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* Have the driver and the target code agree on what the default ABIEric Christopher2014-12-051-11/+11
| | | | | | | | | is for each machine. Fix up darwin tests that were testing for aapcs on armv7-ios when the actual ABI is apcs. Should be no user visible change without -cc1. llvm-svn: 223429
* Include translation unit filename in global ctor symbol names.Nico Weber2014-05-061-1/+1
| | | | | | | | | | | | | | | | | This makes it easier to see where a global ctor comes from, and it also makes ASan's init order analyzer output easier to understand. gcc does this too, but only in -fPIC mode for some reason. Don't do this for constructors with explicit init priority. Also prepend "sub_" before the 'I', that way regular constructors stay lexicographically after symbols with init priority (because ord('s') > ord('I')). gold seems to ignore the name of constructor symbols, and ld only looks at the symbol if it includes an init priority, which this patch doesn't change. Before: __GLOBAL_I_a Now: __GLOBAL_sub_I_myfile.cc llvm-svn: 208128
* CHECK-LABEL-ify some code gen tests to improve diagnostic experience when ↵Stephen Lin2013-08-151-3/+3
| | | | | | tests fail. llvm-svn: 188447
* Use the actual ABI-determined C calling convention for runtimeJohn McCall2013-02-281-0/+53
calls and declarations. LLVM has a default CC determined by the target triple. This is not always the actual default CC for the ABI we've been asked to target, and so we sometimes find ourselves annotating all user functions with an explicit calling convention. Since these calling conventions usually agree for the simple set of argument types passed to most runtime functions, using the LLVM-default CC in principle has no effect. However, the LLVM optimizer goes into histrionics if it sees this kind of formal CC mismatch, since it has no concept of CC compatibility. Therefore, if this module happens to define the "runtime" function, or got LTO'ed with such a definition, we can miscompile; so it's quite important to get this right. Defining runtime functions locally is quite common in embedded applications. llvm-svn: 176286
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