a105877646
The idea behind this canonicalization is that it allows us to handle less patterns, because we know that some will be canonicalized away. This is indeed very useful to e.g. know that constants are always on the right. However, this is only useful if the canonicalization is actually reliable. This is the case for constants, but not for arguments: Moving these to the right makes it look like the "more complex" expression is guaranteed to be on the left, but this is not actually the case in practice. It fails as soon as you replace the argument with another instruction. The end result is that it looks like things correctly work in tests, while they actually don't. We use the "thwart complexity-based canonicalization" trick to handle this in tests, but it's often a challenge for new contributors to get this right, and based on the regressions this PR originally exposed, we clearly don't get this right in many cases. For this reason, I think that it's better to remove this complexity canonicalization. It will make it much easier to write tests for commuted cases and make sure that they are handled.
503 lines
17 KiB
LLVM
503 lines
17 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -passes=instcombine < %s | FileCheck %s
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define i1 @fcmp_ord_and_uno(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_uno(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UNO:%.*]] = fcmp uno half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UNO]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp ord half %x, 0.0
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%uno = fcmp uno half %x, %y
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%and = and i1 %ord, %uno
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ret i1 %and
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}
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define i1 @fcmp_ord_and_ueq(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_ueq(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp ord half %x, 0.0
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%ueq = fcmp ueq half %x, %y
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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define i1 @fcmp_ord_and_ugt(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_ugt(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UGT:%.*]] = fcmp ugt half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UGT]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp ord half %x, 0.0
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%ugt = fcmp ugt half %x, %y
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%and = and i1 %ord, %ugt
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ret i1 %and
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}
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define i1 @fcmp_ord_and_uge(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_uge(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UGE:%.*]] = fcmp uge half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UGE]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp ord half %x, 0.0
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%uge = fcmp uge half %x, %y
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%and = and i1 %ord, %uge
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ret i1 %and
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}
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define i1 @fcmp_ord_and_ult(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_ult(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[ULT:%.*]] = fcmp ult half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[ULT]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp ord half %x, 0.0
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%ult = fcmp ult half %x, %y
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%and = and i1 %ord, %ult
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ret i1 %and
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}
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define i1 @fcmp_ord_and_ule(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_ule(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[ULE:%.*]] = fcmp ule half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[ULE]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp ord half %x, 0.0
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%ule = fcmp ule half %x, %y
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%and = and i1 %ord, %ule
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ret i1 %and
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}
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define i1 @fcmp_ord_and_une(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_une(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UNE:%.*]] = fcmp une half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UNE]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp ord half %x, 0.0
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%une = fcmp une half %x, %y
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%and = and i1 %ord, %une
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ret i1 %and
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}
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define i1 @fcmp_ord_and_true(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_true(
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; CHECK-NEXT: [[UNE:%.*]] = fcmp une half [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[UNE]]
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;
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%ord = fcmp true half %x, 0.0
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%une = fcmp une half %x, %y
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%and = and i1 %ord, %une
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ret i1 %and
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}
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define <2 x i1> @fcmp_ord_and_ueq_vector(<2 x half> %x, <2 x half> %y) {
