643 lines
18 KiB
LLVM
643 lines
18 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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; PR1510
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; (a | b) & ~(a & b) --> a ^ b
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define i32 @and_to_xor1(i32 %a, i32 %b) {
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; CHECK-LABEL: @and_to_xor1(
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; CHECK-NEXT: [[AND2:%.*]] = xor i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: ret i32 [[AND2]]
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;
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%or = or i32 %a, %b
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%and = and i32 %a, %b
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%not = xor i32 %and, -1
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%and2 = and i32 %or, %not
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ret i32 %and2
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}
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; ~(a & b) & (a | b) --> a ^ b
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define i32 @and_to_xor2(i32 %a, i32 %b) {
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; CHECK-LABEL: @and_to_xor2(
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; CHECK-NEXT: [[AND2:%.*]] = xor i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: ret i32 [[AND2]]
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;
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%or = or i32 %a, %b
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%and = and i32 %a, %b
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%not = xor i32 %and, -1
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%and2 = and i32 %not, %or
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ret i32 %and2
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}
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; (a | b) & ~(b & a) --> a ^ b
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define i32 @and_to_xor3(i32 %a, i32 %b) {
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; CHECK-LABEL: @and_to_xor3(
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; CHECK-NEXT: [[AND2:%.*]] = xor i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: ret i32 [[AND2]]
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;
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%or = or i32 %a, %b
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%and = and i32 %b, %a
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%not = xor i32 %and, -1
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%and2 = and i32 %or, %not
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ret i32 %and2
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}
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; ~(a & b) & (b | a) --> a ^ b
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define i32 @and_to_xor4(i32 %a, i32 %b) {
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; CHECK-LABEL: @and_to_xor4(
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; CHECK-NEXT: [[AND2:%.*]] = xor i32 [[B:%.*]], [[A:%.*]]
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; CHECK-NEXT: ret i32 [[AND2]]
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;
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%or = or i32 %b, %a
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%and = and i32 %a, %b
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%not = xor i32 %and, -1
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%and2 = and i32 %not, %or
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ret i32 %and2
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}
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define <4 x i32> @and_to_xor1_vec(<4 x i32> %a, <4 x i32> %b) {
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; CHECK-LABEL: @and_to_xor1_vec(
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; CHECK-NEXT: [[AND2:%.*]] = xor <4 x i32> [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: ret <4 x i32> [[AND2]]
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;
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%or = or <4 x i32> %a, %b
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%and = and <4 x i32> %a, %b
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%not = xor <4 x i32> %and, < i32 -1, i32 -1, i32 -1, i32 -1 >
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%and2 = and <4 x i32> %or, %not
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ret <4 x i32> %and2
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}
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; In the next 4 tests, cast instructions are used to thwart operand complexity
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; canonicalizations, so we can test all of the commuted patterns.
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; (a | ~b) & (~a | b) --> ~(a ^ b)
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define i32 @and_to_nxor1(float %fa, float %fb) {
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; CHECK-LABEL: @and_to_nxor1(
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; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
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; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A]], [[B]]
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; CHECK-NEXT: [[AND:%.*]] = xor i32 [[TMP1]], -1
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; CHECK-NEXT: ret i32 [[AND]]
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;
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%a = fptosi float %fa to i32
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%b = fptosi float %fb to i32
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%nota = xor i32 %a, -1
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%notb = xor i32 %b, -1
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%or1 = or i32 %a, %notb
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%or2 = or i32 %nota, %b
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%and = and i32 %or1, %or2
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ret i32 %and
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}
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; (a | ~b) & (b | ~a) --> ~(a ^ b)
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define i32 @and_to_nxor2(float %fa, float %fb) {
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; CHECK-LABEL: @and_to_nxor2(
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; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
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; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A]], [[B]]
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; CHECK-NEXT: [[AND:%.*]] = xor i32 [[TMP1]], -1
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; CHECK-NEXT: ret i32 [[AND]]
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;
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%a = fptosi float %fa to i32
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%b = fptosi float %fb to i32
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%nota = xor i32 %a, -1
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%notb = xor i32 %b, -1
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%or1 = or i32 %a, %notb
