[Mesa-dev] [PATCH 6/7] radeonsi: add LLVMNoUnwindAttribute to intrinsic

Christian König deathsimple at vodafone.de
Tue Mar 5 06:27:24 PST 2013


From: Christian König <christian.koenig at amd.com>

So LLVM can better eliminate dead code.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 src/gallium/drivers/radeonsi/radeonsi_shader.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.c b/src/gallium/drivers/radeonsi/radeonsi_shader.c
index 144e0e0..95ccd1e 100644
--- a/src/gallium/drivers/radeonsi/radeonsi_shader.c
+++ b/src/gallium/drivers/radeonsi/radeonsi_shader.c
@@ -431,7 +431,7 @@ static void si_llvm_init_export_args(struct lp_build_tgsi_context *bld_base,
 						"llvm.SI.packf16",
 						LLVMInt32TypeInContext(base->gallivm->context),
 						args, 2,
-						LLVMReadNoneAttribute);
+						LLVMReadNoneAttribute | LLVMNoUnwindAttribute);
 			args[chan + 7] = args[chan + 5] =
 				LLVMBuildBitCast(base->gallivm->builder,
 						 args[chan + 5],
-- 
1.7.9.5



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