https://github.com/hardikxk created
https://github.com/llvm/llvm-project/pull/220526
The following warning is generated because of a mismatch in the object types.
```bash
/home/xane/Documents/shallowllvm/llvm-project/clang/lib/Basic/Targets/AMDGPU.cpp:
In constructor ‘clang::targets::AMDGPUTargetInfo::AMDGPUTargetInfo(const
llvm::Triple&, const clang::TargetOptions&)’:
/home/xane/Documents/shallowllvm/llvm-project/clang/lib/Basic/Targets/AMDGPU.cpp:200:37:
warning: enumerated mismatch in conditional expression:
‘llvm::AMDGPU::ArchFeatureKind’ vs ‘llvm::AMDGPU::R600FeatureKind’
[-Wenum-compare]
200 | GPUFeatures(Triple.isAMDGCN() ? llvm::AMDGPU::FEATURE_NONE
| ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
201 | :
llvm::AMDGPU::getArchAttrR600(GPUKind)) {
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[1/166] Building CXX object
tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CodeGenPGO.cpp.o^C
```
The type of `GpuFeatures` and return value of `getArchAttrR600()` is ultimately
an `unsigned` int value. Static cast the return value of the method to
`unsigned` to resolve the warning without any functional or breaking changes.
>From aa98e176fbb5dfb02e916e52f4dc107288c349a8 Mon Sep 17 00:00:00 2001
From: Hardik Kumar <[email protected]>
Date: Wed, 2 Sep 2026 14:43:57 +0530
Subject: [PATCH] [clang][amdgpu] resolve type mismatch warning in conditional
comparison
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The following warning is generated because of a mismatch in the object types.
```bash
/home/xane/Documents/shallowllvm/llvm-project/clang/lib/Basic/Targets/AMDGPU.cpp:
In constructor ‘clang::targets::AMDGPUTargetInfo::AMDGPUTargetInfo(const
llvm::Triple&, const clang::TargetOptions&)’:
/home/xane/Documents/shallowllvm/llvm-project/clang/lib/Basic/Targets/AMDGPU.cpp:200:37:
warning: enumerated mismatch in conditional expression:
‘llvm::AMDGPU::ArchFeatureKind’ vs ‘llvm::AMDGPU::R600FeatureKind’
[-Wenum-compare]
200 | GPUFeatures(Triple.isAMDGCN() ? llvm::AMDGPU::FEATURE_NONE
| ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
201 | :
llvm::AMDGPU::getArchAttrR600(GPUKind)) {
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[1/166] Building CXX object
tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CodeGenPGO.cpp.o^C
```
The type of `GpuFeatures` and return value of `getArchAttrR600()` is
ultimately an `unsigned` int value. Static cast the return value of the
method to `unsigned` to resolve the warning without any functional
or breaking changes.
Signed-off-by: Hardik Kumar <[email protected]>
---
clang/lib/Basic/Targets/AMDGPU.cpp | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/clang/lib/Basic/Targets/AMDGPU.cpp
b/clang/lib/Basic/Targets/AMDGPU.cpp
index c9e3f6248f82d..c8e2a96f62f9b 100644
--- a/clang/lib/Basic/Targets/AMDGPU.cpp
+++ b/clang/lib/Basic/Targets/AMDGPU.cpp
@@ -197,8 +197,10 @@ AMDGPUTargetInfo::AMDGPUTargetInfo(const llvm::Triple
&Triple,
Triple.getSubArch())
:
llvm::AMDGPU::parseArchAMDGCN(Opts.CPU))
: llvm::AMDGPU::parseArchR600(Opts.CPU)),
- GPUFeatures(Triple.isAMDGCN() ? llvm::AMDGPU::FEATURE_NONE
- : llvm::AMDGPU::getArchAttrR600(GPUKind)) {
+ GPUFeatures(
+ Triple.isAMDGCN()
+ ? llvm::AMDGPU::FEATURE_NONE
+ : static_cast<unsigned>(llvm::AMDGPU::getArchAttrR600(GPUKind)))
{
resetDataLayout();
AddrSpaceMap = &AMDGPUAddrSpaceMap;
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