From 8559f6ce62a9d5b52fa8189ba2352cd48bdabccf Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Sat, 25 Jul 2015 12:01:07 +0200 Subject: [PATCH] gallium/radeon: re-enable unsafe math for graphics shaders This reverts commit 4db985a5fa9ea985616a726b1770727309502d81. The grass no longer disappears, which was the reason the commit was reverted. This might affect tessellation. We'll see. Totals from affected shaders: SGPRS: 151672 -> 150232 (-0.95 %) VGPRS: 90620 -> 89776 (-0.93 %) Code Size: 3980472 -> 3920836 (-1.50 %) bytes LDS: 67 -> 67 (0.00 %) blocks Scratch: 1357824 -> 1202176 (-11.46 %) bytes per wave Reviewed-by: Tom Stellard --- src/gallium/drivers/radeon/radeon_llvm_emit.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/gallium/drivers/radeon/radeon_llvm_emit.c b/src/gallium/drivers/radeon/radeon_llvm_emit.c index 973d6ed..c442c65 100644 --- a/src/gallium/drivers/radeon/radeon_llvm_emit.c +++ b/src/gallium/drivers/radeon/radeon_llvm_emit.c @@ -82,6 +82,10 @@ void radeon_llvm_shader_type(LLVMValueRef F, unsigned type) sprintf(Str, "%1d", llvm_type); LLVMAddTargetDependentFunctionAttr(F, "ShaderType", Str); + + if (type != TGSI_PROCESSOR_COMPUTE) { + LLVMAddTargetDependentFunctionAttr(F, "unsafe-fp-math", "true"); + } } static void init_r600_target() -- 2.7.4