[llvm] AMDGPU: Use less surprising form of ConstantFP::get (PR #139248)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-amdgpu

Author: Matt Arsenault (arsenm)

<details>
<summary>Changes</summary>

Avoid deducing the IR type from the APFloat type

---
Full diff: https://github.com/llvm/llvm-project/pull/139248.diff


1 Files Affected:

- (modified) llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp (+2-2) 


``````````diff
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp b/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
index 8679a7cd0f88d..e76396f6ffbb0 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
@@ -906,8 +906,8 @@ GCNTTIImpl::instCombineIntrinsic(InstCombiner &IC, IntrinsicInst &II) const {
         if (const ConstantFP *C2 = dyn_cast<ConstantFP>(Src2)) {
           APFloat Result = fmed3AMDGCN(C0->getValueAPF(), C1->getValueAPF(),
                                        C2->getValueAPF());
-          return IC.replaceInstUsesWith(
-              II, ConstantFP::get(IC.Builder.getContext(), Result));
+          return IC.replaceInstUsesWith(II,
+                                        ConstantFP::get(II.getType(), Result));
         }
       }
     }

``````````

</details>


https://github.com/llvm/llvm-project/pull/139248