aa5717362e
to libclang-cpp.so similar to libLLVM.so. This is required when multiple versions of the library are loaded into the same process. (boo#1219405, boo#1221183, boo#1233220) OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/llvm13?expand=0&rev=55
42 lines
1.8 KiB
Diff
42 lines
1.8 KiB
Diff
From 54b909de682bfa4e3389b680b0916ab18c99952a Mon Sep 17 00:00:00 2001
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From: Amanieu d'Antras <amanieu@gmail.com>
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Date: Fri, 25 Feb 2022 22:06:47 +0000
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Subject: [PATCH] [Mangler] Mangle aliases to fastcall/vectorcall functions
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correctly
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These aliases are produced by MergeFunctions and need to be mangled according to the calling convention of the function they are pointing to instead of defaulting to the C calling convention.
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Reviewed By: rnk
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Differential Revision: https://reviews.llvm.org/D120382
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---
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llvm/lib/IR/Mangler.cpp | 2 +-
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llvm/test/CodeGen/X86/fastcall-correct-mangling.ll | 4 ++++
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2 files changed, 5 insertions(+), 1 deletion(-)
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diff --git a/llvm/lib/IR/Mangler.cpp b/llvm/lib/IR/Mangler.cpp
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index 2399ea27ee9d4..b8e3e40e4c1d5 100644
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--- a/llvm/lib/IR/Mangler.cpp
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+++ b/llvm/lib/IR/Mangler.cpp
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@@ -144,7 +144,7 @@ void Mangler::getNameWithPrefix(raw_ostream &OS, const GlobalValue *GV,
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// Mangle functions with Microsoft calling conventions specially. Only do
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// this mangling for x86_64 vectorcall and 32-bit x86.
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- const Function *MSFunc = dyn_cast<Function>(GV);
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+ const Function *MSFunc = dyn_cast_or_null<Function>(GV->getBaseObject());
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// Don't add byte count suffixes when '\01' or '?' are in the first
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// character.
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diff --git a/llvm/test/CodeGen/X86/fastcall-correct-mangling.ll b/llvm/test/CodeGen/X86/fastcall-correct-mangling.ll
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index 00dc44e75e8f5..dd8ce0f0ef505 100644
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--- a/llvm/test/CodeGen/X86/fastcall-correct-mangling.ll
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+++ b/llvm/test/CodeGen/X86/fastcall-correct-mangling.ll
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@@ -31,3 +31,7 @@ define private x86_fastcallcc void @dontCrash() {
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; CHECK64-LABEL: {{^}}.LdontCrash:
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ret void
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}
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+
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+@alias = alias void(i64, i8, i8, i16), void(i64, i8, i8, i16)* @func
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+; CHECK32-LABEL: {{^}}.set @alias@20, @func@20
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+; CHECK64-LABEL: {{^}}.set alias, func
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