https://github.com/preames approved this pull request.
LGTM w/requested change.
Another option would be to expand a section on joining discord somewhere, and
then scatter links to that in the docs instead of the invite link itself.
https://github.com/llvm/llvm-project/pull/126352
https://github.com/preames edited
https://github.com/llvm/llvm-project/pull/126352
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@@ -149,7 +149,7 @@ Open Clang Projects
If you hit a bug with Clang, it is very useful for us if you reduce the code
that demonstrates the problem down to something small. There are many ways to
do this; ask on https://discourse.llvm.org/c/clang";>Discourse,
-https://discord.co
@@ -3878,6 +3883,130 @@ static Align computeCommonAlignment(ArrayRef
VL) {
return CommonAlignment;
}
+/// Check if \p Order represents reverse order.
+static bool isReverseOrder(ArrayRef Order) {
+ unsigned Sz = Order.size();
+ return !Order.empty() && all_of(enumerate(Or
@@ -3930,30 +4065,68 @@ static LoadsState canVectorizeLoads(ArrayRef
VL, const Value *VL0,
std::optional Diff =
getPointersDiff(ScalarTy, Ptr0, ScalarTy, PtrN, DL, SE);
// Check that the sorted loads are consecutive.
- if (static_cast(*Diff) == VL.si
https://github.com/preames commented:
These comments are trying to be helpful in pointing out bits which might be
simplified or split off, but my track record with SLP reviews is not great.
Feel free to ignore any or all of these.
https://github.com/llvm/llvm-project/pull/80310
@@ -30,7 +30,7 @@ define void @test() {
; CHECK-SLP-THRESHOLD: bb:
; CHECK-SLP-THRESHOLD-NEXT:[[TMP0:%.*]] = insertelement <4 x ptr> poison,
ptr [[COND_IN_V]], i32 0
; CHECK-SLP-THRESHOLD-NEXT:[[TMP1:%.*]] = shufflevector <4 x ptr>
[[TMP0]], <4 x ptr> poison, <4
@@ -17,7 +17,7 @@ define i16 @test() {
; CHECK-NEXT:[[TMP4:%.*]] = call <2 x i16>
@llvm.masked.gather.v2i16.v2p0(<2 x ptr> [[TMP3]], i32 2, <2 x i1> , <2 x i16> poison)
; CHECK-NEXT:[[TMP5:%.*]] = extractelement <2 x i16> [[TMP4]], i32 0
; CHECK-NEXT:[[TMP6:%.*]] =
@@ -397,27 +241,12 @@ define void @test3([48 x float]* %p, float* noalias %s) {
; CHECK-NEXT: entry:
; CHECK-NEXT:[[ARRAYIDX:%.*]] = getelementptr inbounds [48 x float], ptr
[[P:%.*]], i64 0, i64 0
; CHECK-NEXT:[[ARRAYIDX2:%.*]] = getelementptr inbounds float, ptr
[[
@@ -3930,30 +4065,68 @@ static LoadsState canVectorizeLoads(ArrayRef
VL, const Value *VL0,
std::optional Diff =
getPointersDiff(ScalarTy, Ptr0, ScalarTy, PtrN, DL, SE);
// Check that the sorted loads are consecutive.
- if (static_cast(*Diff) == VL.si
https://github.com/preames edited
https://github.com/llvm/llvm-project/pull/80310
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@@ -7,7 +7,7 @@ define i32 @test(ptr noalias %p, ptr noalias %addr) {
; CHECK-NEXT: entry:
; CHECK-NEXT:[[TMP0:%.*]] = insertelement <8 x ptr> poison, ptr
[[ADDR:%.*]], i32 0
; CHECK-NEXT:[[TMP1:%.*]] = shufflevector <8 x ptr> [[TMP0]], <8 x ptr>
poison, <8 x i32> ze
preames wrote:
FYI - https://github.com/llvm/llvm-project/pull/80360 adds testing
infrastructure to exercise the TTI hooks.
https://github.com/llvm/llvm-project/pull/80310
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@@ -326,6 +326,50 @@ InstructionCost
RISCVTTIImpl::getShuffleCost(TTI::ShuffleKind Kind,
switch (Kind) {
default:
break;
+case TTI::SK_ExtractSubvector:
+ if (isa(SubTp)) {
+unsigned TpRegs = getRegUsageForType(Tp);
+unsigned NumElems =
+
@@ -326,6 +326,50 @@ InstructionCost
RISCVTTIImpl::getShuffleCost(TTI::ShuffleKind Kind,
switch (Kind) {
default:
break;
+case TTI::SK_ExtractSubvector:
+ if (isa(SubTp)) {
+unsigned TpRegs = getRegUsageForType(Tp);
+unsigned NumElems =
+
@@ -326,6 +326,50 @@ InstructionCost
RISCVTTIImpl::getShuffleCost(TTI::ShuffleKind Kind,
switch (Kind) {
default:
break;
+case TTI::SK_ExtractSubvector:
+ if (isa(SubTp)) {
+unsigned TpRegs = getRegUsageForType(Tp);
+unsigned NumElems =
+
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