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%or2 = or i32 %b, %nota
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%and = and i32 %or1, %or2
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ret i32 %and
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}
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; (~a | b) & (a | ~b) --> ~(a ^ b)
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define i32 @and_to_nxor3(float %fa, float %fb) {
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; CHECK-LABEL: @and_to_nxor3(
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; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
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; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[B]], [[A]]
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; CHECK-NEXT: [[AND:%.*]] = xor i32 [[TMP1]], -1
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; CHECK-NEXT: ret i32 [[AND]]
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;
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%a = fptosi float %fa to i32
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%b = fptosi float %fb to i32
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%nota = xor i32 %a, -1
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%notb = xor i32 %b, -1
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%or1 = or i32 %nota, %b
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%or2 = or i32 %a, %notb
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%and = and i32 %or1, %or2
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ret i32 %and
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}
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; (~a | b) & (~b | a) --> ~(a ^ b)
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define i32 @and_to_nxor4(float %fa, float %fb) {
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; CHECK-LABEL: @and_to_nxor4(
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; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
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; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[B]], [[A]]
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; CHECK-NEXT: [[AND:%.*]] = xor i32 [[TMP1]], -1
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; CHECK-NEXT: ret i32 [[AND]]
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;
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%a = fptosi float %fa to i32
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%b = fptosi float %fb to i32
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%nota = xor i32 %a, -1
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%notb = xor i32 %b, -1
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%or1 = or i32 %nota, %b
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%or2 = or i32 %notb, %a
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%and = and i32 %or1, %or2
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ret i32 %and
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}
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; (a & ~b) | (~a & b) --> a ^ b
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define i32 @or_to_xor1(float %fa, float %fb) {
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; CHECK-LABEL: @or_to_xor1(
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; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
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; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
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; CHECK-NEXT: [[OR:%.*]] = xor i32 [[A]], [[B]]
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; CHECK-NEXT: ret i32 [[OR]]
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;
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%a = fptosi float %fa to i32
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%b = fptosi float %fb to i32
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%nota = xor i32 %a, -1
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%notb = xor i32 %b, -1
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%and1 = and i32 %a, %notb
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%and2 = and i32 %nota, %b
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%or = or i32 %and1, %and2
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ret i32 %or
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}
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; (a & ~b) | (b & ~a) --> a ^ b
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define i32 @or_to_xor2(float %fa, float %fb) {
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; CHECK-LABEL: @or_to_xor2(
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; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
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; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
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; CHECK-NEXT: [[OR:%.*]] = xor i32 [[A]], [[B]]
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; CHECK-NEXT: ret i32 [[OR]]
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;
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%a = fptosi float %fa to i32
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%b = fptosi float %fb to i32
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%nota = xor i32 %a, -1
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%notb = xor i32 %b, -1
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%and1 = and i32 %a, %notb
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%and2 = and i32 %b, %nota
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%or = or i32 %and1, %and2
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ret i32 %or
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}
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; (~a & b) | (~b & a) --> a ^ b
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define i32 @or_to_xor3(float %fa, float %fb) {
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; CHECK-LABEL: @or_to_xor3(
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; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
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; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
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; CHECK-NEXT: [[OR:%.*]] = xor i32 [[B]], [[A]]
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; CHECK-NEXT: ret i32 [[OR]]
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;
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%a = fptosi float %fa to i32
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%b = fptosi float %fb to i32
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%nota = xor i32 %a, -1
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%notb = xor i32 %b, -1
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%and1 = and i32 %nota, %b
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%and2 = and i32 %notb, %a
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%or = or i32 %and1, %and2
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ret i32 %or
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}
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; (~a & b) | (a & ~b) --> a ^ b
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define i32 @or_to_xor4(float %fa, float %fb) {
