
|
define i1 @isnot_pow2_ctpop_wrong_pred2(i32 %x) {
|
|
; CHECK-LABEL: @isnot_pow2_ctpop_wrong_pred2(
|
|
; CHECK-NEXT: [[T0:%.*]] = tail call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 1
|
|
; CHECK-NEXT: [[CMP2:%.*]] = icmp slt i32 [[X]], 0
|
|
; CHECK-NEXT: [[R:%.*]] = or i1 [[CMP2]], [[CMP]]
|
|
; CHECK-NEXT: ret i1 [[R]]
|
|
;
|
|
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
|
|
%cmp = icmp ugt i32 %t0, 1
|
|
%cmp2 = icmp slt i32 %x, 0
|
|
%r = or i1 %cmp2, %cmp
|
|
ret i1 %r
|
|
}
|
|
|
|
define i1 @is_pow2_negate_op(i32 %x) {
|
|
; CHECK-LABEL: @is_pow2_negate_op(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
|
|
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 1
|
|
; CHECK-NEXT: ret i1 [[TMP2]]
|
|
;
|
|
%neg = sub i32 0, %x
|
|
%and = and i32 %neg, %x
|
|
%cmp = icmp eq i32 %and, %x
|
|
%notzero = icmp ne i32 %x, 0
|
|
%r = and i1 %notzero, %cmp
|
|
ret i1 %r
|
|
}
|
|
|
|
define <2 x i1> @is_pow2_negate_op_vec(<2 x i32> %x) {
|
|
; CHECK-LABEL: @is_pow2_negate_op_vec(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[X:%.*]])
|
|
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq <2 x i32> [[TMP1]], <i32 1, i32 1>
|
|
; CHECK-NEXT: ret <2 x i1> [[TMP2]]
|
|
;
|
|
%neg = sub <2 x i32> zeroinitializer, %x
|
|
%and = and <2 x i32> %neg, %x
|
|
%cmp = icmp eq <2 x i32> %and, %x
|
|
%notzero = icmp ne <2 x i32> %x, zeroinitializer
|
|
%r = and <2 x i1> %cmp, %notzero
|
|
ret <2 x i1> %r
|
|
}
|
|
|
|
define i1 @is_pow2_decrement_op(i8 %x) {
|
|
; CHECK-LABEL: @is_pow2_decrement_op(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i8 @llvm.ctpop.i8(i8 [[X:%.*]]), !range !1
|
|
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i8 [[TMP1]], 1
|
|
; CHECK-NEXT: ret i1 [[TMP2]]
|
|
;
|
|
%dec = add i8 %x, -1
|
|
%and = and i8 %dec, %x
|
|
%cmp = icmp eq i8 %and, 0
|
|
%notzero = icmp ne i8 %x, 0
|
|
%r = and i1 %cmp, %notzero
|
|
ret i1 %r
|
|
}
|
|
|
|
define <2 x i1> @is_pow2_decrement_op_vec(<2 x i8> %x) {
|
|
; CHECK-LABEL: @is_pow2_decrement_op_vec(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
|
|
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq <2 x i8> [[TMP1]], <i8 1, i8 1>
|
|
; CHECK-NEXT: ret <2 x i1> [[TMP2]]
|
|
;
|
|
%dec = add <2 x i8> %x, <i8 -1, i8 -1>
|
|
%and = and <2 x i8> %dec, %x
|
|
%cmp = icmp eq <2 x i8> %and, zeroinitializer
|
|
%notzero = icmp ne <2 x i8> %x, zeroinitializer
|
|
%r = and <2 x i1> %notzero, %cmp
|
|
ret <2 x i1> %r
|
|
}
|
|
|
|
define i1 @isnot_pow2_negate_op(i32 %x) {
|
|
; CHECK-LABEL: @isnot_pow2_negate_op(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range !0
|
|
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i32 [[TMP1]], 1
|
|
; CHECK-NEXT: ret i1 [[TMP2]]
|
|
;
|
|
%neg = sub i32 0, %x
|
|
%and = and i32 %neg, %x
|
|
%cmp = icmp ne i32 %and, %x
|
|
%iszero = icmp eq i32 %x, 0
|
|
%r = or i1 %cmp, %iszero
|
|
ret i1 %r
|
|
}
|
|
|
|
define <2 x i1> @isnot_pow2_negate_op_vec(<2 x i32> %x) {
|
|
; CHECK-LABEL: @isnot_pow2_negate_op_vec(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[X:%.*]])
|
|
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne <2 x i32> [[TMP1]], <i32 1, i32 1>
|
|
; CHECK-NEXT: ret <2 x i1> [[TMP2]]
|
|
;
|
|
%neg = sub <2 x i32> zeroinitializer, %x
|
|
%and = and <2 x i32> %neg, %x
|
|
%cmp = icmp ne <2 x i32> %and, %x
|
|
%iszero = icmp eq <2 x i32> %x, zeroinitializer
|
|
%r = or <2 x i1> %iszero, %cmp
|
|
ret <2 x i1> %r
|
|
}
|
|
|
|
define i1 @isnot_pow2_decrement_op(i8 %x) {
|
|
; CHECK-LABEL: @isnot_pow2_decrement_op(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i8 @llvm.ctpop.i8(i8 [[X:%.*]]), !range !1
|
|
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i8 [[TMP1]], 1
|
|
; CHECK-NEXT: ret i1 [[TMP2]]
|
|
;
|
|
%dec = add i8 %x, -1
|
|
%and = and i8 %dec, %x
|
|
%cmp = icmp ne i8 %and, 0
|
|
%iszero = icmp eq i8 %x, 0
|
|
%r = or i1 %iszero, %cmp
|
|
ret i1 %r
|
|
}
|
|
|
|
define <2 x i1> @isnot_pow2_decrement_op_vec(<2 x i8> %x) {
|
|
; CHECK-LABEL: @isnot_pow2_decrement_op_vec(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
|
|
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne <2 x i8> [[TMP1]], <i8 1, i8 1>
|
|
; CHECK-NEXT: ret <2 x i1> [[TMP2]]
|
|
;
|
|
%dec = add <2 x i8> %x, <i8 -1, i8 -1>
|
|
%and = and <2 x i8> %dec, %x
|
|
%cmp = icmp ne <2 x i8> %and, zeroinitializer
|
|
%iszero = icmp eq <2 x i8> %x, zeroinitializer
|
|
%r = or <2 x i1> %cmp, %iszero
|
|
ret <2 x i1> %r
|
|
}
|