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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=instsimplify < %s | FileCheck %s
define i1 @or_implied(i8 %x, i1 %c) {
; CHECK-LABEL: @or_implied(
; CHECK-NEXT: [[CMP2:%.*]] = icmp ne i8 [[X:%.*]], 1
; CHECK-NEXT: ret i1 [[CMP2]]
;
%cmp = icmp eq i8 %x, 0
%cmp2 = icmp ne i8 %x, 1
%and = and i1 %cmp, %c
%or = or i1 %and, %cmp2
ret i1 %or
}
define i1 @or_implied_comm1(i8 %x, i1 %c) {
; CHECK-LABEL: @or_implied_comm1(
; CHECK-NEXT: [[CMP2:%.*]] = icmp ne i8 [[X:%.*]], 1
; CHECK-NEXT: ret i1 [[CMP2]]
;
%cmp = icmp eq i8 %x, 0
%cmp2 = icmp ne i8 %x, 1
%and = and i1 %cmp, %c
%or = or i1 %cmp2, %and
ret i1 %or
}
define i1 @or_implied_comm2(i8 %x, i1 %c) {
; CHECK-LABEL: @or_implied_comm2(
; CHECK-NEXT: [[CMP2:%.*]] = icmp ne i8 [[X:%.*]], 1
; CHECK-NEXT: ret i1 [[CMP2]]
;
%cmp = icmp eq i8 %x, 0
%cmp2 = icmp ne i8 %x, 1
%and = and i1 %c, %cmp
%or = or i1 %and, %cmp2
ret i1 %or
}
define i1 @or_implied_comm3(i8 %x, i1 %c) {
; CHECK-LABEL: @or_implied_comm3(
; CHECK-NEXT: [[CMP2:%.*]] = icmp ne i8 [[X:%.*]], 1
; CHECK-NEXT: ret i1 [[CMP2]]
;
%cmp = icmp eq i8 %x, 0
%cmp2 = icmp ne i8 %x, 1
%and = and i1 %c, %cmp
%or = or i1 %cmp2, %and
ret i1 %or
}
define i1 @or_not_implied(i8 %x, i1 %c) {
; CHECK-LABEL: @or_not_implied(
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[X:%.*]], 0
; CHECK-NEXT: [[CMP2:%.*]] = icmp ne i8 [[X]], 0
; CHECK-NEXT: [[AND:%.*]] = and i1 [[CMP]], [[C:%.*]]
; CHECK-NEXT: [[OR:%.*]] = or i1 [[AND]], [[CMP2]]
; CHECK-NEXT: ret i1 [[OR]]
;
%cmp = icmp eq i8 %x, 0
%cmp2 = icmp ne i8 %x, 0
%and = and i1 %cmp, %c
%or = or i1 %and, %cmp2
ret i1 %or
}
define i1 @and_implied(i8 %x, i1 %c) {
; CHECK-LABEL: @and_implied(
; CHECK-NEXT: [[CMP2:%.*]] = icmp eq i8 [[X:%.*]], 1
; CHECK-NEXT: ret i1 [[CMP2]]
;
%cmp = icmp ne i8 %x, 0
%cmp2 = icmp eq i8 %x, 1
%or = or i1 %cmp, %c
%and = and i1 %or, %cmp2
ret i1 %and
}
define i1 @and_implied_comm1(i8 %x, i1 %c) {
; CHECK-LABEL: @and_implied_comm1(
; CHECK-NEXT: [[CMP2:%.*]] = icmp eq i8 [[X:%.*]], 1
; CHECK-NEXT: ret i1 [[CMP2]]
;
%cmp = icmp ne i8 %x, 0
%cmp2 = icmp eq i8 %x, 1
%or = or i1 %cmp, %c
%and = and i1 %cmp2, %or
ret i1 %and
}
define i1 @and_implied_comm2(i8 %x, i1 %c) {
; CHECK-LABEL: @and_implied_comm2(
; CHECK-NEXT: [[CMP2:%.*]] = icmp eq i8 [[X:%.*]], 1
; CHECK-NEXT: ret i1 [[CMP2]]
;
%cmp = icmp ne i8 %x, 0
%cmp2 = icmp eq i8 %x, 1
%or = or i1 %c, %cmp
%and = and i1 %or, %cmp2
ret i1 %and
}
define i1 @and_implied_comm3(i8 %x, i1 %c) {
; CHECK-LABEL: @and_implied_comm3(
; CHECK-NEXT: [[CMP2:%.*]] = icmp eq i8 [[X:%.*]], 1
; CHECK-NEXT: ret i1 [[CMP2]]
;
%cmp = icmp ne i8 %x, 0
%cmp2 = icmp eq i8 %x, 1
%or = or i1 %c, %cmp
%and = and i1 %cmp2, %or
ret i1 %and
