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llvm-project/llvm/test/Transforms/InstCombine/ispow2.ll
Andreas Jonson b8f3024a31
[InstCombine] Swap out range metadata to range attribute for cttz/ctlz/ctpop (#88776) 
Since all optimizations that use range metadata now also handle range attribute, this patch replaces writes of
range metadata for call instructions to range attributes.
2024-04-25 01:45:50 +08:00

1525 lines
50 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instcombine -S | FileCheck %s
define i1 @is_pow2or0_negate_op(i32 %x) {
; CHECK-LABEL: @is_pow2or0_negate_op(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[TMP1]], 2
; CHECK-NEXT: ret i1 [[CMP]]
;
%neg = sub i32 0, %x
%and = and i32 %neg, %x
%cmp = icmp eq i32 %and, %x
ret i1 %cmp
}
define <2 x i1> @is_pow2or0_negate_op_vec(<2 x i32> %x) {
; CHECK-LABEL: @is_pow2or0_negate_op_vec(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 33) <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult <2 x i32> [[TMP1]], <i32 2, i32 2>
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%neg = sub <2 x i32> zeroinitializer, %x
%and = and <2 x i32> %neg, %x
%cmp = icmp eq <2 x i32> %and, %x
ret <2 x i1> %cmp
}
define i1 @is_pow2or0_decrement_op(i8 %x) {
; CHECK-LABEL: @is_pow2or0_decrement_op(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[TMP1]], 2
; CHECK-NEXT: ret i1 [[CMP]]
;
%dec = add i8 %x, -1
%and = and i8 %dec, %x
%cmp = icmp eq i8 %and, 0
ret i1 %cmp
}
define <2 x i1> @is_pow2or0_decrement_op_vec(<2 x i8> %x) {
; CHECK-LABEL: @is_pow2or0_decrement_op_vec(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult <2 x i8> [[TMP1]], <i8 2, i8 2>
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%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
ret <2 x i1> %cmp
}
define i1 @isnot_pow2or0_negate_op(i32 %x) {
; CHECK-LABEL: @isnot_pow2or0_negate_op(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[CMP]]
;
%neg = sub i32 0, %x
%and = and i32 %neg, %x
%cmp = icmp ne i32 %and, %x
ret i1 %cmp
}
define <2 x i1> @isnot_pow2or0_negate_op_vec(<2 x i32> %x) {
; CHECK-LABEL: @isnot_pow2or0_negate_op_vec(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 33) <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt <2 x i32> [[TMP1]], <i32 1, i32 1>
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%neg = sub <2 x i32> zeroinitializer, %x
%and = and <2 x i32> %neg, %x
%cmp = icmp ne <2 x i32> %and, %x
ret <2 x i1> %cmp
}
define i1 @isnot_pow2or0_decrement_op(i8 %x) {
; CHECK-LABEL: @isnot_pow2or0_decrement_op(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[CMP]]
;
%dec = add i8 %x, -1
%and = and i8 %dec, %x
%cmp = icmp ne i8 %and, 0
ret i1 %cmp
}
define <2 x i1> @isnot_pow2or0_decrement_op_vec(<2 x i8> %x) {
; CHECK-LABEL: @isnot_pow2or0_decrement_op_vec(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt <2 x i8> [[TMP1]], <i8 1, i8 1>
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%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
ret <2 x i1> %cmp
}
define i1 @is_pow2or0_negate_op_commute1(i32 %p) {
; CHECK-LABEL: @is_pow2or0_negate_op_commute1(
; CHECK-NEXT: [[X:%.*]] = srem i32 42, [[P:%.*]]
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 7) i32 @llvm.ctpop.i32(i32 [[X]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[TMP1]], 2
; CHECK-NEXT: ret i1 [[CMP]]
;
%x = srem i32 42, %p ; thwart complexity-based canonicalization
%neg = sub i32 0, %x
%and = and i32 %x, %neg
%cmp = icmp eq i32 %and, %x
ret i1 %cmp
}
; x can't be <= complexity of the 'neg' but >= complexity of the 'and'.
define i1 @isnot_pow2or0_negate_op_commute2(i32 %p) {
; CHECK-LABEL: @isnot_pow2or0_negate_op_commute2(
; CHECK-NEXT: [[X:%.*]] = urem i32 42, [[P:%.*]]
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 7) i32 @llvm.ctpop.i32(i32 [[X]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[CMP]]
;
%x = urem i32 42, %p ; thwart complexity-based canonicalization
%neg = sub i32 0, %x
%and = and i32 %neg, %x
%cmp = icmp ne i32 %x, %and
ret i1 %cmp
}
define i1 @isnot_pow2or0_negate_op_commute3(i32 %p) {
; CHECK-LABEL: @isnot_pow2or0_negate_op_commute3(
; CHECK-NEXT: [[X:%.*]] = urem i32 42, [[P:%.*]]
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 7) i32 @llvm.ctpop.i32(i32 [[X]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[CMP]]
;
%x = urem i32 42, %p ; thwart complexity-based canonicalization
%neg = sub i32 0, %x
%and = and i32 %x, %neg
%cmp = icmp ne i32 %x, %and
ret i1 %cmp
}
declare void @use(i32)
define i1 @is_pow2or0_negate_op_extra_use1(i32 %x) {
; CHECK-LABEL: @is_pow2or0_negate_op_extra_use1(
; CHECK-NEXT: [[NEG:%.*]] = sub i32 0, [[X:%.*]]
; CHECK-NEXT: call void @use(i32 [[NEG]])
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[TMP1]], 2
; CHECK-NEXT: ret i1 [[CMP]]
;
%neg = sub i32 0, %x
call void @use(i32 %neg)
%and = and i32 %neg, %x
%cmp = icmp eq i32 %and, %x
ret i1 %cmp
}
define i1 @is_pow2or0_negate_op_extra_use2(i32 %x) {
; CHECK-LABEL: @is_pow2or0_negate_op_extra_use2(
; CHECK-NEXT: [[NEG:%.*]] = sub i32 0, [[X:%.*]]
; CHECK-NEXT: [[AND:%.*]] = and i32 [[NEG]], [[X]]
; CHECK-NEXT: call void @use(i32 [[AND]])
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], [[X]]
; CHECK-NEXT: ret i1 [[CMP]]
;
%neg = sub i32 0, %x
%and = and i32 %neg, %x
call void @use(i32 %and)
%cmp = icmp eq i32 %and, %x
ret i1 %cmp
}
declare i32 @llvm.ctpop.i32(i32)
declare <2 x i8> @llvm.ctpop.v2i8(<2 x i8>)
declare void @llvm.assume(i1)
; (X != 0) && (ctpop(X) u< 2) --> ctpop(X) == 1
