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gallivm: set LLVMNoUnwindAttribute on all intrinsics

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RadeonSI stats: Mostly 0% difference, but Valley shows a small improvement:

 Application            Files    SGPRs     VGPRs   SpillSGPR SpillVGPR Code Size    LDS    Max Waves   Waits
 unigine_valley           278    0.00 %   -0.29 %    0.00 %    0.00 %    0.01 %    0.00 %    0.17 %    0.00 %

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This commit is contained in:
Marek Olšák 2016-07-01 20:09:47 +02:00
parent 3c44629142
commit d7b6f90684
1 changed files with 4 additions and 2 deletions
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6
src/gallium/auxiliary/gallivm/lp_bld_intr.c
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@ -145,8 +145,10 @@ lp_build_intrinsic(LLVMBuilderRef builder,
function = lp_declare_intrinsic(module, name, ret_type, arg_types, num_args);
if (attr)
LLVMAddFunctionAttr(function, attr);
/* NoUnwind indicates that the intrinsic never raises a C++ exception.
* Set it for all intrinsics.
*/
LLVMAddFunctionAttr(function, attr | LLVMNoUnwindAttribute);
if (gallivm_debug & GALLIVM_DEBUG_IR) {
lp_debug_dump_value(function);