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; CHECK-LABEL: @or_to_xor4(
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; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
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; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
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; CHECK-NEXT: [[OR:%.*]] = xor i32 [[B]], [[A]]
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; CHECK-NEXT: ret i32 [[OR]]
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;
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%a = fptosi float %fa to i32
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%b = fptosi float %fb to i32
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%nota = xor i32 %a, -1
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%notb = xor i32 %b, -1
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%and1 = and i32 %nota, %b
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%and2 = and i32 %a, %notb
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%or = or i32 %and1, %and2
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ret i32 %or
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}
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; (a & b) | ~(a | b) --> ~(a ^ b)
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define i32 @or_to_nxor1(i32 %a, i32 %b) {
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; CHECK-LABEL: @or_to_nxor1(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[OR2:%.*]] = xor i32 [[TMP1]], -1
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; CHECK-NEXT: ret i32 [[OR2]]
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;
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%and = and i32 %a, %b
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%or = or i32 %a, %b
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%notor = xor i32 %or, -1
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%or2 = or i32 %and, %notor
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ret i32 %or2
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}
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; (a & b) | ~(b | a) --> ~(a ^ b)
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define i32 @or_to_nxor2(i32 %a, i32 %b) {
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; CHECK-LABEL: @or_to_nxor2(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[OR2:%.*]] = xor i32 [[TMP1]], -1
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; CHECK-NEXT: ret i32 [[OR2]]
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;
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%and = and i32 %a, %b
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%or = or i32 %b, %a
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%notor = xor i32 %or, -1
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%or2 = or i32 %and, %notor
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ret i32 %or2
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}
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; ~(a | b) | (a & b) --> ~(a ^ b)
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define i32 @or_to_nxor3(i32 %a, i32 %b) {
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; CHECK-LABEL: @or_to_nxor3(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[OR2:%.*]] = xor i32 [[TMP1]], -1
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; CHECK-NEXT: ret i32 [[OR2]]
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;
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%and = and i32 %a, %b
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%or = or i32 %a, %b
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%notor = xor i32 %or, -1
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%or2 = or i32 %notor, %and
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ret i32 %or2
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}
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; ~(a | b) | (b & a) --> ~(a ^ b)
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define i32 @or_to_nxor4(i32 %a, i32 %b) {
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; CHECK-LABEL: @or_to_nxor4(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[B:%.*]], [[A:%.*]]
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; CHECK-NEXT: [[OR2:%.*]] = xor i32 [[TMP1]], -1
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; CHECK-NEXT: ret i32 [[OR2]]
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;
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%and = and i32 %b, %a
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%or = or i32 %a, %b
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%notor = xor i32 %or, -1
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%or2 = or i32 %notor, %and
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ret i32 %or2
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}
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; (a & b) ^ (a | b) --> a ^ b
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define i32 @xor_to_xor1(i32 %a, i32 %b) {
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; CHECK-LABEL: @xor_to_xor1(
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: ret i32 [[XOR]]
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;
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%and = and i32 %a, %b
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%or = or i32 %a, %b
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%xor = xor i32 %and, %or
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ret i32 %xor
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}
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; (a & b) ^ (b | a) --> a ^ b
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define i32 @xor_to_xor2(i32 %a, i32 %b) {
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; CHECK-LABEL: @xor_to_xor2(
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: ret i32 [[XOR]]
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;
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%and = and i32 %a, %b
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%or = or i32 %b, %a
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%xor = xor i32 %and, %or
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ret i32 %xor
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}
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; (a | b) ^ (a & b) --> a ^ b
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|
|
define i32 @xor_to_xor3(i32 %a, i32 %b) {
|
||
|
|
; CHECK-LABEL: @xor_to_xor3(
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A:%.*]], [[B:%.*]]
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%or = or i32 %a, %b
|
||
|
|
%and = and i32 %a, %b
|
||
|
|
%xor = xor i32 %or, %and
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; (a | b) ^ (b & a) --> a ^ b
|
||
|
|
|
||
|
|
define i32 @xor_to_xor4(i32 %a, i32 %b) {
|
||
|
|
; CHECK-LABEL: @xor_to_xor4(
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[B:%.*]], [[A:%.*]]
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%or = or i32 %a, %b
|
||
|
|
%and = and i32 %b, %a
|
||
|
|
%xor = xor i32 %or, %and
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; (a | ~b) ^ (~a | b) --> a ^ b
|
||
|
|
|
||
|
|
; In the next 8 tests, cast instructions are used to thwart operand complexity
|
||
|
|
; canonicalizations, so we can test all of the commuted patterns.