define i1 @is_pow2_ctpop(i32 %x) {
; CHECK-LABEL: @is_pow2_ctpop(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ult i32 %t0, 2
%notzero = icmp ne i32 %x, 0
%r = and i1 %notzero, %cmp
ret i1 %r
}
; tests from PR57328
define i1 @is_pow2_non_zero_ult_2(i32 %x) {
; CHECK-LABEL: @is_pow2_non_zero_ult_2(
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X:%.*]], 0
; CHECK-NEXT: call void @llvm.assume(i1 [[NOTZERO]])
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 2
; CHECK-NEXT: ret i1 [[CMP]]
;
%notzero = icmp ne i32 %x, 0
call void @llvm.assume(i1 %notzero)
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ult i32 %t0, 2
ret i1 %cmp
}
define i1 @is_pow2_non_zero_eq_1(i32 %x) {
; CHECK-LABEL: @is_pow2_non_zero_eq_1(
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X:%.*]], 0
; CHECK-NEXT: call void @llvm.assume(i1 [[NOTZERO]])
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X]])
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[CMP]]
;
%notzero = icmp ne i32 %x, 0
call void @llvm.assume(i1 %notzero)
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp eq i32 %t0, 1
ret i1 %cmp
}
define i1 @is_pow2_non_zero_ugt_1(i32 %x) {
; CHECK-LABEL: @is_pow2_non_zero_ugt_1(
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X:%.*]], 0
; CHECK-NEXT: call void @llvm.assume(i1 [[NOTZERO]])
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[CMP]]
;
%notzero = icmp ne i32 %x, 0
call void @llvm.assume(i1 %notzero)
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ugt i32 %t0, 1
ret i1 %cmp
}
define i1 @is_pow2_non_zero_ne_1(i32 %x) {
; CHECK-LABEL: @is_pow2_non_zero_ne_1(
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X:%.*]], 0
; CHECK-NEXT: call void @llvm.assume(i1 [[NOTZERO]])
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[CMP]]
;
%notzero = icmp ne i32 %x, 0
call void @llvm.assume(i1 %notzero)
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ne i32 %t0, 1
ret i1 %cmp
}
define i1 @is_pow2_ctpop_logical(i32 %x) {
; CHECK-LABEL: @is_pow2_ctpop_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ult i32 %t0, 2
%notzero = icmp ne i32 %x, 0
%r = select i1 %notzero, i1 %cmp, i1 false
ret i1 %r
}
; Extra uses don't change the fold.
declare void @use_i1(i1)
define i1 @is_pow2_ctpop_extra_uses(i32 %x) {
; CHECK-LABEL: @is_pow2_ctpop_extra_uses(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 2
; CHECK-NEXT: call void @use_i1(i1 [[CMP]])
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 0
; CHECK-NEXT: call void @use_i1(i1 [[NOTZERO]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ult i32 %t0, 2
call void @use_i1(i1 %cmp)
%notzero = icmp ne i32 %x, 0
call void @use_i1(i1 %notzero)
%r = and i1 %notzero, %cmp
ret i1 %r
}
define i1 @is_pow2_ctpop_extra_uses_logical(i32 %x) {
; CHECK-LABEL: @is_pow2_ctpop_extra_uses_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 2
; CHECK-NEXT: call void @use_i1(i1 [[CMP]])
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 0
; CHECK-NEXT: call void @use_i1(i1 [[NOTZERO]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ult i32 %t0, 2
call void @use_i1(i1 %cmp)
%notzero = icmp ne i32 %x, 0
call void @use_i1(i1 %notzero)
%r = select i1 %notzero, i1 %cmp, i1 false
ret i1 %r
}
; Test vector type and commuted 'and' operands.
define <2 x i1> @is_pow2_ctpop_commute_vec(<2 x i8> %x) {
; CHECK-LABEL: @is_pow2_ctpop_commute_vec(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp eq <2 x i8> [[T0]], <i8 1, i8 1>
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%t0 = tail call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %x)
%cmp = icmp ult <2 x i8> %t0, <i8 2, i8 2>
%notzero = icmp ne <2 x i8> %x, zeroinitializer
%r = and <2 x i1> %cmp, %notzero
ret <2 x i1> %r
}
; Negative test - wrong constant.
define i1 @is_pow2_ctpop_wrong_cmp_op1(i32 %x) {
; CHECK-LABEL: @is_pow2_ctpop_wrong_cmp_op1(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 3
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 0
; CHECK-NEXT: [[R:%.*]] = and i1 [[NOTZERO]], [[CMP]]
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ult i32 %t0, 3
%notzero = icmp ne i32 %x, 0
%r = and i1 %notzero, %cmp
ret i1 %r
}
define i1 @is_pow2_ctpop_wrong_cmp_op1_logical(i32 %x) {
; CHECK-LABEL: @is_pow2_ctpop_wrong_cmp_op1_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 3
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 0
; CHECK-NEXT: [[R:%.*]] = select i1 [[NOTZERO]], i1 [[CMP]], i1 false
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ult i32 %t0, 3
%notzero = icmp ne i32 %x, 0
%r = select i1 %notzero, i1 %cmp, i1 false
ret i1 %r
}
; Negative test - wrong constant.
define i1 @is_pow2_ctpop_wrong_cmp_op2(i32 %x) {
; CHECK-LABEL: @is_pow2_ctpop_wrong_cmp_op2(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 2
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 1
; CHECK-NEXT: [[R:%.*]] = and i1 [[NOTZERO]], [[CMP]]
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ult i32 %t0, 2
%notzero = icmp ne i32 %x, 1
%r = and i1 %notzero, %cmp
ret i1 %r
}
define i1 @is_pow2_ctpop_wrong_cmp_op2_logical(i32 %x) {
; CHECK-LABEL: @is_pow2_ctpop_wrong_cmp_op2_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 2
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 1
; CHECK-NEXT: [[R:%.*]] = select i1 [[NOTZERO]], i1 [[CMP]], i1 false
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ult i32 %t0, 2
%notzero = icmp ne i32 %x, 1
%r = select i1 %notzero, i1 %cmp, i1 false
ret i1 %r
}
; Negative test - wrong predicate.
