https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/156075
>From cfaf08898c046baaa41cb1cbe75ed9682da8bc1f Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Fri, 29 Aug 2025 13:40:55 -0400
Subject: [PATCH 1/2] [HLSL] Add copy assignment and construtor to resource
type
https://github.com/s-perron created
https://github.com/llvm/llvm-project/pull/156075
The wrapper used to hold the handle for resource type has just the
default copy constructor and assignment operator. This causes clang to
insert memcpys when it does an assignment of a resource type. The
memcpy
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https://github.com/llvm/llvm-project/pull/155664
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>From 95b0e22f32c62e973749d25286079515ba94e6ab Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Tue, 26 Aug 2025 13:12:42 -0400
Subject: [PATCH 1/2] [HLSL][SPIRV] Add -fhlsl-spv-use-unknown-image-format
opti
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/155664
>From 95b0e22f32c62e973749d25286079515ba94e6ab Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Tue, 26 Aug 2025 13:12:42 -0400
Subject: [PATCH] [HLSL][SPIRV] Add -fhlsl-spv-use-unknown-image-format option
T
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s-perron wrote:
This test is specifically looking for the bit you are removing to make sure
that the correct capabilities are emitted. In this case, we expect the
`StorageImageArrayNonUniformIndexing` to be emitted. This test should probably
be XFAIL until th
https://github.com/s-perron commented:
You will have to update the spir-v backend. We use that bit determine which
capabilities are required. See
https://github.com/llvm/llvm-project/blob/5d4aa87ca5176a54b8395141df565255e3fde9ed/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp#L4279
I would
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@@ -190,6 +192,71 @@ static void createResourceCtorArgs(CodeGenModule &CGM,
CXXConstructorDecl *CD,
Args.add(RValue::get(NameStr), AST.getPointerType(AST.CharTy.withConst()));
}
+// Initializes local resource array variable. For multi-dimensional arrays it
+// calls itself
https://github.com/s-perron approved this pull request.
https://github.com/llvm/llvm-project/pull/154248
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>From 900c99b8b3f317adcb8d897dbdc5f90fb91b4ddf Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Thu, 31 Jul 2025 12:16:43 -0400
Subject: [PATCH 01/12] [SPIRV][HLSL] Add DXC compatibility option for
extension
https://github.com/s-perron auto_merge_enabled
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>From 900c99b8b3f317adcb8d897dbdc5f90fb91b4ddf Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Thu, 31 Jul 2025 12:16:43 -0400
Subject: [PATCH 01/11] [SPIRV][HLSL] Add DXC compatibility option for
extension
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/151554
>From 900c99b8b3f317adcb8d897dbdc5f90fb91b4ddf Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Thu, 31 Jul 2025 12:16:43 -0400
Subject: [PATCH 01/10] [SPIRV][HLSL] Add DXC compatibility option for
extension
@@ -118,6 +118,48 @@ static void fixSeparateAttrArgAndNumber(StringRef ArgStr,
SourceLocation ArgLoc,
Slot = new (Ctx) IdentifierLoc(ArgLoc, PP.getIdentifierInfo(FixedArg));
}
+Parser::ParsedSemantic Parser::ParseHLSLSemantic() {
+ assert(Tok.is(tok::identifier) && "Not a
@@ -118,6 +118,48 @@ static void fixSeparateAttrArgAndNumber(StringRef ArgStr,
SourceLocation ArgLoc,
Slot = new (Ctx) IdentifierLoc(ArgLoc, PP.getIdentifierInfo(FixedArg));
}
+Parser::ParsedSemantic Parser::ParseHLSLSemantic() {
+ assert(Tok.is(tok::identifier) && "Not a
@@ -838,8 +854,6 @@ void SemaHLSL::CheckSemanticAnnotation(
DiagnoseAttrStageMismatch(AnnotationAttr, ST, {llvm::Triple::Compute});
break;
case attr::HLSLSV_Position:
-// TODO(#143523): allow use on other shader types & output once the overall
-// semantic log
https://github.com/s-perron commented:
My only concern is that the parser does not allow digits in the middle of the
semantic name. I believe that is possible for user semantics. It works for DXC.