|
||
|
|
|
||
|
|
define i32 @xor_to_xor5(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @xor_to_xor5(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A]], [[B]]
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%or1 = or i32 %a, %notb
|
||
|
|
%or2 = or i32 %nota, %b
|
||
|
|
%xor = xor i32 %or1, %or2
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; (a | ~b) ^ (b | ~a) --> a ^ b
|
||
|
|
|
||
|
|
define i32 @xor_to_xor6(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @xor_to_xor6(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A]], [[B]]
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%or1 = or i32 %a, %notb
|
||
|
|
%or2 = or i32 %b, %nota
|
||
|
|
%xor = xor i32 %or1, %or2
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; (~a | b) ^ (a | ~b) --> a ^ b
|
||
|
|
|
||
|
|
define i32 @xor_to_xor7(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @xor_to_xor7(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[B]], [[A]]
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%or1 = or i32 %a, %notb
|
||
|
|
%or2 = or i32 %nota, %b
|
||
|
|
%xor = xor i32 %or2, %or1
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; (~a | b) ^ (~b | a) --> a ^ b
|
||
|
|
|
||
|
|
define i32 @xor_to_xor8(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @xor_to_xor8(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[B]], [[A]]
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%or1 = or i32 %notb, %a
|
||
|
|
%or2 = or i32 %nota, %b
|
||
|
|
%xor = xor i32 %or2, %or1
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; (a & ~b) ^ (~a & b) --> a ^ b
|
||
|
|
|
||
|
|
define i32 @xor_to_xor9(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @xor_to_xor9(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A]], [[B]]
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%and1 = and i32 %a, %notb
|
||
|
|
%and2 = and i32 %nota, %b
|
||
|
|
%xor = xor i32 %and1, %and2
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; (a & ~b) ^ (b & ~a) --> a ^ b
|
||
|
|
|
||
|
|
define i32 @xor_to_xor10(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @xor_to_xor10(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[A]], [[B]]
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%and1 = and i32 %a, %notb
|
||
|
|
%and2 = and i32 %b, %nota
|
||
|
|
%xor = xor i32 %and1, %and2
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; (~a & b) ^ (a & ~b) --> a ^ b
|
||
|
|
|
||
|
|
define i32 @xor_to_xor11(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @xor_to_xor11(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[B]], [[A]]
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%and1 = and i32 %a, %notb
|
||
|
|
%and2 = and i32 %nota, %b
|
||
|
|
%xor = xor i32 %and2, %and1
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; (~a & b) ^ (~b & a) --> a ^ b
|
||
|
|
|
||
|
|
define i32 @xor_to_xor12(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @xor_to_xor12(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[B]], [[A]]
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%and1 = and i32 %notb, %a
|
||
|
|
%and2 = and i32 %nota, %b
|
||
|
|
%xor = xor i32 %and2, %and1
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; https://bugs.llvm.org/show_bug.cgi?id=32830
|
||
|
|
; Make sure we're matching operands correctly and not folding things wrongly.
|
||
|
|
|
||
|
|
define i64 @PR32830(i64 %a, i64 %b, i64 %c) {
|
||
|
|
; CHECK-LABEL: @PR32830(
|
||
|
|
; CHECK-NEXT: [[NOTA:%.*]] = xor i64 [[A:%.*]], -1
|
||
|
|
; CHECK-NEXT: [[NOTB:%.*]] = xor i64 [[B:%.*]], -1
|
||
|
|
; CHECK-NEXT: [[OR1:%.*]] = or i64 [[NOTB]], [[A]]
|
||
|
|
; CHECK-NEXT: [[OR2:%.*]] = or i64 [[NOTA]], [[C:%.*]]
|
||
|
|
; CHECK-NEXT: [[AND:%.*]] = and i64 [[OR1]], [[OR2]]
|
||
|
|
; CHECK-NEXT: ret i64 [[AND]]
|
||
|
|
;
|
||
|
|
%nota = xor i64 %a, -1
|
||
|
|
%notb = xor i64 %b, -1
|
||
|
|
%or1 = or i64 %notb, %a
|
||
|
|
%or2 = or i64 %nota, %c
|
||
|
|
%and = and i64 %or1, %or2
|
||
|
|
ret i64 %and
|
||
