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