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[RFC,v1,18/43] helper-to-tcg: PrepareForOptPass, Remove noinline attribute

Message ID 20241121014947.18666-19-anjo@rev.ng (mailing list archive)
State New
Headers show
Series Introduce helper-to-tcg | expand

Commit Message

Anton Johansson Nov. 21, 2024, 1:49 a.m. UTC 
When producing LLVM IR using clang -O0, a noinline attribute is added.
Remove this attribute to not inhibit future optimization.

Signed-off-by: Anton Johansson <anjo@rev.ng>
---
 .../passes/PrepareForOptPass/PrepareForOptPass.cpp         | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/subprojects/helper-to-tcg/passes/PrepareForOptPass/PrepareForOptPass.cpp b/subprojects/helper-to-tcg/passes/PrepareForOptPass/PrepareForOptPass.cpp
index b357debb5d..cfd1c23c24 100644
--- a/subprojects/helper-to-tcg/passes/PrepareForOptPass/PrepareForOptPass.cpp
+++ b/subprojects/helper-to-tcg/passes/PrepareForOptPass/PrepareForOptPass.cpp
@@ -25,6 +25,7 @@ 
 #include <llvm/IR/Instructions.h>
 #include <llvm/IR/Intrinsics.h>
 #include <llvm/IR/Module.h>
+#include <llvm/Transforms/Utils/Local.h>
 
 #include <queue>
 #include <set>
@@ -249,5 +250,11 @@  PreservedAnalyses PrepareForOptPass::run(Module &M, ModuleAnalysisManager &MAM)
     collectAnnotations(M, ResultAnnotations);
     cullUnusedFunctions(M, ResultAnnotations, TranslateAllHelpers);
     replaceRetaddrWithUndef(M);
+    // Remove noinline function attributes automatically added by -O0
+    for (Function &F : M) {
+        if (F.hasFnAttribute(Attribute::AttrKind::NoInline)) {
+            F.removeFnAttr(Attribute::AttrKind::NoInline);
+        }
+    }
     return PreservedAnalyses::none();
 }