define i1 @is_pow2_ctpop_wrong_pred1(i32 %x) {
; CHECK-LABEL: @is_pow2_ctpop_wrong_pred1(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 2
; CHECK-NEXT: ret i1 [[CMP]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ugt i32 %t0, 2
%notzero = icmp ne i32 %x, 0
%r = and i1 %notzero, %cmp
ret i1 %r
}
define i1 @is_pow2_ctpop_wrong_pred1_logical(i32 %x) {
; CHECK-LABEL: @is_pow2_ctpop_wrong_pred1_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 2
; CHECK-NEXT: ret i1 [[CMP]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ugt i32 %t0, 2
%notzero = icmp ne i32 %x, 0
%r = select i1 %notzero, i1 %cmp, i1 false
ret i1 %r
}
; Negative test - wrong predicate.
define i1 @is_pow2_ctpop_wrong_pred2(i32 %x) {
; CHECK-LABEL: @is_pow2_ctpop_wrong_pred2(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 2
; CHECK-NEXT: [[CMP2:%.*]] = icmp sgt i32 [[X]], 0
; CHECK-NEXT: [[R:%.*]] = and i1 [[CMP2]], [[CMP]]
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ult i32 %t0, 2
%cmp2 = icmp sgt i32 %x, 0
%r = and i1 %cmp2, %cmp
ret i1 %r
}
define i1 @is_pow2_ctpop_wrong_pred2_logical(i32 %x) {
; CHECK-LABEL: @is_pow2_ctpop_wrong_pred2_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[T0]], 2
; CHECK-NEXT: [[CMP2:%.*]] = icmp sgt i32 [[X]], 0
; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP2]], i1 [[CMP]], i1 false
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ult i32 %t0, 2
%cmp2 = icmp sgt i32 %x, 0
%r = select i1 %cmp2, i1 %cmp, i1 false
ret i1 %r
}
; (X == 0) || (ctpop(X) u> 1) --> ctpop(X) != 1
define i1 @isnot_pow2_ctpop(i32 %x) {
; CHECK-LABEL: @isnot_pow2_ctpop(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i32 [[T0]], 1
; 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, 0
%r = or i1 %iszero, %cmp
ret i1 %r
}
define i1 @isnot_pow2_ctpop_logical(i32 %x) {
; CHECK-LABEL: @isnot_pow2_ctpop_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i32 [[T0]], 1
; 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, 0
%r = select i1 %iszero, i1 true, i1 %cmp
ret i1 %r
}
; Extra uses don't change the fold.
define i1 @isnot_pow2_ctpop_extra_uses(i32 %x) {
; CHECK-LABEL: @isnot_pow2_ctpop_extra_uses(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 1
; CHECK-NEXT: call void @use_i1(i1 [[CMP]])
; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq i32 [[X]], 0
; CHECK-NEXT: call void @use_i1(i1 [[ISZERO]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ugt i32 %t0, 1
call void @use_i1(i1 %cmp)
%iszero = icmp eq i32 %x, 0
call void @use_i1(i1 %iszero)
%r = or i1 %iszero, %cmp
ret i1 %r
}
define i1 @isnot_pow2_ctpop_extra_uses_logical(i32 %x) {
; CHECK-LABEL: @isnot_pow2_ctpop_extra_uses_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 1
; CHECK-NEXT: call void @use_i1(i1 [[CMP]])
; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq i32 [[X]], 0
; CHECK-NEXT: call void @use_i1(i1 [[ISZERO]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ugt i32 %t0, 1
call void @use_i1(i1 %cmp)
%iszero = icmp eq i32 %x, 0
call void @use_i1(i1 %iszero)
%r = select i1 %iszero, i1 true, i1 %cmp
ret i1 %r
}
; Test vector type and commuted 'or' operands.
define <2 x i1> @isnot_pow2_ctpop_commute_vec(<2 x i8> %x) {
; CHECK-LABEL: @isnot_pow2_ctpop_commute_vec(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ne <2 x i8> [[T0]], <i8 1, i8 1>
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%t0 = tail call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %x)
%cmp = icmp ugt <2 x i8> %t0, <i8 1, i8 1>
%iszero = icmp eq <2 x i8> %x, zeroinitializer
%r = or <2 x i1> %cmp, %iszero
ret <2 x i1> %r
}
; Negative test - wrong constant.