Otherwise LGTM.
https://github.com/llvm/llvm-project/pull/152537
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@@ -118,6 +118,48 @@ static void fixSeparateAttrArgAndNumber(StringRef ArgStr,
SourceLocation ArgLoc,
Slot = new (Ctx) IdentifierLoc(ArgLoc, PP.getIdentifierInfo(FixedArg));
}
+Parser::ParsedSemantic Parser::ParseHLSLSemantic() {
+ assert(Tok.is(tok::identifier) && "Not a
@@ -118,6 +118,48 @@ static void fixSeparateAttrArgAndNumber(StringRef ArgStr,
SourceLocation ArgLoc,
Slot = new (Ctx) IdentifierLoc(ArgLoc, PP.getIdentifierInfo(FixedArg));
}
+Parser::ParsedSemantic Parser::ParseHLSLSemantic() {
+ assert(Tok.is(tok::identifier) && "Not a
s-perron wrote:
Should this have a case where just the space is specified?
```
RWBuffer E[15] : register(space2);
```
https://github.com/llvm/llvm-project/pull/152454
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https://github.com/s-perron commented:
LGTM, just a suggestion for another test.
https://github.com/llvm/llvm-project/pull/152454
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@@ -42,5 +44,15 @@ struct S {
};
RWStructuredBuffer T3S0 : register(u3);
+// Resource array elements are initialized on access; make sure there is not
call
+// to initialize RWBuffer.
s-perron wrote:
```suggestion
// Resource array elements are initialized o
https://github.com/s-perron closed
https://github.com/llvm/llvm-project/pull/150957
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s-perron wrote:
I'll see what I can do. I'm on vacation right now. I need to make the change
you suggested
https://github.com/llvm/llvm-project/pull/152209
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https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/151554
>From 900c99b8b3f317adcb8d897dbdc5f90fb91b4ddf Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Thu, 31 Jul 2025 12:16:43 -0400
Subject: [PATCH 1/8] [SPIRV][HLSL] Add DXC compatibility option for extension
T
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/151554
>From 900c99b8b3f317adcb8d897dbdc5f90fb91b4ddf Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Thu, 31 Jul 2025 12:16:43 -0400
Subject: [PATCH 1/7] [SPIRV][HLSL] Add DXC compatibility option for extension
T
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/151554
>From 900c99b8b3f317adcb8d897dbdc5f90fb91b4ddf Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Thu, 31 Jul 2025 12:16:43 -0400
Subject: [PATCH 1/6] [SPIRV][HLSL] Add DXC compatibility option for extension
T
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/151554
>From 900c99b8b3f317adcb8d897dbdc5f90fb91b4ddf Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Thu, 31 Jul 2025 12:16:43 -0400
Subject: [PATCH 1/5] [SPIRV][HLSL] Add DXC compatibility option for extension
T
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/151554
>From 900c99b8b3f317adcb8d897dbdc5f90fb91b4ddf Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Thu, 31 Jul 2025 12:16:43 -0400
Subject: [PATCH 1/4] [SPIRV][HLSL] Add DXC compatibility option for extension
T
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/151554
>From 900c99b8b3f317adcb8d897dbdc5f90fb91b4ddf Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Thu, 31 Jul 2025 12:16:43 -0400
Subject: [PATCH 1/3] [SPIRV][HLSL] Add DXC compatibility option for extension
T
https://github.com/s-perron edited
https://github.com/llvm/llvm-project/pull/151554
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>From 900c99b8b3f317adcb8d897dbdc5f90fb91b4ddf Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Thu, 31 Jul 2025 12:16:43 -0400
Subject: [PATCH 1/2] [SPIRV][HLSL] Add DXC compatibility option for extension
T
@@ -4894,6 +4894,14 @@ def HLSLSV_GroupIndex: HLSLAnnotationAttr {
let Documentation = [HLSLSV_GroupIndexDocs];
}
+def HLSLVkBinding : InheritableAttr {
+ let Spellings = [CXX11<"vk", "binding">];
+ let Subjects = SubjectList<[HLSLBufferObj, ExternalGlobalVar], ErrorDiag>;
https://github.com/s-perron created
https://github.com/llvm/llvm-project/pull/151554
The default behaviour in DXC is to allow all extesions the compiler
knows about. We did the same in clang: all extensions that clang knows
about. However, this causes the shader to use different extensions
becau
https://github.com/s-perron created
https://github.com/llvm/llvm-project/pull/150957
The vk::binding attribute allows users to explicitly set the set and
binding for a resource in SPIR-V without chaning the "register"
attribute, which will be used when targeting DXIL.