}
define i1 @and_not_implied(i8 %x, i1 %c) {
; CHECK-LABEL: @and_not_implied(
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT: [[CMP2:%.*]] = icmp eq i8 [[X]], 0
; CHECK-NEXT: [[OR:%.*]] = or i1 [[CMP]], [[C:%.*]]
; CHECK-NEXT: [[AND:%.*]] = and i1 [[OR]], [[CMP2]]
; CHECK-NEXT: ret i1 [[AND]]
;
%cmp = icmp ne i8 %x, 0
%cmp2 = icmp eq i8 %x, 0
%or = or i1 %cmp, %c
%and = and i1 %or, %cmp2
ret i1 %and
}
define i1 @uaddo_and(i64 %a, i64 %b){
; CHECK-LABEL: @uaddo_and(
; CHECK-NEXT: [[S:%.*]] = add i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[COND_A:%.*]] = icmp uge i64 [[S]], [[A]]
; CHECK-NEXT: ret i1 [[COND_A]]
;
%s = add i64 %a, %b
%cond_a = icmp uge i64 %s, %a
%cond_b = icmp uge i64 %s, %b
%cond = and i1 %cond_a, %cond_b
ret i1 %cond
}
define i1 @uaddo_and_commuted1(i64 %a, i64 %b){
; CHECK-LABEL: @uaddo_and_commuted1(
; CHECK-NEXT: [[S:%.*]] = add i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[COND_A:%.*]] = icmp ule i64 [[A]], [[S]]
; CHECK-NEXT: ret i1 [[COND_A]]
;
%s = add i64 %a, %b
%cond_a = icmp ule i64 %a, %s
%cond_b = icmp uge i64 %s, %b
%cond = and i1 %cond_a, %cond_b
ret i1 %cond
}
define i1 @uaddo_and_commuted2(i64 %a, i64 %b){
; CHECK-LABEL: @uaddo_and_commuted2(
; CHECK-NEXT: [[S:%.*]] = add i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[COND_A:%.*]] = icmp uge i64 [[S]], [[A]]
; CHECK-NEXT: ret i1 [[COND_A]]
;
%s = add i64 %a, %b
%cond_a = icmp uge i64 %s, %a
%cond_b = icmp ule i64 %b, %s
%cond = and i1 %cond_a, %cond_b
ret i1 %cond
}
define i1 @uaddo_and_commuted3(i64 %a, i64 %b){
; CHECK-LABEL: @uaddo_and_commuted3(
; CHECK-NEXT: [[S:%.*]] = add i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[COND_A:%.*]] = icmp ule i64 [[A]], [[S]]
; CHECK-NEXT: ret i1 [[COND_A]]
;
%s = add i64 %a, %b
%cond_a = icmp ule i64 %a, %s
%cond_b = icmp ule i64 %b, %s
%cond = and i1 %cond_a, %cond_b
ret i1 %cond
}
define i1 @uaddo_or(i64 %a, i64 %b){
; CHECK-LABEL: @uaddo_or(
; CHECK-NEXT: [[S:%.*]] = add i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[COND_A:%.*]] = icmp ult i64 [[S]], [[A]]
; CHECK-NEXT: ret i1 [[COND_A]]
;
%s = add i64 %a, %b
%cond_a = icmp ult i64 %s, %a
%cond_b = icmp ult i64 %s, %b
%cond = or i1 %cond_a, %cond_b
ret i1 %cond
}
define i1 @uaddo_or_commuted1(i64 %a, i64 %b){
; CHECK-LABEL: @uaddo_or_commuted1(
; CHECK-NEXT: [[S:%.*]] = add i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[COND_A:%.*]] = icmp ugt i64 [[A]], [[S]]
; CHECK-NEXT: ret i1 [[COND_A]]
;
%s = add i64 %a, %b
%cond_a = icmp ugt i64 %a, %s
%cond_b = icmp ult i64 %s, %b
%cond = or i1 %cond_a, %cond_b
ret i1 %cond
}
define i1 @uaddo_or_commuted2(i64 %a, i64 %b){
; CHECK-LABEL: @uaddo_or_commuted2(