define i1 @isnot_pow2_ctpop_wrong_cmp_op1(i32 %x) {
; CHECK-LABEL: @isnot_pow2_ctpop_wrong_cmp_op1(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 2
; 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 ugt i32 %t0, 2
%iszero = icmp eq i32 %x, 0
%r = or i1 %iszero, %cmp
ret i1 %r
}
define i1 @isnot_pow2_ctpop_wrong_cmp_op1_logical(i32 %x) {
; CHECK-LABEL: @isnot_pow2_ctpop_wrong_cmp_op1_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 2
; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq i32 [[X]], 0
; CHECK-NEXT: [[R:%.*]] = select i1 [[ISZERO]], i1 true, i1 [[CMP]]
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ugt i32 %t0, 2
%iszero = icmp eq i32 %x, 0
%r = select i1 %iszero, i1 true, i1 %cmp
ret i1 %r
}
; 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 range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; 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
}
define i1 @isnot_pow2_ctpop_wrong_cmp_op2_logical(i32 %x) {
; CHECK-LABEL: @isnot_pow2_ctpop_wrong_cmp_op2_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 1
; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq i32 [[X]], 1
; CHECK-NEXT: [[R:%.*]] = select i1 [[ISZERO]], i1 true, i1 [[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 = select i1 %iszero, i1 true, i1 %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 range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; 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 @isnot_pow2_ctpop_wrong_pred2_logical(i32 %x) {
; CHECK-LABEL: @isnot_pow2_ctpop_wrong_pred2_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[T0]], 1
; CHECK-NEXT: [[CMP2:%.*]] = icmp slt i32 [[X]], 0
; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP2]], i1 true, i1 [[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 = select i1 %cmp2, i1 true, i1 %cmp
ret i1 %r
}
define i1 @is_pow2_negate_op(i32 %x) {
; CHECK-LABEL: @is_pow2_negate_op(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i32 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%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 i1 @is_pow2_negate_op_logical(i32 %x) {
; CHECK-LABEL: @is_pow2_negate_op_logical(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i32 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%neg = sub i32 0, %x
%and = and i32 %neg, %x
%cmp = icmp eq i32 %and, %x
%notzero = icmp ne i32 %x, 0
%r = select i1 %notzero, i1 %cmp, i1 false
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 range(i32 0, 33) <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp eq <2 x i32> [[TMP1]], <i32 1, i32 1>
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%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 range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%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 i1 @is_pow2_decrement_op_logical(i8 %x) {
; CHECK-LABEL: @is_pow2_decrement_op_logical(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%dec = add i8 %x, -1
%and = and i8 %dec, %x
%cmp = icmp eq i8 %and, 0
%notzero = icmp ne i8 %x, 0
%r = select i1 %cmp, i1 %notzero, i1 false
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 range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp eq <2 x i8> [[TMP1]], <i8 1, i8 1>
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%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 range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i32 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%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 i1 @isnot_pow2_negate_op_logical(i32 %x) {
; CHECK-LABEL: @isnot_pow2_negate_op_logical(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i32 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%neg = sub i32 0, %x
%and = and i32 %neg, %x
%cmp = icmp ne i32 %and, %x
%iszero = icmp eq i32 %x, 0
%r = select i1 %cmp, i1 true, i1 %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 range(i32 0, 33) <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ne <2 x i32> [[TMP1]], <i32 1, i32 1>
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%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 range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%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 i1 @isnot_pow2_decrement_op_logical(i8 %x) {
; CHECK-LABEL: @isnot_pow2_decrement_op_logical(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%dec = add i8 %x, -1
%and = and i8 %dec, %x
%cmp = icmp ne i8 %and, 0
%iszero = icmp eq i8 %x, 0
%r = select i1 %iszero, i1 true, i1 %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 range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ne <2 x i8> [[TMP1]], <i8 1, i8 1>
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%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
}
; (ctpop(X) == 1) || (X == 0) --> ctpop(X) u< 2
define i1 @is_pow2or0_ctpop(i32 %x) {
; CHECK-LABEL: @is_pow2or0_ctpop(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ult i32 [[T0]], 2
; 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
}
define i1 @is_pow2or0_ctpop_swap_cmp(i32 %x) {
; CHECK-LABEL: @is_pow2or0_ctpop_swap_cmp(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ult i32 [[T0]], 2
; 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 %cmp, %iszero
ret i1 %r
}
define i1 @is_pow2or0_ctpop_logical(i32 %x) {
; CHECK-LABEL: @is_pow2or0_ctpop_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ult i32 [[T0]], 2
; 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 = select i1 %iszero, i1 true, i1 %cmp
ret i1 %r
}
define <2 x i1> @is_pow2or0_ctpop_commute_vec(<2 x i8> %x) {
; CHECK-LABEL: @is_pow2or0_ctpop_commute_vec(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ult <2 x i8> [[T0]], <i8 2, i8 2>
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%t0 = tail call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %x)
%cmp = icmp eq <2 x i8> %t0, <i8 1, i8 1>
%iszero = icmp eq <2 x i8> %x, <i8 0, i8 0>
%r = or <2 x i1> %iszero, %cmp
ret <2 x i1> %r
}
; Extra uses don't change the fold.
define i1 @is_pow2or0_ctpop_extra_uses(i32 %x) {
; CHECK-LABEL: @is_pow2or0_ctpop_extra_uses(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: call void @use(i32 [[T0]])
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[T0]], 1
; CHECK-NEXT: call void @use_i1(i1 [[CMP]])
; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq i32 [[X]], 0
; CHECK-NEXT: call void @use_i1(i1 [[ISZERO]])
; CHECK-NEXT: [[R:%.*]] = icmp ult i32 [[T0]], 2
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
call void @use(i32 %t0)
%cmp = icmp eq i32 %t0, 1
call void @use_i1(i1 %cmp)
%iszero = icmp eq i32 %x, 0
call void @use_i1(i1 %iszero)
%r = or i1 %iszero, %cmp
ret i1 %r
}
define i1 @is_pow2or0_ctpop_logical_extra_uses(i32 %x) {
; CHECK-LABEL: @is_pow2or0_ctpop_logical_extra_uses(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: call void @use(i32 [[T0]])
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[T0]], 1
; CHECK-NEXT: call void @use_i1(i1 [[CMP]])
; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq i32 [[X]], 0
; CHECK-NEXT: call void @use_i1(i1 [[ISZERO]])
; CHECK-NEXT: [[R:%.*]] = icmp ult i32 [[T0]], 2
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
call void @use(i32 %t0)
%cmp = icmp eq i32 %t0, 1
call void @use_i1(i1 %cmp)
%iszero = icmp eq i32 %x, 0
call void @use_i1(i1 %iszero)
%r = select i1 %iszero, i1 true, i1 %cmp
ret i1 %r
}
; Negative test - wrong constant.
define i1 @is_pow2or0_ctpop_wrong_cmp_op1(i32 %x) {
; CHECK-LABEL: @is_pow2or0_ctpop_wrong_cmp_op1(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[T0]], 2
; 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, 2
%iszero = icmp eq i32 %x, 0
%r = or i1 %iszero, %cmp
ret i1 %r
}
define i1 @is_pow2or0_ctpop_wrong_cmp_op1_logical(i32 %x) {
; CHECK-LABEL: @is_pow2or0_ctpop_wrong_cmp_op1_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[T0]], 3
; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq i32 [[X]], 0
; CHECK-NEXT: [[R:%.*]] = select i1 [[ISZERO]], i1 true, i1 [[CMP]]
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp eq i32 %t0, 3
%iszero = icmp eq i32 %x, 0
%r = select i1 %iszero, i1 true, i1 %cmp
ret i1 %r
}
define <2 x i1> @is_pow2or0_ctpop_commute_vec_wrong_cmp_op1(<2 x i8> %x) {
; CHECK-LABEL: @is_pow2or0_ctpop_commute_vec_wrong_cmp_op1(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp eq <2 x i8> [[T0]], <i8 -1, i8 1>
; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq <2 x i8> [[X]], zeroinitializer
; CHECK-NEXT: [[R:%.*]] = or <2 x i1> [[CMP]], [[ISZERO]]
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%t0 = tail call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %x)
%cmp = icmp eq <2 x i8> %t0, <i8 -1, i8 1>
%iszero = icmp eq <2 x i8> %x, <i8 0, i8 0>
%r = or <2 x i1> %cmp, %iszero
ret <2 x i1> %r
}
; Negative test - wrong predicate.
