| commit | a4eee021952f965c2fd789868be5f6887db1f696 | |
| author | Calvin Buckley <calvin@cmpct.info> | |
| Thu, 28 Feb 2019 14:31:12 +0000 (28 10:31 -0400) | ||
| committer | Ludovic Henry <luhenry@microsoft.com> | |
| Thu, 28 Feb 2019 14:31:12 +0000 (28 09:31 -0500) | ||
| tree | 7bcbb12714d5fcc017d975e7d64c2c9cf1ccfe63 | treesnapshot (tar.gz zip) |
| parent | 3487962a8268b0b969e2b0d185f3e3f8cde8e432 | commitdiff |
PPC JIT optimizations (System.Math instruction inlining) (#11964)
* [ppc] Optimize floating point performance in the JIT sqrt/sqrtf/abs
* [ppc] Integer Min/Max inlining wiht POWER5 isel instruction
Compresses a function call down to two instruction, for both signed
and unsigned, long and int. Needs to check for POWE5 though, and I
don't know the effects of this on ppc32. FP version using fsel is
also desirable, but not in the scope of this commit.
* [ppc] Check for POWER5 compatible CPU before using isel
* [ppc] Don't use long min/max inlining for ppc32
Other 64-bit operations are marked for ppc64 only.
* [ppc] also ifdef that out for ppc32 too
* [ppc] Rounding function optimizations
* [ppc] Optimize floating point performance in the JIT sqrt/sqrtf/abs
* [ppc] Integer Min/Max inlining wiht POWER5 isel instruction
Compresses a function call down to two instruction, for both signed
and unsigned, long and int. Needs to check for POWE5 though, and I
don't know the effects of this on ppc32. FP version using fsel is
also desirable, but not in the scope of this commit.
* [ppc] Check for POWER5 compatible CPU before using isel
* [ppc] Don't use long min/max inlining for ppc32
Other 64-bit operations are marked for ppc64 only.
* [ppc] also ifdef that out for ppc32 too
* [ppc] Rounding function optimizations