ExternalVendorCode/corda
1
0
Fork 0
mirror of https://github.com/corda/corda.git synced 2025-02-02 09:18:13 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

use mulhwu and eliminate temporary in 64-bit multiplyRR

Browse Source
This commit is contained in:
Joel Dice 2009-03-04 19:50:03 -07:00
parent 77195713b8
commit 3e495b8ca5
1 changed files with 4 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/powerpc.cpp
View File

@ -681,14 +681,12 @@ void subC(Context* con, unsigned size, Const* a, Reg* b, Reg* t) {
void multiplyR(Context* con, unsigned size, Reg* a, Reg* b, Reg* t) { void multiplyR(Context* con, unsigned size, Reg* a, Reg* b, Reg* t) {
if(size == 8) { if(size == 8) {
Reg tmp(getTemp(con));
issue(con, mullw(H(t), H(a), R(b))); issue(con, mullw(H(t), H(a), R(b)));
issue(con, mullw(R(&tmp), R(a), H(b))); issue(con, mullw(R(t), R(a), H(b)));
issue(con, add(H(t), H(t), R(&tmp))); issue(con, add(H(t), H(t), R(t)));
issue(con, mulhw(R(&tmp), R(a), R(b))); issue(con, mulhwu(R(t), R(a), R(b)));
issue(con, add(H(t), H(t), R(&tmp))); issue(con, add(H(t), H(t), R(t)));
issue(con, mullw(R(t), R(a), R(b))); issue(con, mullw(R(t), R(a), R(b)));
freeTemp(con, R(&tmp));
} else { } else {
issue(con, mullw(R(t), R(a), R(b))); issue(con, mullw(R(t), R(a), R(b)));
} }