[llvm] [AMDGPU][GlobalIsel] Add register bank legalization rules for fptoi and itofp (PR #176300)

via llvm-commits llvm-commits at lists.llvm.org
Thu Jan 15 18:31:22 PST 2026


github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


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<details>
<summary>
You can test this locally with the following command:
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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Target/AMDGPU/AMDGPURegBankLegalizeRules.cpp --diff_from_common_commit
``````````

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The reproduction instructions above might return results for more than one PR
in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
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<details>
<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/AMDGPU/AMDGPURegBankLegalizeRules.cpp b/llvm/lib/Target/AMDGPU/AMDGPURegBankLegalizeRules.cpp
index f659acfc5..33f347a88 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPURegBankLegalizeRules.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPURegBankLegalizeRules.cpp
@@ -1079,12 +1079,12 @@ RegBankLegalizeRules::RegBankLegalizeRules(const GCNSubtarget &_ST,
       .Any({{UniV2S32}, {{UniInVgprV2S32}, {VgprV2S32}}})
       .Any({{DivV2S32}, {{VgprV2S32}, {VgprV2S32}}});
 
-      addRulesForGOpcs({G_FPTOUI, G_FPTOSI})
+  addRulesForGOpcs({G_FPTOUI, G_FPTOSI})
       .Any({{UniS16, S16}, {{UniInVgprS16}, {Vgpr16}}})
       .Any({{DivS16, S16}, {{Vgpr16}, {Vgpr16}}})
       .Any({{UniS16, S32}, {{UniInVgprS16}, {Vgpr32}}})
       .Any({{DivS16, S32}, {{Vgpr16}, {Vgpr32}}})
-      .Any({{UniS16, S64}, {{UniInVgprS16}, {Vgpr64}}}) 
+      .Any({{UniS16, S64}, {{UniInVgprS16}, {Vgpr64}}})
       .Any({{DivS16, S64}, {{Vgpr16}, {Vgpr64}}})
       .Any({{UniS32, S16}, {{Sgpr32}, {Sgpr16}}}, hasSALUFloat)
       .Any({{UniS32, S16}, {{UniInVgprS32}, {Vgpr16}}}, !hasSALUFloat)
@@ -1097,7 +1097,7 @@ RegBankLegalizeRules::RegBankLegalizeRules(const GCNSubtarget &_ST,
       .Any({{UniS64, S16}, {{UniInVgprS64}, {Vgpr16}}})
       .Any({{DivS64, S16}, {{Vgpr64}, {Vgpr16}}});
 
-      addRulesForGOpcs({G_UITOFP, G_SITOFP})
+  addRulesForGOpcs({G_UITOFP, G_SITOFP})
       .Any({{UniS16, S16}, {{UniInVgprS16}, {Vgpr16}}})
       .Any({{DivS16, S16}, {{Vgpr16}, {Vgpr16}}})
       .Any({{UniS16, S32}, {{Sgpr16}, {Sgpr32}}}, hasSALUFloat)

``````````

</details>


https://github.com/llvm/llvm-project/pull/176300


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