define i1 @is_pow2or0_ctpop_wrong_pred1(i32 %x) {
; CHECK-LABEL: @is_pow2or0_ctpop_wrong_pred1(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[CMP]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ne i32 %t0, 1
%iszero = icmp eq i32 %x, 0
%r = or i1 %iszero, %cmp
ret i1 %r
}
define i1 @is_pow2or0_ctpop_wrong_pred2(i32 %x) {
; CHECK-LABEL: @is_pow2or0_ctpop_wrong_pred2(
; CHECK-NEXT: ret i1 true
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ne i32 %t0, 1
%iszero = icmp ne i32 %x, 0
%r = or i1 %iszero, %cmp
ret i1 %r
}
define i1 @is_pow2or0_ctpop_wrong_pred2_logical(i32 %x) {
; CHECK-LABEL: @is_pow2or0_ctpop_wrong_pred2_logical(
; CHECK-NEXT: ret i1 true
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ne i32 %t0, 1
%iszero = icmp ne i32 %x, 0
%r = select i1 %iszero, i1 true, i1 %cmp
ret i1 %r
}
define <2 x i1> @is_pow2or0_ctpop_commute_vec_wrong_pred3(<2 x i8> %x) {
; CHECK-LABEL: @is_pow2or0_ctpop_commute_vec_wrong_pred3(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp eq <2 x i8> [[T0]], <i8 1, i8 1>
; CHECK-NEXT: [[ISZERO:%.*]] = icmp eq <2 x i8> [[X]], zeroinitializer
; CHECK-NEXT: [[R:%.*]] = and <2 x i1> [[CMP]], [[ISZERO]]
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%t0 = tail call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %x)
%cmp = icmp eq <2 x i8> %t0, <i8 1, i8 1>
%iszero = icmp eq <2 x i8> %x, <i8 0, i8 0>
%r = and <2 x i1> %cmp, %iszero
ret <2 x i1> %r
}
; (ctpop(X) != 1) && (X != 0) --> ctpop(X) u> 1
define i1 @isnot_pow2nor0_ctpop(i32 %x) {
; CHECK-LABEL: @isnot_pow2nor0_ctpop(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ne i32 %t0, 1
%notzero = icmp ne i32 %x, 0
%r = and i1 %notzero, %cmp
ret i1 %r
}
define i1 @isnot_pow2nor0_ctpop_swap_cmp(i32 %x) {
; CHECK-LABEL: @isnot_pow2nor0_ctpop_swap_cmp(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ne i32 %t0, 1
%notzero = icmp ne i32 %x, 0
%r = and i1 %cmp, %notzero
ret i1 %r
}
define i1 @isnot_pow2nor0_ctpop_logical(i32 %x) {
; CHECK-LABEL: @isnot_pow2nor0_ctpop_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ne i32 %t0, 1
%notzero = icmp ne i32 %x, 0
%r = select i1 %notzero, i1 %cmp, i1 false
ret i1 %r
}
define <2 x i1> @isnot_pow2nor0_ctpop_commute_vec(<2 x i8> %x) {
; CHECK-LABEL: @isnot_pow2nor0_ctpop_commute_vec(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt <2 x i8> [[T0]], <i8 1, i8 1>
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%t0 = tail call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %x)
%cmp = icmp ne <2 x i8> %t0, <i8 1, i8 1>
%notzero = icmp ne <2 x i8> %x, <i8 0, i8 0>
%r = and <2 x i1> %notzero, %cmp
ret <2 x i1> %r
}
; Extra uses don't change the fold.
define i1 @isnot_pow2nor0_ctpop_extra_uses(i32 %x) {
; CHECK-LABEL: @isnot_pow2nor0_ctpop_extra_uses(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: call void @use(i32 [[T0]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[T0]], 1
; CHECK-NEXT: call void @use_i1(i1 [[CMP]])
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 0
; CHECK-NEXT: call void @use_i1(i1 [[NOTZERO]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
call void @use(i32 %t0)
%cmp = icmp ne i32 %t0, 1
call void @use_i1(i1 %cmp)
%notzero = icmp ne i32 %x, 0
call void @use_i1(i1 %notzero)
%r = and i1 %notzero, %cmp
ret i1 %r
}
define i1 @isnot_pow2nor0_ctpop_logical_extra_uses(i32 %x) {
; CHECK-LABEL: @isnot_pow2nor0_ctpop_logical_extra_uses(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: call void @use(i32 [[T0]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[T0]], 1
; CHECK-NEXT: call void @use_i1(i1 [[CMP]])
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 0
; CHECK-NEXT: call void @use_i1(i1 [[NOTZERO]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
call void @use(i32 %t0)
%cmp = icmp ne i32 %t0, 1
call void @use_i1(i1 %cmp)
%notzero = icmp ne i32 %x, 0
call void @use_i1(i1 %notzero)
%r = select i1 %notzero, i1 %cmp, i1 false
ret i1 %r
}
; Negative test - wrong constant.
