3 Commits

Author	SHA1	Message	Date
Rafael Espindola	9aadcc4c0e	s/compiler_used/compiler.used/. ... We were incorrectly using compiler_used instead of compiler.used. Unfortunately the passes using the broken name had tests also using the broken name. llvm-svn: 186705	2013-07-19 18:44:51 +00:00
Rafael Espindola	a82555c0f8	Change how globalopt handles aliases in llvm.used. ... Instead of a custom implementation of replaceAllUsesWith, we just call replaceAllUsesWith and recreate llvm.used and llvm.compiler-used. This change is particularity interesting because it makes llvm see through what clang is doing with static used functions in extern "C" contexts. With this change, running clang -O2 in extern "C" { __attribute__((used)) static void foo() {} } produces @llvm.used = appending global [1 x i8*] [i8* bitcast (void ()* @foo to i8*)], section "llvm.metadata" define internal void @foo() #0 { entry: ret void } llvm-svn: 183756	2013-06-11 17:48:06 +00:00
Rafael Espindola	007521673b	Don't replace an alias in llvm.used with its target. ... When we replace an internal alias with its target, be careful not to replace the entry in llvm.used (and llvm.compiler_used). llvm-svn: 181524	2013-05-09 17:22:59 +00:00