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TheRock/compiler/amd-llvm/llvm/test/Transforms/PhaseOrdering/reassociate-gvn-bdce.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=reassociate,gvn,bdce -S | FileCheck %s
; (~(a | b) & c) | ~(a | (b | c)) -> ~(a | b)
; (~(a | b) & c) | ~(b | (a | c)) -> ~(a | b)
define i32 @not_or_and_or_not_or_or(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @not_or_and_or_not_or_or(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: ret i32 [[NOT2]]
;
%or1 = or i32 %b, %c
%or2 = or i32 %or1, %a
%not1 = xor i32 %or2, -1
%or3 = or i32 %b, %a
%not2 = xor i32 %or3, -1
%and2 = and i32 %not2, %c
%or4 = or i32 %and2, %not1
ret i32 %or4
}
define i32 @not_or_and_or_not_or_or_commute1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @not_or_and_or_not_or_or_commute1(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: ret i32 [[NOT2]]
;
%or1 = or i32 %a, %c
%or2 = or i32 %or1, %b
%not1 = xor i32 %or2, -1
%or3 = or i32 %b, %a
%not2 = xor i32 %or3, -1
%and2 = and i32 %not2, %c
%or4 = or i32 %and2, %not1
ret i32 %or4
}
define i32 @not_or_and_or_not_or_or_commute2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @not_or_and_or_not_or_or_commute2(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: ret i32 [[NOT2]]
;
%or1 = or i32 %c, %b
%or2 = or i32 %or1, %a
%not1 = xor i32 %or2, -1
%or3 = or i32 %b, %a
%not2 = xor i32 %or3, -1
%and2 = and i32 %not2, %c
%or4 = or i32 %and2, %not1
ret i32 %or4
}
define i32 @not_or_and_or_not_or_or_commute3(i32 %a0, i32 %b, i32 %c) {
; CHECK-LABEL: @not_or_and_or_not_or_or_commute3(
; CHECK-NEXT: [[A:%.*]] = sdiv i32 42, [[A0:%.*]]
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[A]], [[B:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: ret i32 [[NOT2]]
;
%a = sdiv i32 42, %a0 ; thwart complexity-based canonicalization
%or1 = or i32 %b, %c
%or2 = or i32 %a, %or1
%not1 = xor i32 %or2, -1
%or3 = or i32 %a, %b
%not2 = xor i32 %or3, -1
%and2 = and i32 %not2, %c
%or4 = or i32 %and2, %not1
ret i32 %or4
}
define i32 @not_or_and_or_not_or_or_commute4(i32 %a, i32 %b0, i32 %c) {
; CHECK-LABEL: @not_or_and_or_not_or_or_commute4(
; CHECK-NEXT: [[B:%.*]] = sdiv i32 42, [[B0:%.*]]
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B]], [[A:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: ret i32 [[NOT2]]
;
%b = sdiv i32 42, %b0 ; thwart complexity-based canonicalization
%or1 = or i32 %a, %c
%or2 = or i32 %b, %or1
%not1 = xor i32 %or2, -1
%or3 = or i32 %b, %a
%not2 = xor i32 %or3, -1
%and2 = and i32 %not2, %c
%or4 = or i32 %and2, %not1
ret i32 %or4
}
define i32 @not_or_and_or_not_or_or_commute5(i32 %a, i32 %b, i32 %c0) {
; CHECK-LABEL: @not_or_and_or_not_or_or_commute5(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: ret i32 [[NOT2]]
;
%c = sdiv i32 42, %c0 ; thwart complexity-based canonicalization
%or1 = or i32 %c, %a
%or2 = or i32 %or1, %b
%not1 = xor i32 %or2, -1
%or3 = or i32 %b, %a
%not2 = xor i32 %or3, -1
%and2 = and i32 %c, %not2
%or4 = or i32 %and2, %not1
ret i32 %or4
}
define i32 @not_or_and_or_not_or_or_use1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @not_or_and_or_not_or_or_use1(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[OR1]], [[C:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: call void @use(i32 [[NOT1]])
; CHECK-NEXT: ret i32 [[NOT2]]
;
%or1 = or i32 %b, %c
%or2 = or i32 %or1, %a
%not1 = xor i32 %or2, -1
%or3 = or i32 %b, %a
%not2 = xor i32 %or3, -1
%and2 = and i32 %not2, %c
%or4 = or i32 %and2, %not1
call void @use(i32 %not1)
ret i32 %or4
}
define i32 @not_or_and_or_not_or_or_use2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @not_or_and_or_not_or_or_use2(
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[OR1]], [[C:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[OR2]], -1
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[OR1]], -1
; CHECK-NEXT: call void @use(i32 [[NOT1]])
; CHECK-NEXT: ret i32 [[NOT2]]
;
%or1 = or i32 %a, %c
%or2 = or i32 %or1, %b
%not1 = xor i32 %or2, -1
%or3 = or i32 %b, %a
%not2 = xor i32 %or3, -1
%and2 = and i32 %not2, %c
%or4 = or i32 %and2, %not1
call void @use(i32 %not1)
ret i32 %or4
}