define i1 @isnot_pow2nor0_ctpop_wrong_cmp_op1(i32 %x) {
; CHECK-LABEL: @isnot_pow2nor0_ctpop_wrong_cmp_op1(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[T0]], 4
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 0
; CHECK-NEXT: [[R:%.*]] = and i1 [[NOTZERO]], [[CMP]]
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ne i32 %t0, 4
%notzero = icmp ne i32 %x, 0
%r = and i1 %notzero, %cmp
ret i1 %r
}
define i1 @isnot_pow2nor0_ctpop_wrong_cmp_op1_logical(i32 %x) {
; CHECK-LABEL: @isnot_pow2nor0_ctpop_wrong_cmp_op1_logical(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[T0]], 5
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne i32 [[X]], 0
; CHECK-NEXT: [[R:%.*]] = select i1 [[NOTZERO]], i1 [[CMP]], i1 false
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp ne i32 %t0, 5
%notzero = icmp ne i32 %x, 0
%r = select i1 %notzero, i1 %cmp, i1 false
ret i1 %r
}
define <2 x i1> @isnot_pow2nor0_ctpop_commute_vec_wrong_cmp_op1(<2 x i8> %x) {
; CHECK-LABEL: @isnot_pow2nor0_ctpop_commute_vec_wrong_cmp_op1(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ne <2 x i8> [[T0]], <i8 0, i8 -1>
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne <2 x i8> [[X]], zeroinitializer
; CHECK-NEXT: [[R:%.*]] = and <2 x i1> [[CMP]], [[NOTZERO]]
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%t0 = tail call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %x)
%cmp = icmp ne <2 x i8> %t0, <i8 0, i8 -1>
%notzero = icmp ne <2 x i8> %x, <i8 0, i8 0>
%r = and <2 x i1> %cmp, %notzero
ret <2 x i1> %r
}
; Negative test - wrong predicate.
define i1 @isnot_pow2nor0_ctpop_wrong_pred1(i32 %x) {
; CHECK-LABEL: @isnot_pow2nor0_ctpop_wrong_pred1(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[T0]], 1
; CHECK-NEXT: ret i1 [[CMP]]
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp eq i32 %t0, 1
%notzero = icmp ne i32 %x, 0
%r = and i1 %notzero, %cmp
ret i1 %r
}
define i1 @isnot_pow2nor0_ctpop_wrong_pred2(i32 %x) {
; CHECK-LABEL: @isnot_pow2nor0_ctpop_wrong_pred2(
; CHECK-NEXT: ret i1 false
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp eq i32 %t0, 1
%notzero = icmp eq i32 %x, 0
%r = and i1 %notzero, %cmp
ret i1 %r
}
define i1 @isnot_pow2nor0_ctpop_wrong_pred2_logical(i32 %x) {
; CHECK-LABEL: @isnot_pow2nor0_ctpop_wrong_pred2_logical(
; CHECK-NEXT: ret i1 false
;
%t0 = tail call i32 @llvm.ctpop.i32(i32 %x)
%cmp = icmp eq i32 %t0, 1
%notzero = icmp eq i32 %x, 0
%r = select i1 %notzero, i1 %cmp, i1 false
ret i1 %r
}
define <2 x i1> @isnot_pow2nor0_wrong_pred3_ctpop_commute_vec(<2 x i8> %x) {
; CHECK-LABEL: @isnot_pow2nor0_wrong_pred3_ctpop_commute_vec(
; CHECK-NEXT: [[T0:%.*]] = tail call range(i8 0, 9) <2 x i8> @llvm.ctpop.v2i8(<2 x i8> [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = icmp ne <2 x i8> [[T0]], <i8 1, i8 1>
; CHECK-NEXT: [[NOTZERO:%.*]] = icmp ne <2 x i8> [[X]], zeroinitializer
; CHECK-NEXT: [[R:%.*]] = or <2 x i1> [[CMP]], [[NOTZERO]]
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%t0 = tail call <2 x i8> @llvm.ctpop.v2i8(<2 x i8> %x)
%cmp = icmp ne <2 x i8> %t0, <i8 1, i8 1>
%notzero = icmp ne <2 x i8> %x, <i8 0, i8 0>
%r = or <2 x i1> %cmp, %notzero
ret <2 x i1> %r
}
define i1 @is_pow2_fail_pr63327(i32 %x) {
; CHECK-LABEL: @is_pow2_fail_pr63327(
; CHECK-NEXT: [[NX:%.*]] = sub i32 0, [[X:%.*]]
; CHECK-NEXT: [[X_AND_NX:%.*]] = and i32 [[NX]], [[X]]
; CHECK-NEXT: [[R:%.*]] = icmp sge i32 [[X_AND_NX]], [[X]]
; CHECK-NEXT: ret i1 [[R]]
;
%nx = sub i32 0, %x
%x_and_nx = and i32 %x, %nx
%r = icmp sge i32 %x_and_nx, %x
ret i1 %r
}
define i1 @blsmsk_is_p2_or_z(i32 %xx, i32 %yy) {
; CHECK-LABEL: @blsmsk_is_p2_or_z(
; CHECK-NEXT: [[X:%.*]] = or i32 [[XX:%.*]], [[YY:%.*]]
; CHECK-NEXT: [[XM1:%.*]] = add i32 [[X]], -1
; CHECK-NEXT: [[Y:%.*]] = xor i32 [[X]], [[XM1]]
; CHECK-NEXT: [[R:%.*]] = icmp uge i32 [[X]], [[Y]]
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i32 %xx, %yy
%xm1 = add i32 %x, -1
%y = xor i32 %x, %xm1
%r = icmp uge i32 %x, %y
ret i1 %r
}
define i1 @blsmsk_isnt_p2_or_z(i32 %x) {
; CHECK-LABEL: @blsmsk_isnt_p2_or_z(
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt i32 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%xm1 = add i32 %x, -1
%y = xor i32 %x, %xm1
%r = icmp ult i32 %y, %x
ret i1 %r
}
define i1 @blsmsk_is_p2_or_z_fail(i32 %xx, i32 %yy) {
; CHECK-LABEL: @blsmsk_is_p2_or_z_fail(
; CHECK-NEXT: [[X:%.*]] = or i32 [[XX:%.*]], [[YY:%.*]]