Fixes https://github.com/l
https://github.com/s-perron approved this pull request.
https://github.com/llvm/llvm-project/pull/147806
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s-perron wrote:
The failing spir-v test is caused by an update to spir-val
(https://github.com/KhronosGroup/SPIRV-Tools/pull/6184), and is unrelated to
this change.
https://github.com/llvm/llvm-project/pull/144774
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https://github.com/llvm/llvm-project/pull/144774
>From 7d3d8bb30863dd860183f7b9635aa34b72a9c3ae Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Wed, 18 Jun 2025 09:19:45 -0400
Subject: [PATCH 1/5] [HLSL][SPRIV] Handle sign RWBuffer correctly
MIME-Version:
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/144774
>From 7d3d8bb30863dd860183f7b9635aa34b72a9c3ae Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Wed, 18 Jun 2025 09:19:45 -0400
Subject: [PATCH 1/4] [HLSL][SPRIV] Handle sign RWBuffer correctly
MIME-Version:
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/144774
>From 7d3d8bb30863dd860183f7b9635aa34b72a9c3ae Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Wed, 18 Jun 2025 09:19:45 -0400
Subject: [PATCH 1/4] [HLSL][SPRIV] Handle sign RWBuffer correctly
MIME-Version:
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/144774
>From 7d3d8bb30863dd860183f7b9635aa34b72a9c3ae Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Wed, 18 Jun 2025 09:19:45 -0400
Subject: [PATCH 1/3] [HLSL][SPRIV] Handle sign RWBuffer correctly
MIME-Version:
https://github.com/s-perron closed
https://github.com/llvm/llvm-project/pull/146365
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s-perron wrote:
The test failures are unrelated to this change.
https://github.com/llvm/llvm-project/pull/146365
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@@ -4855,6 +4857,17 @@ LinkageInfo
LinkageComputer::computeTypeLinkageInfo(const Type *T) {
return computeTypeLinkageInfo(cast(T)
->getContainedType()
->getCanonicalTypeInternal());
+ case Type::H
https://github.com/s-perron created
https://github.com/llvm/llvm-project/pull/146365
In a case statement for Type::HLSLInlineSpirv, the first statment
returns, and the remaining statement are never executed. This removes
the dead code.
https://github.com/llvm/llvm-project/pull/134034/files/7d8e
https://github.com/s-perron closed
https://github.com/llvm/llvm-project/pull/145536
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>From af0773cd9677d90d2fe2466fa113d70983fc2c32 Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Tue, 24 Jun 2025 11:41:12 -0400
Subject: [PATCH 1/2] [HLSL][SPIRV] Add option to add all KHR extensions
In DXC,
https://github.com/s-perron closed
https://github.com/llvm/llvm-project/pull/145577
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@@ -4855,6 +4857,17 @@ LinkageInfo
LinkageComputer::computeTypeLinkageInfo(const Type *T) {
return computeTypeLinkageInfo(cast(T)
->getContainedType()
->getCanonicalTypeInternal());
+ case Type::H
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/144774
>From 7d3d8bb30863dd860183f7b9635aa34b72a9c3ae Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Wed, 18 Jun 2025 09:19:45 -0400
Subject: [PATCH 1/3] [HLSL][SPRIV] Handle sign RWBuffer correctly
MIME-Version:
s-perron wrote:
@michalpaszkowski The SPIR-V backend meeting was canceled, so we won't be able
to talk about this there. Do you have any feedback?
https://github.com/llvm/llvm-project/pull/144774
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https://github.com/s-perron created
https://github.com/llvm/llvm-project/pull/145577
The testing only tried `unsigned int` and not `uint`. We want to
correctly handle these surgared types as specialization constants.
>From 2bed922b3bd084fa43c8dc1843fb5bf67731e5ab Mon Sep 17 00:00:00 2001
From:
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/145577
>From 44cb96a30dc3b2b28449661a52ac5a73c63e2139 Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Tue, 24 Jun 2025 15:44:10 -0400
Subject: [PATCH] [HLSL][SPIRV] Handle `uint` type for spec constant
The testing
https://github.com/s-perron created
https://github.com/llvm/llvm-project/pull/145536
In DXC, there is an option to enable all KHR extension. This is added by
passing the KHR option to the SPIR-V backend, which will enable all of
the appropriate extensions.
