[PATCH] D45180: libcalls must check for "RtLibUseGOT" metadata during simplification
Sriraman Tallam via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Apr 2 12:35:56 PDT 2018
tmsriram created this revision.
tmsriram added reviewers: rafael, rnk.
Simplification of libcalls like printf->puts must check for RtLibUseGOT metadata.
With -fno-plt, for example, calls to printf when getting converted to puts still use the PLT. This patch checks for the metadata "RtLibUseGOT" and annotates the declaration with the right attributes.
https://reviews.llvm.org/D45180
Files:
include/llvm/Transforms/Utils/BuildLibCalls.h
lib/Transforms/IPO/InferFunctionAttrs.cpp
lib/Transforms/Scalar/LoopIdiomRecognize.cpp
lib/Transforms/Utils/BuildLibCalls.cpp
test/CodeGen/X86/no-plt-libcalls.ll
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