2 Commits

Author	SHA1	Message	Date
Tom Stellard	d70d216860	R600/SI: Fix another case of illegal VGPR to SGPR copy ... This fixes a crash in Unigine Tropics. https://bugs.freedesktop.org/show_bug.cgi?id=68389 llvm-svn: 189057	2013-08-22 20:21:02 +00:00
Tom Stellard	3b9645302a	R600/SI: Use VSrc_* register classes as the default classes for types ... Since the VSrc_* register classes contain both VGPRs and SGPRs, copies that used be emitted by isel like this: SGPR = COPY VGPR Will now be emitted like this: VSrC = COPY VGPR This patch also adds a pass that tries to identify and fix situations where a VGPR to SGPR copy may occur. Hopefully, these changes will make it impossible for the compiler to generate illegal VGPR to SGPR copies. llvm-svn: 187831	2013-08-06 23:08:28 +00:00