On Thu, Jul 17, 2014 at 06:44:25PM +0200, Grigori Goronzy wrote: > Accuracy of some operations was recently improved in the R600 backend, > at the cost of slower code. This is required for compute shaders, > but not for graphics shaders. Add unsafe-fp-math hint to make LLVM > generate faster but possibly less accurate code. > > Piglit didn't indicate any regressions.
Both patches are: Reviewed-by: Tom Stellard <[email protected]> > --- > src/gallium/drivers/radeon/radeon_llvm_emit.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/src/gallium/drivers/radeon/radeon_llvm_emit.c > b/src/gallium/drivers/radeon/radeon_llvm_emit.c > index 1b17dd4..171ccaa 100644 > --- a/src/gallium/drivers/radeon/radeon_llvm_emit.c > +++ b/src/gallium/drivers/radeon/radeon_llvm_emit.c > @@ -26,6 +26,7 @@ > #include "radeon_llvm_emit.h" > #include "radeon_elf_util.h" > #include "util/u_memory.h" > +#include "pipe/p_shader_tokens.h" > > #include <llvm-c/Target.h> > #include <llvm-c/TargetMachine.h> > @@ -50,6 +51,10 @@ void radeon_llvm_shader_type(LLVMValueRef F, unsigned type) > sprintf(Str, "%1d", type); > > LLVMAddTargetDependentFunctionAttr(F, "ShaderType", Str); > + > + if (type != TGSI_PROCESSOR_COMPUTE) { > + LLVMAddTargetDependentFunctionAttr(F, "unsafe-fp-math", "true"); > + } > } > > static void init_r600_target() { > -- > 1.8.3.2 > > _______________________________________________ > mesa-dev mailing list > [email protected] > http://lists.freedesktop.org/mailman/listinfo/mesa-dev _______________________________________________ mesa-dev mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-dev