; (~(a & b) | c) & ~(a & (b & c)) -> ~(a & b)
; (~(a & b) | c) & ~(b & (a & c)) -> ~(a & b)
define i32 @not_and_or_and_not_and_and(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @not_and_or_and_not_and_and(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: ret i32 [[NOT2]]
;
%and1 = and i32 %b, %c
%and2 = and i32 %and1, %a
%not1 = xor i32 %and2, -1
%and3 = and i32 %b, %a
%not2 = xor i32 %and3, -1
%or2 = or i32 %not2, %c
%and4 = and i32 %or2, %not1
ret i32 %and4
}
define i32 @not_and_or_and_not_and_and_commute1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @not_and_or_and_not_and_and_commute1(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: ret i32 [[NOT2]]
;
%and1 = and i32 %a, %c
%and2 = and i32 %and1, %b
%not1 = xor i32 %and2, -1
%and3 = and i32 %b, %a
%not2 = xor i32 %and3, -1
%or2 = or i32 %not2, %c
%and4 = and i32 %or2, %not1
ret i32 %and4
}
define i32 @not_and_or_and_not_and_and_commute2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @not_and_or_and_not_and_and_commute2(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: ret i32 [[NOT2]]
;
%and1 = and i32 %c, %b
%and2 = and i32 %and1, %a
%not1 = xor i32 %and2, -1
%and3 = and i32 %b, %a
%not2 = xor i32 %and3, -1
%or2 = or i32 %not2, %c
%and4 = and i32 %or2, %not1
ret i32 %and4
}
define i32 @not_and_or_and_not_and_and_commute3(i32 %a0, i32 %b, i32 %c) {
; CHECK-LABEL: @not_and_or_and_not_and_and_commute3(
; CHECK-NEXT: [[A:%.*]] = sdiv i32 42, [[A0:%.*]]
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[A]], [[B:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: ret i32 [[NOT2]]
;
%a = sdiv i32 42, %a0 ; thwart complexity-based canonicalization
%and1 = and i32 %b, %c
%and2 = and i32 %a, %and1
%not1 = xor i32 %and2, -1
%and3 = and i32 %a, %b
%not2 = xor i32 %and3, -1
%or2 = or i32 %not2, %c
%and4 = and i32 %or2, %not1
ret i32 %and4
}
define i32 @not_and_or_and_not_and_and_commute4(i32 %a, i32 %b0, i32 %c) {
; CHECK-LABEL: @not_and_or_and_not_and_and_commute4(
; CHECK-NEXT: [[B:%.*]] = sdiv i32 42, [[B0:%.*]]
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B]], [[A:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: ret i32 [[NOT2]]
;
%b = sdiv i32 42, %b0 ; thwart complexity-based canonicalization
%and1 = and i32 %a, %c
%and2 = and i32 %b, %and1
%not1 = xor i32 %and2, -1
%and3 = and i32 %b, %a
%not2 = xor i32 %and3, -1
%or2 = or i32 %not2, %c
%and4 = and i32 %or2, %not1
ret i32 %and4
}
define i32 @not_and_or_and_not_and_and_commute5(i32 %a, i32 %b, i32 %c0) {
; CHECK-LABEL: @not_and_or_and_not_and_and_commute5(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: ret i32 [[NOT2]]
;
%c = sdiv i32 42, %c0 ; thwart complexity-based canonicalization
%and1 = and i32 %c, %a
%and2 = and i32 %and1, %b
%not1 = xor i32 %and2, -1
%and3 = and i32 %b, %a
%not2 = xor i32 %and3, -1
%or2 = or i32 %c, %not2
%and4 = and i32 %or2, %not1
ret i32 %and4
}
define i32 @not_and_or_and_not_and_and_use1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @not_and_or_and_not_and_and_use1(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[AND1]], [[C:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: call void @use(i32 [[NOT1]])
; CHECK-NEXT: ret i32 [[NOT2]]
;
%and1 = and i32 %b, %c
%and2 = and i32 %and1, %a
%not1 = xor i32 %and2, -1
%and3 = and i32 %b, %a
%not2 = xor i32 %and3, -1
%or2 = or i32 %not2, %c
%and4 = and i32 %or2, %not1
call void @use(i32 %not1)
ret i32 %and4
}
define i32 @not_and_or_and_not_and_and_use2(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: @not_and_or_and_not_and_and_use2(
; CHECK-NEXT: [[AND1:%.*]] = and i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[AND2:%.*]] = and i32 [[AND1]], [[C:%.*]]
; CHECK-NEXT: [[NOT1:%.*]] = xor i32 [[AND2]], -1
; CHECK-NEXT: [[NOT2:%.*]] = xor i32 [[AND1]], -1
; CHECK-NEXT: call void @use(i32 [[NOT1]])
; CHECK-NEXT: ret i32 [[NOT2]]
;
%and1 = and i32 %a, %c
%and2 = and i32 %and1, %b
%not1 = xor i32 %and2, -1
%and3 = and i32 %b, %a
%not2 = xor i32 %and3, -1
%or2 = or i32 %not2, %c
%and4 = and i32 %or2, %not1
call void @use(i32 %not1)
ret i32 %and4
}
declare void @use(i32)
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