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; CHECK-LABEL: @fcmp_ord_and_ueq_vector(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord <2 x half> [[X:%.*]], zeroinitializer
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq <2 x half> [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and <2 x i1> [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret <2 x i1> [[AND]]
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;
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%ord = fcmp ord <2 x half> %x, zeroinitializer
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%ueq = fcmp ueq <2 x half> %x, %y
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%and = and <2 x i1> %ord, %ueq
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ret <2 x i1> %and
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}
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; Negative test
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define i1 @fcmp_ord_and_ueq_different_value0(half %x, half %y, half %z) {
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; CHECK-LABEL: @fcmp_ord_and_ueq_different_value0(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[Z:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp ord half %x, 0.0
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%ueq = fcmp ueq half %z, %y
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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; Negative test
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define i1 @fcmp_ord_and_ueq_different_value1(half %x, half %y, half %z) {
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; CHECK-LABEL: @fcmp_ord_and_ueq_different_value1(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[Y:%.*]], [[Z:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp ord half %x, 0.0
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%ueq = fcmp ueq half %y, %z
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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declare half @foo()
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define i1 @fcmp_ord_and_ueq_commute0() {
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; CHECK-LABEL: @fcmp_ord_and_ueq_commute0(
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; CHECK-NEXT: [[X:%.*]] = call half @foo()
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; CHECK-NEXT: [[Y:%.*]] = call half @foo()
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[X]], [[Y]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[UEQ]], [[ORD]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%x = call half @foo()
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%y = call half @foo()
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%ord = fcmp ord half %x, 0.0
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%ueq = fcmp ueq half %x, %y
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%and = and i1 %ueq, %ord
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ret i1 %and
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}
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define i1 @fcmp_ord_and_ueq_commute1() {
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; CHECK-LABEL: @fcmp_ord_and_ueq_commute1(
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; CHECK-NEXT: [[X:%.*]] = call half @foo()
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; CHECK-NEXT: [[Y:%.*]] = call half @foo()
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[X]], [[Y]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%x = call half @foo()
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%y = call half @foo()
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%ord = fcmp ord half %x, 0.0
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%ueq = fcmp ueq half %x, %y
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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define i1 @fcmp_oeq_x_x_and_ult(half %x, half %y) {
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; CHECK-LABEL: @fcmp_oeq_x_x_and_ult(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[ULT:%.*]] = fcmp ult half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[ULT]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp oeq half %x, %x ; noncanonical ordered
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%ult = fcmp ult half %x, %y
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%and = and i1 %ord, %ult
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ret i1 %and
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}
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define i1 @fcmp_ord_and_ueq_preserve_flags(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_ueq_preserve_flags(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp nsz ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp nsz ueq half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp nsz ord half %x, 0.0
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%ueq = fcmp nsz ueq half %x, %y
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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define i1 @fcmp_ord_and_ueq_preserve_subset_flags0(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_ueq_preserve_subset_flags0(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp nsz ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ninf nsz ueq half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp nsz ord half %x, 0.0
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%ueq = fcmp ninf nsz ueq half %x, %y
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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define i1 @fcmp_ord_and_ueq_preserve_subset_flags1(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_ueq_preserve_subset_flags1(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ninf nsz ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp nsz ueq half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp ninf nsz ord half %x, 0.0
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%ueq = fcmp nsz ueq half %x, %y
