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| author | Li Jia He <helijia@linux.ibm.com> | 2019-06-26 08:23:06 +0000 |
|---|---|---|
| committer | Li Jia He <helijia@gcc.gnu.org> | 2019-06-26 08:23:06 +0000 |
| commit | fdfbed383e48f9a6fce6ef1e0e0defea0363ac3f (patch) | |
| tree | 5ade5236ca921e53c9aa2e0b78b6a0f188de6f96 /gcc/tree-inline.c | |
| parent | de80936dbf2ae4a6304a8cbe70e05b483bcc7ee9 (diff) | |
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[RS6000] Change maddld match_operand from DI to GPR
From PowerPC ISA3.0, the description of `maddld RT, RA.RB, RC` is as follows:
64-bit RA and RB are multiplied and then the RC is signed extend to 128 bits,
and add them together.
We only apply it to 64-bit mode (DI) when implementing maddld. However, if we
can guarantee that the result of the maddld operation will be limited to 32-bit
mode (SI), we can still apply it to 32-bit mode (SI).
gcc/ChangeLog
2019-06-26 Li Jia He <helijia@linux.ibm.com>
* config/rs6000/rs6000.h (TARGET_MADDLD): Remove the restriction of
TARGET_POWERPC64.
* config/rs6000/rs6000.md (maddld): Change maddld match_operand from DI
to GPR.
gcc/testsuite/ChangeLog
2019-06-26 Li Jia He <helijia@linux.ibm.com>
* gcc.target/powerpc/maddld-1.c: New testcase.
From-SVN: r272673
Diffstat (limited to 'gcc/tree-inline.c')
0 files changed, 0 insertions, 0 deletions