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From 1b9fbc81ff15f6ad5a0e7f29c486c6edd0bce94c Mon Sep 17 00:00:00 2001
From: Mike Hommey <mh@glandium.org>
Date: Thu, 26 Jan 2023 21:28:09 +0100
Subject: [PATCH] [extract_symbols.py] Filter out more symbols for MSVC
This strips out about 5k symbols.
Fixes https://github.com/llvm/llvm-project/issues/60109
Reviewed By: john.brawn
Differential Revision: https://reviews.llvm.org/D142431
---
llvm/utils/extract_symbols.py | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/llvm/utils/extract_symbols.py b/llvm/utils/extract_symbols.py
index 0f8e8ba64c80..298ee6ba4eeb 100755
--- a/llvm/utils/extract_symbols.py
+++ b/llvm/utils/extract_symbols.py
@@ -141,7 +141,10 @@ def should_keep_microsoft_symbol(symbol, calling_convention_decoration):
# Remove calling convention decoration from names
match = re.match('[_@]([^@]+)', symbol)
if match:
- return match.group(1)
+ symbol = match.group(1)
+ # Discard floating point/SIMD constants.
+ if symbol.startswith(("__xmm@", "__ymm@", "__real@")):
+ return None
return symbol
# Function template instantiations start with ?$; keep the instantiations of
# clang::Type::getAs, as some of them are explipict specializations that are
@@ -165,6 +168,9 @@ def should_keep_microsoft_symbol(symbol, calling_convention_decoration):
# namespace doesn't exist outside of that translation unit.
elif re.search('\?A(0x\w+)?@', symbol):
return None
+ # Skip X86GenMnemonicTables functions, they are not exposed from llvm/include/.
+ elif re.match('\?is[A-Z0-9]*@X86@llvm', symbol):
+ return None
# Keep mangled llvm:: and clang:: function symbols. How we detect these is a
# bit of a mess and imprecise, but that avoids having to completely demangle
# the symbol name. The outermost namespace is at the end of the identifier
--
2.39.0.1.g6739ec1790
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