; CHECK-NEXT: [[S:%.*]] = add i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[COND_A:%.*]] = icmp ult i64 [[S]], [[A]]
; CHECK-NEXT: ret i1 [[COND_A]]
;
%s = add i64 %a, %b
%cond_a = icmp ult i64 %s, %a
%cond_b = icmp ugt i64 %b, %s
%cond = or i1 %cond_a, %cond_b
ret i1 %cond
}
define i1 @uaddo_or_commuted3(i64 %a, i64 %b){
; CHECK-LABEL: @uaddo_or_commuted3(
; CHECK-NEXT: [[S:%.*]] = add i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[COND_A:%.*]] = icmp ugt i64 [[A]], [[S]]
; CHECK-NEXT: ret i1 [[COND_A]]
;
%s = add i64 %a, %b
%cond_a = icmp ugt i64 %a, %s
%cond_b = icmp ugt i64 %b, %s
%cond = or i1 %cond_a, %cond_b
ret i1 %cond
}
define i1 @pr69050(i32 %arg, i32 %arg1) {
; CHECK-LABEL: @pr69050(
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[ARG:%.*]], -1
; CHECK-NEXT: [[AND:%.*]] = and i32 [[XOR]], [[ARG1:%.*]]
; CHECK-NEXT: [[ICMP:%.*]] = icmp ne i32 [[AND]], 0
; CHECK-NEXT: ret i1 [[ICMP]]
;
%xor = xor i32 %arg, -1
%and = and i32 %xor, %arg1
%icmp = icmp ne i32 %and, 0
%icmp2 = icmp ne i32 %arg, -1
%and3 = and i1 %icmp2, %icmp
ret i1 %and3
}
define i1 @pr69091(i32 %arg, i32 %arg1) {
; CHECK-LABEL: @pr69091(
; CHECK-NEXT: [[ICMP:%.*]] = icmp ne i32 [[ARG:%.*]], -1
; CHECK-NEXT: ret i1 [[ICMP]]
;
%icmp = icmp ne i32 %arg, -1
%add = add i32 %arg, 1
%mul = mul i32 %add, %arg1
%icmp2 = icmp ne i32 %mul, 0
%or = or i1 %icmp, %icmp2
ret i1 %or
}
declare void @barrier()
define i1 @or_icmp_implies_ub(i32 %x) {
; CHECK-LABEL: @or_icmp_implies_ub(
; CHECK-NEXT: [[CMP1:%.*]] = icmp ne i32 [[X:%.*]], 0
; CHECK-NEXT: call void @barrier()
; CHECK-NEXT: ret i1 [[CMP1]]
;
%cmp1 = icmp ne i32 %x, 0
call void @barrier()
%div = udiv i32 2147483647, %x
%cmp2 = icmp ugt i32 %x, %div
%or = or i1 %cmp1, %cmp2
ret i1 %or
}
define i1 @and_icmp_implies_ub(i32 %x) {
; CHECK-LABEL: @and_icmp_implies_ub(
; CHECK-NEXT: call void @barrier()
; CHECK-NEXT: ret i1 false
;
%cmp1 = icmp eq i32 %x, 0
call void @barrier()
%div = udiv i32 2147483647, %x
%cmp2 = icmp ugt i32 %x, %div
%and = and i1 %cmp1, %cmp2
ret i1 %and
}
define i1 @or_icmp_implies_poison(i32 %x) {
; CHECK-LABEL: @or_icmp_implies_poison(
; CHECK-NEXT: [[CMP1:%.*]] = icmp ne i32 [[X:%.*]], 32
; CHECK-NEXT: [[SHL:%.*]] = shl i32 1, [[X]]
; CHECK-NEXT: [[CMP2:%.*]] = icmp ugt i32 [[X]], [[SHL]]
; CHECK-NEXT: [[OR:%.*]] = or i1 [[CMP1]], [[CMP2]]
; CHECK-NEXT: ret i1 [[OR]]
;
%cmp1 = icmp ne i32 %x, 32
%shl = shl i32 1, %x
%cmp2 = icmp ugt i32 %x, %shl
%or = or i1 %cmp1, %cmp2
ret i1 %or
}
define i1 @and_icmp_implies_poison(i32 %x) {
; CHECK-LABEL: @and_icmp_implies_poison(
; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[X:%.*]], 32
; CHECK-NEXT: [[SHL:%.*]] = shl i32 1, [[X]]
; CHECK-NEXT: [[CMP2:%.*]] = icmp ugt i32 [[X]], [[SHL]]
; CHECK-NEXT: [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
