tkonolige commented on code in PR #11906:
URL: https://github.com/apache/tvm/pull/11906#discussion_r907550365
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src/target/codegen.cc:
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@@ -54,6 +55,13 @@ runtime::Module Build(IRModule mod, Target target) {
// the build function.
std::string build_f_name = "target.build." + target->kind->name;
+ if (target->kind->name == "llvm" && !(_mm_getcsr() & 0x8040)) {
+ LOG(WARNING) << "Set FLUSH_TO_ZERO ON by default in Build on LLVM."<<
std::endl;
+ //DAZ
+ _mm_setcsr( _mm_getcsr() | 0x0040 );
+ //FTZ
+ _mm_setcsr( _mm_getcsr() | 0x8000 );
+ }
Review Comment:
Seems like this should be in the runtime not the build. What happens if
someone builds remotely and then uploads the compiled artifact? Seems like
flush to zero would not be changed.
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