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authorMichel Danzer <michel.daenzer@amd.com>2013-03-08 10:58:01 +0000
committerMichel Danzer <michel.daenzer@amd.com>2013-03-08 10:58:01 +0000
commitd787c047bcc5d0d81743f9d4403d5c54fe4757fe (patch)
tree88a18310db317c02cc41551e00dcb9eb4137aaba
parentfff2d3aed9d50780d9d07859b03120dcd712d96e (diff)
R600/SI: Use source scheduler
This is certainly not the last word on scheduling for this target, but right now this allows a few apps to run / finish with radeonsi, most notably UT2004 / Lightsmark. They fail to compile some shaders with the default scheduler because it ends up trying to spill registers, which we don't support yet (and which is probably a bad idea in general for performance if it can be avoided). NOTE: This is a candidate for the Mesa stable branch. Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Tom Stellard <thomas.stellard@amd.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176687 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/Target/R600/SIISelLowering.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Target/R600/SIISelLowering.cpp b/lib/Target/R600/SIISelLowering.cpp
index fead115707..063f5faa63 100644
--- a/lib/Target/R600/SIISelLowering.cpp
+++ b/lib/Target/R600/SIISelLowering.cpp
@@ -68,6 +68,8 @@ SITargetLowering::SITargetLowering(TargetMachine &TM) :
setTargetDAGCombine(ISD::SELECT_CC);
setTargetDAGCombine(ISD::SETCC);
+
+ setSchedulingPreference(Sched::Source);
}
SDValue SITargetLowering::LowerFormalArguments(