; CHECK-NEXT: ret i1 [[AND]]
;
%cmp1 = icmp eq i32 %x, 32
%shl = shl i32 1, %x
%cmp2 = icmp ugt i32 %x, %shl
%and = and i1 %cmp1, %cmp2
ret i1 %and
}
define i1 @and_is_constant(ptr %arg, ptr %arg2) {
; CHECK-LABEL: @and_is_constant(
; CHECK-NEXT: [[ICMP:%.*]] = icmp eq ptr [[ARG:%.*]], [[ARG2:%.*]]
; CHECK-NEXT: [[CALL:%.*]] = call i1 @llvm.is.constant.i1(i1 [[ICMP]])
; CHECK-NEXT: [[AND:%.*]] = and i1 [[CALL]], [[ICMP]]
; CHECK-NEXT: ret i1 [[AND]]
;
%icmp = icmp eq ptr %arg, %arg2
%call = call i1 @llvm.is.constant.i1(i1 %icmp)
%and = and i1 %call, %icmp
ret i1 %and
}
define i1 @pr98753(i32 noundef %x, i32 %y) {
; CHECK-LABEL: @pr98753(
; CHECK-NEXT: [[CMP1:%.*]] = icmp ne i32 [[X:%.*]], 0
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP1]], i32 [[Y:%.*]], i32 undef
; CHECK-NEXT: [[CMP2:%.*]] = icmp sgt i32 [[SEL]], 0
; CHECK-NEXT: [[AND:%.*]] = and i1 [[CMP1]], [[CMP2]]
; CHECK-NEXT: ret i1 [[AND]]
;
%cmp1 = icmp ne i32 %x, 0
%sel = select i1 %cmp1, i32 %y, i32 undef
%cmp2 = icmp sgt i32 %sel, 0
%and = and i1 %cmp1, %cmp2
ret i1 %and
}
define i1 @and_trunc_nuw_implied(i8 %x, i8 %y) {
; CHECK-LABEL: @and_trunc_nuw_implied(
; CHECK-NEXT: [[TRUNC:%.*]] = trunc nuw i8 [[X:%.*]] to i1
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[TRUNC]], i8 [[Y:%.*]], i8 0
; CHECK-NEXT: [[ICMP:%.*]] = icmp ne i8 [[SELECT]], 0
; CHECK-NEXT: ret i1 [[ICMP]]
;
%trunc = trunc nuw i8 %x to i1
%select = select i1 %trunc, i8 %y, i8 0
%icmp = icmp ne i8 %select, 0
%and = and i1 %trunc, %icmp
ret i1 %and
}
define i1 @or_trunc_nuw_implied(i8 %x, i8 %y) {
; CHECK-LABEL: @or_trunc_nuw_implied(
; CHECK-NEXT: [[TRUNC:%.*]] = trunc nuw i8 [[X:%.*]] to i1
; CHECK-NEXT: ret i1 [[TRUNC]]
;
%trunc = trunc nuw i8 %x to i1
%select = select i1 %trunc, i8 %y, i8 0
%icmp = icmp ne i8 %select, 0
%and = or i1 %trunc, %icmp
ret i1 %and
}
define i1 @or_trunc_nuw_implied_to_true(i8 %x, i8 %y) {
; CHECK-LABEL: @or_trunc_nuw_implied_to_true(
; CHECK-NEXT: ret i1 true
;
%trunc = trunc nuw i8 %x to i1
%select = select i1 %trunc, i8 %y, i8 0
%icmp = icmp eq i8 %select, 0
%and = or i1 %trunc, %icmp
ret i1 %and
}
define i1 @neg_or_trunc_implied(i8 %x, i8 %y) {
; CHECK-LABEL: @neg_or_trunc_implied(
; CHECK-NEXT: [[TRUNC:%.*]] = trunc i8 [[X:%.*]] to i1
; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[TRUNC]], i8 [[Y:%.*]], i8 0
; CHECK-NEXT: [[ICMP:%.*]] = icmp eq i8 [[SELECT]], 0
; CHECK-NEXT: [[AND:%.*]] = or i1 [[TRUNC]], [[ICMP]]
; CHECK-NEXT: ret i1 [[AND]]
;
%trunc = trunc i8 %x to i1
%select = select i1 %trunc, i8 %y, i8 0
%icmp = icmp eq i8 %select, 0
%and = or i1 %trunc, %icmp
ret i1 %and
}
declare i1 @llvm.is.constant.i1(i1)
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