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| author | Jan Hubicka <hubicka@ucw.cz> | 2025-05-07 00:24:04 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@ucw.cz> | 2025-05-07 00:26:28 +0200 |
| commit | 62ffaef514aad0eae5d3bc548d8e86d21a3095e7 (patch) | |
| tree | fa6ccc0c4b35ac1267788d35029de4b326418fe9 /libstdc++-v3/doc/doxygen/stdheader.cc | |
| parent | d0571638a6bad932b226ada98b167fa47a47d838 (diff) | |
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i386: Add costs for integer<->float conversions
Extend ix86_rtx_costs to cost FLOAT, UNSIGNED_FLOAT, FIX, and UNSIGNED_FIX.
There are many variants of integer<->float conversions and it seems
meaningful to start with the typical scalar and vector ones. On modern CPUs the
variants differs by at most 1 cycle.
gcc/ChangeLog:
* config/i386/i386.cc (ix86_rtx_costs): Cost FLOAT, UNSIGNED_FLOAT,
FIX, UNSIGNED_FIX.
* config/i386/i386.h (struct processor_costs): Add
cvtsi2ss, cvtss2si, cvtpi2ps, cvtps2pi.
* config/i386/x86-tune-costs.h (struct processor_costs): Update tables.
Diffstat (limited to 'libstdc++-v3/doc/doxygen/stdheader.cc')
0 files changed, 0 insertions, 0 deletions