Ulrich Weigand 339d0597d3 On PowerPC64, integer return values (as well as arguments) are supposed ... to be extended to a full register. This is modeled in the IR by marking the return value (or argument) with a signext or zeroext attribute. However, while these attributes are respected for function arguments, they are currently ignored for function return values by the PowerPC back-end. This patch updates PPCCallingConv.td to ask for the promotion to i64, and fixes LowerReturn and LowerCallResult to implement it. The new test case verifies that both arguments and return values are properly extended when passing them; and also that the optimizers understand incoming argument and return values are in fact guaranteed by the ABI to be extended. The patch caused a spurious breakage in CodeGen/PowerPC/coalesce-ext.ll, since the test case used a "ret" instruction to create a use of an i32 value at the end of the function (to set up data flow as required for what the test is intended to test). Since there's now an implicit promotion to i64, that data flow no longer works as expected. To fix this, this patch now adds an extra "add" to ensure we have an appropriate use of the i32 value. llvm-svn: 167396		2012-11-05 19:39:45 +00:00
clang	On PowerPC64, integer arguments and return values need to be sign- or	2012-11-05 19:13:42 +00:00
clang-tools-extra	Following the example from loop-convert tests, simplifying the remove-cstr-calls lit script.	2012-11-05 18:28:45 +00:00
compiler-rt	[Sanitizer] Add internal_isatty to sanitizer_libc and PrintsToTty to determine whether error reports are printed to terminal	2012-11-02 15:18:34 +00:00
debuginfo-tests	XTARGET was removed, update debug-info tests.	2012-10-20 01:38:50 +00:00
libclc	Implement any() builtin. Patch by Tom Stellard!	2012-10-08 03:39:21 +00:00
libcxx	peek should set eofbit if sgetc() returns eof.	2012-11-01 17:32:07 +00:00
libcxxabi	Make the type_info for __shim_type_info visible. This should address some failing dynamic_casts that a few applications are doing on the type_info hierarchy.	2012-10-13 18:45:59 +00:00
lld	Add absolute symbol scope recognition in lld/Core	2012-11-05 19:13:54 +00:00
lldb	Avoid potentially disastrous mistakes when removing a file.	2012-11-05 18:41:33 +00:00
llvm	On PowerPC64, integer return values (as well as arguments) are supposed	2012-11-05 19:39:45 +00:00
polly	Tests: Pipe test files into 'opt'	2012-11-04 16:56:20 +00:00