7 Commits

Author	SHA1	Message	Date
Matt Arsenault	a982e4f82b	Combine fcmp + select to fminnum / fmaxnum if no nans and legal ... Also require unsafe FP math for no since there isn't a way to test for signed zeros. llvm-svn: 225744	2015-01-13 00:43:00 +00:00
Tom Stellard	49f8bfdcb7	R600/SI: Add a stub GCNTargetMachine ... This is equivalent to the AMDGPUTargetMachine now, but it is the starting point for separating R600 and GCN functionality into separate targets. It is recommened that users start using the gcn triple for GCN-based GPUs, because using the r600 triple for these GPUs will be deprecated in the future. llvm-svn: 225277	2015-01-06 18:00:21 +00:00
Matt Arsenault	dc10307524	R600/SI: Only form min/max with 1 use. ... If the condition is used for something else, this increases the number of instructions. llvm-svn: 224646	2014-12-19 23:15:30 +00:00
Matt Arsenault	1e3a4ebc6e	R600: Fix min/max matching problems with unordered compares ... The returned operand needs to be permuted for the unordered compares. Also fix incorrectly producing fmin_legacy / fmax_legacy for f64, which don't exist. llvm-svn: 224094	2014-12-12 02:30:37 +00:00
Matt Arsenault	fb13b22d9a	R600/SI: Change mubuf offsets to print as decimal ... This matches SC's behavior. llvm-svn: 223194	2014-12-03 03:12:13 +00:00
Matt Arsenault	36094d788a	R600: Permute operands when selecting legacy min/max ... This gets the correct NaN behavior based on the compare type the hardware uses. This now passes the new piglit test I have for this on SI. Add stricter tests for the operand order. llvm-svn: 222079	2014-11-15 05:02:57 +00:00
Matt Arsenault	da59f3de45	R600/SI: Fix fmin_legacy / fmax_legacy matching for SI ... select_cc is expanded on SI, so this was never matched. llvm-svn: 221941	2014-11-13 23:03:09 +00:00