[PATCH] D52635: [FunctionAttrs] Propagate nonnull argument attributes from callsites to callers
Dávid Bolvanský via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Sep 27 15:19:55 PDT 2018
xbolva00 updated this revision to Diff 167406.
https://reviews.llvm.org/D52635
Files:
lib/Transforms/IPO/FunctionAttrs.cpp
test/Transforms/FunctionAttrs/nonnull.ll
Index: test/Transforms/FunctionAttrs/nonnull.ll
===================================================================
--- test/Transforms/FunctionAttrs/nonnull.ll
+++ test/Transforms/FunctionAttrs/nonnull.ll
@@ -1,4 +1,6 @@
+; RUN: opt -S -functionattrs %s | FileCheck %s
; RUN: opt -S -functionattrs -enable-nonnull-arg-prop %s | FileCheck %s
+; RUN: opt -S -passes=function-attrs %s | FileCheck %s
; RUN: opt -S -passes=function-attrs -enable-nonnull-arg-prop %s | FileCheck %s
declare nonnull i8* @ret_nonnull()
Index: lib/Transforms/IPO/FunctionAttrs.cpp
===================================================================
--- lib/Transforms/IPO/FunctionAttrs.cpp
+++ lib/Transforms/IPO/FunctionAttrs.cpp
@@ -76,11 +76,8 @@
STATISTIC(NumNoRecurse, "Number of functions marked as norecurse");
STATISTIC(NumNoUnwind, "Number of functions marked as nounwind");
-// FIXME: This is disabled by default to avoid exposing security vulnerabilities
-// in C/C++ code compiled by clang:
-// http://lists.llvm.org/pipermail/cfe-dev/2017-January/052066.html
static cl::opt<bool> EnableNonnullArgPropagation(
- "enable-nonnull-arg-prop", cl::Hidden,
+ "enable-nonnull-arg-prop", cl::Hidden, cl::init(true),
cl::desc("Try to propagate nonnull argument attributes from callsites to "
"caller functions."));
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