Skip to content

[SPIRV] Fix constant value in function #7415

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
s-perron merged 1 commit into from
May 3, 2025
Merged

[SPIRV] Fix constant value in function #7415

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 7 additions & 1 deletion tools/clang/lib/SPIRV/EmitVisitor.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2000,7 +2000,13 @@ bool EmitVisitor::visit(SpirvIntrinsicInstruction *inst) {
}
}

finalizeInstruction(&mainBinary);
auto opcode = static_cast<spv::Op>(inst->getInstruction());
if ((opcode == spv::Op::OpSpecConstant || opcode == spv::Op::OpConstant) &&
!inst->getInstructionSet()) {
finalizeInstruction(&typeConstantBinary);
} else {
finalizeInstruction(&mainBinary);
}
return true;
}

Expand Down
13 changes: 13 additions & 0 deletions tools/clang/test/CodeGenSPIRV/spv.intrinsicConstantValue.hlsl
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,13 @@
// RUN: %dxc -Od -T cs_6_8 -spirv -fcgl %s | FileCheck %s

// CHECK: %spirvIntrinsicType = OpTypeInt 8 0
using uint8_t [[vk::ext_capability(/* Int8 */ 39)]] =
vk::SpirvType</* OpTypeInt */ 21, 8, 8, vk::Literal<vk::integral_constant<uint, 8> >,
vk::Literal<vk::integral_constant<bool, false> > >;

[[vk::ext_instruction(/* OpConstant */ 43)]] uint8_t mkconsant([[vk::ext_literal]] int v);

// CHECK: OpConstant %spirvIntrinsicType 42
static const uint8_t K = mkconsant(42);

[numthreads(1, 1, 1)] void main() {}