; CHECK-NEXT: [[TMP1:%.*]] = call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 [[X]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt i32 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i32 %xx, %yy
%xm1 = add i32 %x, -1
%y = xor i32 %x, %xm1
%r = icmp ugt i32 %x, %y
ret i1 %r
}
define i1 @blsmsk_isnt_p2_or_z_fail(i32 %x) {
; CHECK-LABEL: @blsmsk_isnt_p2_or_z_fail(
; CHECK-NEXT: [[XM1:%.*]] = add i32 [[X:%.*]], -1
; CHECK-NEXT: [[Y:%.*]] = xor i32 [[XM1]], [[X]]
; CHECK-NEXT: [[R:%.*]] = icmp ule i32 [[Y]], [[X]]
; CHECK-NEXT: ret i1 [[R]]
;
%xm1 = add i32 %x, -1
%y = xor i32 %x, %xm1
%r = icmp ule i32 %y, %x
ret i1 %r
}
declare void @use.i32(i32)
define i1 @blsmsk_isnt_p2_or_z_fail_multiuse(i32 %x) {
; CHECK-LABEL: @blsmsk_isnt_p2_or_z_fail_multiuse(
; CHECK-NEXT: [[XM1:%.*]] = add i32 [[X:%.*]], -1
; CHECK-NEXT: [[Y:%.*]] = xor i32 [[XM1]], [[X]]
; CHECK-NEXT: call void @use.i32(i32 [[Y]])
; CHECK-NEXT: [[R:%.*]] = icmp ult i32 [[Y]], [[X]]
; CHECK-NEXT: ret i1 [[R]]
;
%xm1 = add i32 %x, -1
%y = xor i32 %x, %xm1
call void @use.i32(i32 %y)
%r = icmp ult i32 %y, %x
ret i1 %r
}
define i1 @blsmsk_isnt_p2_or_z_fail_wrong_add(i32 %x, i32 %z) {
; CHECK-LABEL: @blsmsk_isnt_p2_or_z_fail_wrong_add(
; CHECK-NEXT: [[XM1:%.*]] = add i32 [[Z:%.*]], -1
; CHECK-NEXT: [[Y:%.*]] = xor i32 [[XM1]], [[X:%.*]]
; CHECK-NEXT: [[R:%.*]] = icmp ult i32 [[Y]], [[X]]
; CHECK-NEXT: ret i1 [[R]]
;
%xm1 = add i32 %z, -1
%y = xor i32 %x, %xm1
%r = icmp ult i32 %y, %x
ret i1 %r
}
define i1 @blsmsk_isnt_p2_or_z_fail_bad_xor(i32 %x, i32 %z) {
; CHECK-LABEL: @blsmsk_isnt_p2_or_z_fail_bad_xor(
; CHECK-NEXT: [[XM1:%.*]] = add i32 [[X:%.*]], -1
; CHECK-NEXT: [[Y:%.*]] = xor i32 [[XM1]], [[Z:%.*]]
; CHECK-NEXT: [[R:%.*]] = icmp ult i32 [[Y]], [[X]]
; CHECK-NEXT: ret i1 [[R]]
;
%xm1 = add i32 %x, -1
%y = xor i32 %z, %xm1
%r = icmp ult i32 %y, %x
ret i1 %r
}
define i1 @blsmsk_is_p2_or_z_fail_bad_cmp(i32 %x, i32 %z) {
; CHECK-LABEL: @blsmsk_is_p2_or_z_fail_bad_cmp(
; CHECK-NEXT: [[XM1:%.*]] = add i32 [[X:%.*]], -1
; CHECK-NEXT: [[Y:%.*]] = xor i32 [[XM1]], [[X]]
; CHECK-NEXT: [[R:%.*]] = icmp uge i32 [[Y]], [[Z:%.*]]
; CHECK-NEXT: ret i1 [[R]]
;
%xm1 = add i32 %x, -1
%y = xor i32 %x, %xm1
%r = icmp uge i32 %y, %z
ret i1 %r
}
define i1 @blsmsk_is_p2_or_z_ule_xy(i8 %xx, i8 %yy) {
; CHECK-LABEL: @blsmsk_is_p2_or_z_ule_xy(
; CHECK-NEXT: [[X:%.*]] = or i8 [[XX:%.*]], [[YY:%.*]]
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X]])
; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[TMP1]], 2
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i8 %xx, %yy
%xm1 = add i8 %x, -1
%y = xor i8 %x, %xm1
%r = icmp ule i8 %x, %y
ret i1 %r
}
define i1 @blsmsk_is_p2_or_z_ule_yx_fail(i8 %xx, i8 %yy) {
; CHECK-LABEL: @blsmsk_is_p2_or_z_ule_yx_fail(
; CHECK-NEXT: [[X:%.*]] = or i8 [[XX:%.*]], [[YY:%.*]]
; CHECK-NEXT: [[XM1:%.*]] = add i8 [[X]], -1
; CHECK-NEXT: [[Y:%.*]] = xor i8 [[X]], [[XM1]]
; CHECK-NEXT: [[R:%.*]] = icmp ule i8 [[Y]], [[X]]
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i8 %xx, %yy
%xm1 = add i8 %x, -1
%y = xor i8 %x, %xm1
%r = icmp ule i8 %y, %x
ret i1 %r
}
define i1 @blsmsk_is_p2_or_z_uge_yx(i8 %xx, i8 %yy) {
; CHECK-LABEL: @blsmsk_is_p2_or_z_uge_yx(
; CHECK-NEXT: [[X:%.*]] = or i8 [[XX:%.*]], [[YY:%.*]]
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X]])
; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[TMP1]], 2
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i8 %xx, %yy
%xm1 = add i8 %x, -1
%y = xor i8 %x, %xm1
%r = icmp uge i8 %y, %x
ret i1 %r
}
define i1 @blsmsk_is_p2_or_z_uge_xy_fail(i8 %xx, i8 %yy) {
; CHECK-LABEL: @blsmsk_is_p2_or_z_uge_xy_fail(
; CHECK-NEXT: [[X:%.*]] = or i8 [[XX:%.*]], [[YY:%.*]]
; CHECK-NEXT: [[XM1:%.*]] = add i8 [[X]], -1
; CHECK-NEXT: [[Y:%.*]] = xor i8 [[X]], [[XM1]]
; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[X]], [[Y]]
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i8 %xx, %yy
%xm1 = add i8 %x, -1
%y = xor i8 %x, %xm1
%r = icmp uge i8 %x, %y
ret i1 %r
}
define i1 @blsmsk_isnt_p2_or_z_ugt_xy(i8 %xx, i8 %yy) {
; CHECK-LABEL: @blsmsk_isnt_p2_or_z_ugt_xy(
; CHECK-NEXT: [[X:%.*]] = or i8 [[XX:%.*]], [[YY:%.*]]
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt i8 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i8 %xx, %yy
%xm1 = add i8 %x, -1
%y = xor i8 %x, %xm1
%r = icmp ugt i8 %x, %y
ret i1 %r
}
define i1 @blsmsk_isnt_p2_or_z_ugt_yx_fail(i8 %xx, i8 %yy) {
