Displaying 2 results from an estimated 2 matches for "2b27d70f".
2013 Sep 19
0
[LLVMdev] Proposal to improve vzeroupper optimization strategy
...9;t make sense
on most platforms.
If you want a mechanism to disable vzeroupper generation for particular
function calls, that might make sense...
-Eli
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2013 Sep 19
5
[LLVMdev] Proposal to improve vzeroupper optimization strategy
Hi all,
I would like to make a proposal about changing the optimization strategy
regarding when to insert a vzeroupper instruction in the x86 backend.
Current implementation:
vzeroupper is inserted to any functions that use AVX instructions. The
insertion points are:
1) before a call instruction;
2) before a return instruction;
Rationale:
vzeroupper is an AVX instruction; it is inserted to