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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define i1 @fcmp_ord_and_ueq_flags_lhs(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_ueq_flags_lhs(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp nsz ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp nsz ord half %x, 0.0
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%ueq = fcmp ueq half %x, %y
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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define i1 @fcmp_ord_and_ueq_flags_rhs(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_ueq_flags_rhs(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp nsz ueq half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%ord = fcmp ord half %x, 0.0
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%ueq = fcmp nsz ueq half %x, %y
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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; Can ignore fabs and fneg
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define i1 @fcmp_ord_and_fabs_ueq(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_fabs_ueq(
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; CHECK-NEXT: [[FABS_X:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[FABS_X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%fabs.x = call half @llvm.fabs.f16(half %x)
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%ord = fcmp ord half %x, 0.0
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%ueq = fcmp ueq half %fabs.x, %y
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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define i1 @fcmp_ord_fabs_and_ueq(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_fabs_and_ueq(
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%fabs.x = call half @llvm.fabs.f16(half %x)
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%ord = fcmp ord half %fabs.x, 0.0
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%ueq = fcmp ueq half %x, %y
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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define i1 @fcmp_ord_and_fabs_ueq_commute0() {
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; CHECK-LABEL: @fcmp_ord_and_fabs_ueq_commute0(
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; CHECK-NEXT: [[X:%.*]] = call half @foo()
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; CHECK-NEXT: [[Y:%.*]] = call half @foo()
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; CHECK-NEXT: [[FABS_X:%.*]] = call half @llvm.fabs.f16(half [[X]])
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[Y]], [[FABS_X]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%x = call half @foo()
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%y = call half @foo()
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%fabs.x = call half @llvm.fabs.f16(half %x)
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%ord = fcmp ord half %x, 0.0
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%ueq = fcmp ueq half %y, %fabs.x
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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define i1 @fcmp_ord_and_fabs_ueq_commute1() {
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; CHECK-LABEL: @fcmp_ord_and_fabs_ueq_commute1(
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; CHECK-NEXT: [[X:%.*]] = call half @foo()
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; CHECK-NEXT: [[Y:%.*]] = call half @foo()
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; CHECK-NEXT: [[FABS_X:%.*]] = call half @llvm.fabs.f16(half [[X]])
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[Y]], [[FABS_X]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[UEQ]], [[ORD]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%x = call half @foo()
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%y = call half @foo()
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%fabs.x = call half @llvm.fabs.f16(half %x)
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%ord = fcmp ord half %x, 0.0
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%ueq = fcmp ueq half %y, %fabs.x
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%and = and i1 %ueq, %ord
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ret i1 %and
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}
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define <2 x i1> @fcmp_ord_and_fabs_ueq_vector(<2 x half> %x, <2 x half> %y) {
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; CHECK-LABEL: @fcmp_ord_and_fabs_ueq_vector(
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; CHECK-NEXT: [[FABS_X:%.*]] = call <2 x half> @llvm.fabs.v2f16(<2 x half> [[X:%.*]])
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord <2 x half> [[X]], zeroinitializer
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq <2 x half> [[FABS_X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and <2 x i1> [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret <2 x i1> [[AND]]
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;
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%fabs.x = call <2 x half> @llvm.fabs.v2f16(<2 x half> %x)
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%ord = fcmp ord <2 x half> %x, zeroinitializer
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%ueq = fcmp ueq <2 x half> %fabs.x, %y
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%and = and <2 x i1> %ord, %ueq
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ret <2 x i1> %and
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}
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define i1 @fcmp_ord_fabs_and_fabs_ueq(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_fabs_and_fabs_ueq(
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; CHECK-NEXT: [[FABS_X:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[FABS_X]], [[Y:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%fabs.x = call half @llvm.fabs.f16(half %x)
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%ord = fcmp ord half %fabs.x, 0.0
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%ueq = fcmp ueq half %fabs.x, %y
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%and = and i1 %ord, %ueq
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ret i1 %and