; CHECK-LABEL: @blsmsk_isnt_p2_or_z_ugt_yx_fail(
; CHECK-NEXT: [[X:%.*]] = or i8 [[XX:%.*]], [[YY:%.*]]
; CHECK-NEXT: [[XM1:%.*]] = add i8 [[X]], -1
; CHECK-NEXT: [[Y:%.*]] = xor i8 [[X]], [[XM1]]
; CHECK-NEXT: [[R:%.*]] = icmp ugt i8 [[Y]], [[X]]
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i8 %xx, %yy
%xm1 = add i8 %x, -1
%y = xor i8 %x, %xm1
%r = icmp ugt i8 %y, %x
ret i1 %r
}
define i1 @blsmsk_isnt_p2_or_z_ult_yx(i8 %xx, i8 %yy) {
; CHECK-LABEL: @blsmsk_isnt_p2_or_z_ult_yx(
; CHECK-NEXT: [[X:%.*]] = or i8 [[XX:%.*]], [[YY:%.*]]
; CHECK-NEXT: [[TMP1:%.*]] = call range(i8 0, 9) i8 @llvm.ctpop.i8(i8 [[X]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt i8 [[TMP1]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i8 %xx, %yy
%xm1 = add i8 %x, -1
%y = xor i8 %x, %xm1
%r = icmp ult i8 %y, %x
ret i1 %r
}
define i1 @blsmsk_isnt_p2_or_z_ult_xy_fail(i8 %xx, i8 %yy) {
; CHECK-LABEL: @blsmsk_isnt_p2_or_z_ult_xy_fail(
; CHECK-NEXT: [[X:%.*]] = or i8 [[XX:%.*]], [[YY:%.*]]
; CHECK-NEXT: [[XM1:%.*]] = add i8 [[X]], -1
; CHECK-NEXT: [[Y:%.*]] = xor i8 [[X]], [[XM1]]
; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[X]], [[Y]]
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i8 %xx, %yy
%xm1 = add i8 %x, -1
%y = xor i8 %x, %xm1
%r = icmp ult i8 %x, %y
ret i1 %r
}
declare <2 x i32> @llvm.ctpop.2xi32(<2 x i32>)
define i1 @is_pow2_nz_known_bits(i32 %xin) {
; CHECK-LABEL: @is_pow2_nz_known_bits(
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[XIN:%.*]], -65
; CHECK-NEXT: [[R:%.*]] = icmp eq i32 [[TMP1]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i32 %xin, 64
%cnt = call i32 @llvm.ctpop.i32(i32 %x)
%r = icmp eq i32 %cnt, 1
ret i1 %r
}
define i1 @is_pow2_nz_known_bits_fail_multiuse(i32 %xin) {
; CHECK-LABEL: @is_pow2_nz_known_bits_fail_multiuse(
; CHECK-NEXT: [[X:%.*]] = or i32 [[XIN:%.*]], 64
; CHECK-NEXT: [[CNT:%.*]] = call range(i32 1, 33) i32 @llvm.ctpop.i32(i32 [[X]])
; CHECK-NEXT: call void @use.i32(i32 [[CNT]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i32 [[CNT]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i32 %xin, 64
%cnt = call i32 @llvm.ctpop.i32(i32 %x)
call void @use.i32(i32 %cnt)
%r = icmp eq i32 %cnt, 1
ret i1 %r
}
define i1 @not_pow2_nz_known_bits(i32 %xin) {
; CHECK-LABEL: @not_pow2_nz_known_bits(
; CHECK-NEXT: [[R:%.*]] = icmp ugt i32 [[XIN:%.*]], 1
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i32 %xin, 1
%cnt = call i32 @llvm.ctpop.i32(i32 %x)
%r = icmp ne i32 %cnt, 1
ret i1 %r
}
define i1 @not_pow2_nz_known_bits_fail_not_p2_test(i32 %xin) {
; CHECK-LABEL: @not_pow2_nz_known_bits_fail_not_p2_test(
; CHECK-NEXT: [[X:%.*]] = or i32 [[XIN:%.*]], 1
; CHECK-NEXT: [[CNT:%.*]] = call range(i32 1, 33) i32 @llvm.ctpop.i32(i32 [[X]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i32 [[CNT]], 2
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i32 %xin, 1
%cnt = call i32 @llvm.ctpop.i32(i32 %x)
%r = icmp ne i32 %cnt, 2
ret i1 %r
}
define i1 @is_pow2_or_z_known_bits(i32 %xin) {
; CHECK-LABEL: @is_pow2_or_z_known_bits(
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[XIN:%.*]], 2147483647
; CHECK-NEXT: [[R:%.*]] = icmp eq i32 [[TMP1]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i32 %xin, 2147483648
%cnt = call i32 @llvm.ctpop.i32(i32 %x)
%r = icmp ult i32 %cnt, 2
ret i1 %r
}
define <2 x i1> @not_pow2_or_z_known_bits(<2 x i32> %xin) {
; CHECK-LABEL: @not_pow2_or_z_known_bits(
; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[XIN:%.*]], <i32 -65, i32 -65>
; CHECK-NEXT: [[R:%.*]] = icmp ne <2 x i32> [[TMP1]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%x = or <2 x i32> %xin, <i32 64, i32 64>
%cnt = call <2 x i32> @llvm.ctpop.2xi32(<2 x i32> %x)
%r = icmp ugt <2 x i32> %cnt, <i32 1, i32 1>
ret <2 x i1> %r
}
define <2 x i1> @not_pow2_or_z_known_bits_fail_wrong_cmp(<2 x i32> %xin) {
; CHECK-LABEL: @not_pow2_or_z_known_bits_fail_wrong_cmp(
; CHECK-NEXT: [[X:%.*]] = or <2 x i32> [[XIN:%.*]], <i32 64, i32 64>
; CHECK-NEXT: [[CNT:%.*]] = call range(i32 1, 33) <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[X]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt <2 x i32> [[CNT]], <i32 2, i32 2>
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%x = or <2 x i32> %xin, <i32 64, i32 64>
%cnt = call <2 x i32> @llvm.ctpop.2xi32(<2 x i32> %x)
%r = icmp ugt <2 x i32> %cnt, <i32 2, i32 2>
ret <2 x i1> %r
}
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