diff options
| author | Pan Li <pan2.li@intel.com> | 2025-08-01 10:42:23 +0800 |
|---|---|---|
| committer | Pan Li <pan2.li@intel.com> | 2025-08-11 21:10:09 +0800 |
| commit | 7d2daedde2a4ec620735d84610b05203a9cc2606 (patch) | |
| tree | 3a91a2f6988d46fab30d804dc2d5a26c26ee3cbd /libjava/java/net/URLStreamHandler.java | |
| parent | deb0a4c80414697d07e808b1d2500229eb281600 (diff) | |
| download | gcc-7d2daedde2a4ec620735d84610b05203a9cc2606.zip gcc-7d2daedde2a4ec620735d84610b05203a9cc2606.tar.gz gcc-7d2daedde2a4ec620735d84610b05203a9cc2606.tar.bz2 | |
Widening-Mul: Support unsigned scalar SAT_MUL 2
For mul_overflow api, we will have PHI node similar as below:
_6 = .MUL_OVERFLOW (a_4(D), b_5(D));
_2 = IMAGPART_EXPR <_6>;
if (_2 != 0)
goto <bb 4>; [35.00%]
else
goto <bb 3>; [65.00%]
<bb 3> [local count: 697932184]:
_1 = REALPART_EXPR <_6>;
<bb 4> [local count: 1073741824]:
# _3 = PHI <18446744073709551615(2), _1(3)>
Based on the help of match.pd pattern match, the widening-mul will
try to convert it to below:
_3 = .SAT_MUL (a_4(D), b_5(D));
gcc/ChangeLog:
* tree-ssa-math-opts.cc (match_saturation_mul): Add new func
to emit IFN_SAT_MUL if matched.
(math_opts_dom_walker::after_dom_children): Try to match
the phi node for SAT_MUL.
Signed-off-by: Pan Li <pan2.li@intel.com>
Diffstat (limited to 'libjava/java/net/URLStreamHandler.java')
0 files changed, 0 insertions, 0 deletions