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}
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define i1 @fcmp_ord_and_fneg_ueq(half %x, half %y) {
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; CHECK-LABEL: @fcmp_ord_and_fneg_ueq(
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; CHECK-NEXT: [[FNEG_X:%.*]] = fneg half [[X:%.*]]
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; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
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; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[Y:%.*]], [[FNEG_X]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
|
|
; CHECK-NEXT: ret i1 [[AND]]
|
|
;
|
|
%fneg.x = fneg half %x
|
|
%ord = fcmp ord half %x, 0.0
|
|
%ueq = fcmp ueq half %fneg.x, %y
|
|
%and = and i1 %ord, %ueq
|
|
ret i1 %and
|
|
}
|
|
|
|
define i1 @fcmp_ord_fneg_and_ueq(half %x, half %y) {
|
|
; CHECK-LABEL: @fcmp_ord_fneg_and_ueq(
|
|
; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
|
|
; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[X]], [[Y:%.*]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
|
|
; CHECK-NEXT: ret i1 [[AND]]
|
|
;
|
|
%fneg.x = fneg half %x
|
|
%ord = fcmp ord half %fneg.x, 0.0
|
|
%ueq = fcmp ueq half %x, %y
|
|
%and = and i1 %ord, %ueq
|
|
ret i1 %and
|
|
}
|
|
|
|
define i1 @fcmp_ord_fneg_and_fneg_ueq(half %x, half %y) {
|
|
; CHECK-LABEL: @fcmp_ord_fneg_and_fneg_ueq(
|
|
; CHECK-NEXT: [[FNEG_X:%.*]] = fneg half [[X:%.*]]
|
|
; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
|
|
; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[Y:%.*]], [[FNEG_X]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
|
|
; CHECK-NEXT: ret i1 [[AND]]
|
|
;
|
|
%fneg.x = fneg half %x
|
|
%ord = fcmp ord half %fneg.x, 0.0
|
|
%ueq = fcmp ueq half %fneg.x, %y
|
|
%and = and i1 %ord, %ueq
|
|
ret i1 %and
|
|
}
|
|
|
|
define i1 @fcmp_ord_and_fneg_fabs_ueq(half %x, half %y) {
|
|
; CHECK-LABEL: @fcmp_ord_and_fneg_fabs_ueq(
|
|
; CHECK-NEXT: [[FABS_X:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
|
|
; CHECK-NEXT: [[FNEG_FABS_X:%.*]] = fneg half [[FABS_X]]
|
|
; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
|
|
; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[Y:%.*]], [[FNEG_FABS_X]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
|
|
; CHECK-NEXT: ret i1 [[AND]]
|
|
;
|
|
%fabs.x = call half @llvm.fabs.f16(half %x)
|
|
%fneg.fabs.x = fneg half %fabs.x
|
|
%ord = fcmp ord half %x, 0.0
|
|
%ueq = fcmp ueq half %fneg.fabs.x, %y
|
|
%and = and i1 %ord, %ueq
|
|
ret i1 %and
|
|
}
|
|
|
|
define i1 @fcmp_ord_and_copysign_ueq(half %x, half %y, half %z) {
|
|
; CHECK-LABEL: @fcmp_ord_and_copysign_ueq(
|
|
; CHECK-NEXT: [[COPYSIGN_X_Y:%.*]] = call half @llvm.copysign.f16(half [[X:%.*]], half [[Z:%.*]])
|
|
; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
|
|
; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[COPYSIGN_X_Y]], [[Y:%.*]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
|
|
; CHECK-NEXT: ret i1 [[AND]]
|
|
;
|
|
%copysign.x.y = call half @llvm.copysign.f16(half %x, half %z)
|
|
%ord = fcmp ord half %x, 0.0
|
|
%ueq = fcmp ueq half %copysign.x.y, %y
|
|
%and = and i1 %ord, %ueq
|
|
ret i1 %and
|
|
}
|
|
|
|
define i1 @fcmp_copysign_ord_and_ueq(half %x, half %y, half %z) {
|
|
; CHECK-LABEL: @fcmp_copysign_ord_and_ueq(
|
|
; CHECK-NEXT: [[COPYSIGN_X_Y:%.*]] = call half @llvm.copysign.f16(half [[X:%.*]], half [[Z:%.*]])
|
|
; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[COPYSIGN_X_Y]], 0xH0000
|
|
; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[X]], [[Y:%.*]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
|
|
; CHECK-NEXT: ret i1 [[AND]]
|
|
;
|
|
%copysign.x.y = call half @llvm.copysign.f16(half %x, half %z)
|
|
%ord = fcmp ord half %copysign.x.y, 0.0
|
|
%ueq = fcmp ueq half %x, %y
|
|
%and = and i1 %ord, %ueq
|
|
ret i1 %and
|
|
}
|
|
|
|
define i1 @fcmp_ord_and_copysign_ueq_commute(half %x, half %y, half %z) {
|
|
; CHECK-LABEL: @fcmp_ord_and_copysign_ueq_commute(
|
|
; CHECK-NEXT: [[COPYSIGN_X_Y:%.*]] = call half @llvm.copysign.f16(half [[X:%.*]], half [[Z:%.*]])
|
|
; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
|
|
; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[Y:%.*]], [[COPYSIGN_X_Y]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
|
|
; CHECK-NEXT: ret i1 [[AND]]
|
|
;
|
|
%copysign.x.y = call half @llvm.copysign.f16(half %x, half %z)
|
|
%ord = fcmp ord half %x, 0.0
|
|
%ueq = fcmp ueq half %y, %copysign.x.y
|
|
%and = and i1 %ord, %ueq
|
|
ret i1 %and
|
|
}
|
|
|
|
define i1 @fcmp_ord_and_copysign_fneg_ueq(half %x, half %y, half %z) {
|
|
; CHECK-LABEL: @fcmp_ord_and_copysign_fneg_ueq(
|
|
; CHECK-NEXT: [[COPYSIGN_X_Y:%.*]] = call half @llvm.copysign.f16(half [[X:%.*]], half [[Z:%.*]])
|
|
; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
|
|
; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[COPYSIGN_X_Y]], [[Y:%.*]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
|
|
; CHECK-NEXT: ret i1 [[AND]]
|
|
;
|
|
%x.fneg = fneg half %x
|
|
%copysign.x.y = call half @llvm.copysign.f16(half %x.fneg, half %z)
|
|
%ord = fcmp ord half %x, 0.0
|
|
%ueq = fcmp ueq half %copysign.x.y, %y
|
|
%and = and i1 %ord, %ueq
|
|
ret i1 %and
|
|
}
|
|
|
|
define i1 @fcmp_ord_and_fneg_copysign_ueq(half %x, half %y, half %z) {
|
|
; CHECK-LABEL: @fcmp_ord_and_fneg_copysign_ueq(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = fneg half [[Z:%.*]]
|
|
; CHECK-NEXT: [[FNEG_COPYSIGN:%.*]] = call half @llvm.copysign.f16(half [[X:%.*]], half [[TMP1]])
|
|
; CHECK-NEXT: [[ORD:%.*]] = fcmp ord half [[X]], 0xH0000
|
|
; CHECK-NEXT: [[UEQ:%.*]] = fcmp ueq half [[FNEG_COPYSIGN]], [[Y:%.*]]
|
|
; CHECK-NEXT: [[AND:%.*]] = and i1 [[ORD]], [[UEQ]]
|
|
; CHECK-NEXT: ret i1 [[AND]]
|
|
;
|
|
%copysign.x.y = call half @llvm.copysign.f16(half %x, half %z)
|
|
%fneg.copysign = fneg half %copysign.x.y
|
|
%ord = fcmp ord half %x, 0.0
|
|
%ueq = fcmp ueq half %fneg.copysign, %y
|
|
%and = and i1 %ord, %ueq
|
|
ret i1 %and
|
|
}
|
|
|
|
|
|
declare half @llvm.fabs.f16(half)
|
|
declare <2 x half> @llvm.fabs.v2f16(<2 x half>)
|
|
declare half @llvm.copysign.f16(half, half)
|
|
declare <2 x half> @llvm.copysign.v2f16(<2 x half>, <2 x half>)
|