Displaying 2 results from an estimated 2 matches for "9731ad80".
2013 Mar 19
0
[LLVMdev] ARM NEON VMUL.f32 issue
Hi Renato,
You're right. Strictly speaking, using NEON for scalar floating point isn't completely safe for exactly this reason (also NaNs, IIRC). We generally do it anyway because on common cores (cortex-a8) VFP is pretty terrible and the NEON approximation is correct for the vast majority of use-cases that people care about. Yes, that's cutting some corners. Would you mind making
2013 Mar 19
4
[LLVMdev] ARM NEON VMUL.f32 issue
Hi folks,
I just "fixed" a bug on ARM LNT regarding lowering of a VMUL.f32 as NEON
and not VFP. The former is not IEEE 754 compliant, while the latter is, and
that was failing TSVC.
The question is:
* is this a problem with the test, that shouldn't be expecting values
below FLT_MIN, or
* is it a bug in the lowering, that should only be lowering to NEON's VMUL
when unsafe-math