Part of https://github.com/llvm/llvm-p
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/145327
>From 43f9f0e69c121c25f0519340f2aaa236f9820cba Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Thu, 19 Jun 2025 14:27:46 -0400
Subject: [PATCH] [HLSL] Add option for VK layouts
We add the options to the dri
https://github.com/s-perron approved this pull request.
https://github.com/llvm/llvm-project/pull/145334
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https://github.com/s-perron created
https://github.com/llvm/llvm-project/pull/145327
We add the options to the driver, so that the one option that is being
implemented at this time can be used. Issue an error for the other
options.
When we start to implement the other options, we will have to f
https://github.com/s-perron closed
https://github.com/llvm/llvm-project/pull/145063
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https://github.com/s-perron approved this pull request.
https://github.com/llvm/llvm-project/pull/144929
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https://github.com/s-perron created
https://github.com/llvm/llvm-project/pull/145063
- **[HLSL][SPIRV] Allow large z value in numthreads**
- **Implement DXC layout cli options.**
- **[HLSL] Add option for VK layouts**
>From 0b809d5a51a76ef76a68574b8dc447de10d4654a Mon Sep 17 00:00:00 2001
From
s-perron wrote:
@michalpaszkowski Any problems with me creating the new parallel type
`spirv.SignedImage`?
https://github.com/llvm/llvm-project/pull/144774
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@@ -1033,12 +1033,15 @@ void SemaHLSL::handleRootSignatureAttr(Decl *D, const
ParsedAttr &AL) {
void SemaHLSL::handleNumThreadsAttr(Decl *D, const ParsedAttr &AL) {
llvm::VersionTuple SMVersion =
getASTContext().getTargetInfo().getTriple().getOSVersion();
+ bool IsDXI
https://github.com/s-perron created
https://github.com/llvm/llvm-project/pull/144934
The current validation checks for numthreads assume that the target is
DXIL so the version checks inadvertently issue error when targeting
SPIR-V.
>From 0b809d5a51a76ef76a68574b8dc447de10d4654a Mon Sep 17 00:0
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/144774
>From 7d3d8bb30863dd860183f7b9635aa34b72a9c3ae Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Wed, 18 Jun 2025 09:19:45 -0400
Subject: [PATCH 1/3] [HLSL][SPRIV] Handle sign RWBuffer correctly
MIME-Version:
https://github.com/s-perron edited
https://github.com/llvm/llvm-project/pull/144774
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@@ -346,8 +346,9 @@ bool sampledTypeIsSignedInteger(const llvm::Type
*HandleType) {
if (TET->getTargetExtName() == "spirv.Image") {
return false;
}
- return TET->getTypeParameter(0)->isIntegerTy();
-}
+ assert(TET->getTargetExtName() == "spirv.SignedImage") {
+re
https://github.com/s-perron edited
https://github.com/llvm/llvm-project/pull/144902
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https://github.com/llvm/llvm-project/pull/144902
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https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/144774
>From 7d3d8bb30863dd860183f7b9635aa34b72a9c3ae Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Wed, 18 Jun 2025 09:19:45 -0400
Subject: [PATCH 1/2] [HLSL][SPRIV] Handle sign RWBuffer correctly
MIME-Version:
@@ -341,6 +341,13 @@ class SPIRVInstructionSelector : public
InstructionSelector {
GIntrinsic &HandleDef, MachineInstr &Pos)
const;
};
+bool sampledTypeIsSignedInteger(const llvm::Type *HandleType) {
+ const TargetExtType *TET = cast(HandleTy
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/144774
>From 7d3d8bb30863dd860183f7b9635aa34b72a9c3ae Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Wed, 18 Jun 2025 09:19:45 -0400
Subject: [PATCH] [HLSL][SPRIV] Handle sign RWBuffer correctly
MIME-Version: 1.0
https://github.com/s-perron closed
https://github.com/llvm/llvm-project/pull/144812
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https://github.com/s-perron created
https://github.com/llvm/llvm-project/pull/144812
Reverts llvm/llvm-project#143544
>From 9d775256000726929f826ec164aa514d4a6e2288 Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Wed, 18 Jun 2025 19:30:17 -0400
Subject: [PATCH] Revert "[HLSL][SPIRV] Add vk:
s-perron wrote:
https://lab.llvm.org/buildbot/#/builders/24/builds/9606
https://github.com/llvm/llvm-project/pull/143544
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https://github.com/s-perron created
https://github.com/llvm/llvm-project/pull/144774
- **Add sign extend image operand.**
- **[HLSL][SPRIV] Handle sign RWBuffer correctly**
>From 488fb5961105305e50e3d787f286354754a73fe9 Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Wed, 18 Jun 2025 09:19
https://github.com/s-perron approved this pull request.