|
|
}
|
||
|
|
|
||
|
|
; (~a | b) & (~b | a) --> ~(a ^ b)
|
||
|
|
; TODO: this increases instruction count if the pieces have additional users
|
||
|
|
define i32 @and_to_nxor_multiuse(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @and_to_nxor_multiuse(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[NOTA:%.*]] = xor i32 [[A]], -1
|
||
|
|
; CHECK-NEXT: [[NOTB:%.*]] = xor i32 [[B]], -1
|
||
|
|
; CHECK-NEXT: [[OR1:%.*]] = or i32 [[NOTA]], [[B]]
|
||
|
|
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[NOTB]], [[A]]
|
||
|
|
; CHECK-NEXT: [[AND:%.*]] = and i32 [[OR1]], [[OR2]]
|
||
|
|
; CHECK-NEXT: [[MUL1:%.*]] = mul i32 [[OR1]], [[OR2]]
|
||
|
|
; CHECK-NEXT: [[MUL2:%.*]] = mul i32 [[MUL1]], [[AND]]
|
||
|
|
; CHECK-NEXT: ret i32 [[MUL2]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%or1 = or i32 %nota, %b
|
||
|
|
%or2 = or i32 %notb, %a
|
||
|
|
%and = and i32 %or1, %or2
|
||
|
|
%mul1 = mul i32 %or1, %or2 ; here to increase the use count of the inputs to the and
|
||
|
|
%mul2 = mul i32 %mul1, %and
|
||
|
|
ret i32 %mul2
|
||
|
|
}
|
||
|
|
|
||
|
|
; (a & b) | ~(a | b) --> ~(a ^ b)
|
||
|
|
; TODO: this increases instruction count if the pieces have additional users
|
||
|
|
define i32 @or_to_nxor_multiuse(i32 %a, i32 %b) {
|
||
|
|
; CHECK-LABEL: @or_to_nxor_multiuse(
|
||
|
|
; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
|
||
|
|
; CHECK-NEXT: [[OR:%.*]] = or i32 [[A]], [[B]]
|
||
|
|
; CHECK-NEXT: [[NOTOR:%.*]] = xor i32 [[OR]], -1
|
||
|
|
; CHECK-NEXT: [[OR2:%.*]] = or i32 [[AND]], [[NOTOR]]
|
||
|
|
; CHECK-NEXT: [[MUL1:%.*]] = mul i32 [[AND]], [[NOTOR]]
|
||
|
|
; CHECK-NEXT: [[MUL2:%.*]] = mul i32 [[MUL1]], [[OR2]]
|
||
|
|
; CHECK-NEXT: ret i32 [[MUL2]]
|
||
|
|
;
|
||
|
|
%and = and i32 %a, %b
|
||
|
|
%or = or i32 %a, %b
|
||
|
|
%notor = xor i32 %or, -1
|
||
|
|
%or2 = or i32 %and, %notor
|
||
|
|
%mul1 = mul i32 %and, %notor ; here to increase the use count of the inputs to the or
|
||
|
|
%mul2 = mul i32 %mul1, %or2
|
||
|
|
ret i32 %mul2
|
||
|
|
}
|
||
|
|
|
||
|
|
; (a | b) ^ (~a | ~b) --> ~(a ^ b)
|
||
|
|
define i32 @xor_to_xnor1(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @xor_to_xnor1(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A]], [[B]]
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%or1 = or i32 %a, %b
|
||
|
|
%or2 = or i32 %nota, %notb
|
||
|
|
%xor = xor i32 %or1, %or2
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; (a | b) ^ (~b | ~a) --> ~(a ^ b)
|
||
|
|
define i32 @xor_to_xnor2(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @xor_to_xnor2(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A]], [[B]]
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%or1 = or i32 %a, %b
|
||
|
|
%or2 = or i32 %notb, %nota
|
||
|
|
%xor = xor i32 %or1, %or2
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; (~a | ~b) ^ (a | b) --> ~(a ^ b)
|
||
|
|
define i32 @xor_to_xnor3(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @xor_to_xnor3(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A]], [[B]]
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%or1 = or i32 %nota, %notb
|
||
|
|
%or2 = or i32 %a, %b
|
||
|
|
%xor = xor i32 %or1, %or2
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; (~a | ~b) ^ (b | a) --> ~(a ^ b)
|
||
|
|
define i32 @xor_to_xnor4(float %fa, float %fb) {
|
||
|
|
; CHECK-LABEL: @xor_to_xnor4(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = fptosi float [[FA:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = fptosi float [[FB:%.*]] to i32
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[B]], [[A]]
|
||
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[TMP1]], -1
|
||
|
|
; CHECK-NEXT: ret i32 [[XOR]]
|
||
|
|
;
|
||
|
|
%a = fptosi float %fa to i32
|
||
|
|
%b = fptosi float %fb to i32
|
||
|
|
%nota = xor i32 %a, -1
|
||
|
|
%notb = xor i32 %b, -1
|
||
|
|
%or1 = or i32 %nota, %notb
|
||
|
|
%or2 = or i32 %b, %a
|
||
|
|
%xor = xor i32 %or1, %or2
|
||
|
|
ret i32 %xor
|
||
|
|
}
|