https://github.com/llvm/llvm-project/pull/144701
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@@ -1661,6 +1661,11 @@ void
CodeGenModule::setGlobalVisibility(llvm::GlobalValue *GV,
return;
}
+ if (Context.getLangOpts().HLSL && !D->isInExportDeclContext()) {
+GV->setVisibility(llvm::GlobalValue::HiddenVisibility);
s-perron wrote:
I'll look i
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/143544
>From 954a86f3c8da88c4ac276231a40cd88e6f628253 Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Fri, 30 May 2025 12:32:21 -0400
Subject: [PATCH 1/7] [HLSL][SPIRV] Add vk::constant_id attribute.
The vk::const
s-perron wrote:
Broken builds fixed by #144116
https://github.com/llvm/llvm-project/pull/143412
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https://github.com/s-perron closed
https://github.com/llvm/llvm-project/pull/134260
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s-perron wrote:
In discussions with the teams implementing HLSL, we changed the design for the
`export` keyword in HLSL.
See
https://github.com/llvm/wg-hlsl/blob/02098f6d85af1534c296c71790a24df55bd40374/proposals/0026-symbol-visibility.md
https://github.com/llvm/llvm-project/pull/134260
_
https://github.com/s-perron closed
https://github.com/llvm/llvm-project/pull/143412
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https://github.com/s-perron ready_for_review
https://github.com/llvm/llvm-project/pull/140292
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@@ -213,7 +213,8 @@ getScopeFromNormalizedScopeName(StringRef ScopeName) {
.Case("vk", AttributeCommonInfo::Scope::VK)
.Case("msvc", AttributeCommonInfo::Scope::MSVC)
.Case("omp", AttributeCommonInfo::Scope::OMP)
- .Case("riscv", AttributeCommonInfo::Scop
@@ -774,6 +775,77 @@ Value *CodeGenFunction::EmitHLSLBuiltinExpr(unsigned
BuiltinID,
return EmitRuntimeCall(
Intrinsic::getOrInsertDeclaration(&CGM.getModule(), ID));
}
+ case Builtin::BI__builtin_get_spirv_spec_constant_bool:
+ case Builtin::BI__builtin_get_sp
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/143544
>From 954a86f3c8da88c4ac276231a40cd88e6f628253 Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Fri, 30 May 2025 12:32:21 -0400
Subject: [PATCH 1/3] [HLSL][SPIRV] Add vk::constant_id attribute.
The vk::const
@@ -213,7 +213,8 @@ getScopeFromNormalizedScopeName(StringRef ScopeName) {
.Case("vk", AttributeCommonInfo::Scope::VK)
.Case("msvc", AttributeCommonInfo::Scope::MSVC)
.Case("omp", AttributeCommonInfo::Scope::OMP)
- .Case("riscv", AttributeCommonInfo::Scop
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/143412
>From fadeeac5a79cbae0edffbabbe383d7451c254afb Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Mon, 9 Jun 2025 12:53:06 -0400
Subject: [PATCH 1/2] [HLSL][SPIRV] Use resource names
The SPIR-V backend does no
@@ -243,7 +243,7 @@ CGHLSLRuntime::getCreateHandleFromBindingIntrinsic() {
case llvm::Triple::dxil:
return std::pair(llvm::Intrinsic::dx_resource_handlefrombinding, true);
case llvm::Triple::spirv:
-return std::pair(llvm::Intrinsic::spv_resource_handlefrombinding, f
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/143384
>From ee4c25c47d58ba8707d8a36934186bce3c9fde4f Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Mon, 9 Jun 2025 10:21:47 -0400
Subject: [PATCH 1/2] [HLSL][Driver] Make vk1.3 the default.
The HLSL driver curr
https://github.com/s-perron updated
https://github.com/llvm/llvm-project/pull/143384
>From ee4c25c47d58ba8707d8a36934186bce3c9fde4f Mon Sep 17 00:00:00 2001
From: Steven Perron
Date: Mon, 9 Jun 2025 10:21:47 -0400
Subject: [PATCH 1/2] [HLSL][Driver] Make vk1.3 the default.
The HLSL driver curr
https://github.com/s-perron approved this pull request.
https://github.com/llvm/llvm-project/pull/143519
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