| commit | 666fdc46bc848984ee7d2906f2dfe10e1ee5d535 | |
| author | Jim Wilson <jimw@sifive.com> | |
| Sat, 30 Jun 2018 21:52:01 +0000 (30 21:52 +0000) | ||
| committer | Jim Wilson <wilson@gcc.gnu.org> | |
| Sat, 30 Jun 2018 21:52:01 +0000 (30 14:52 -0700) | ||
| tree | dfcba939f1bcd8dc96d335edf960ac2bf2c767a9 | treesnapshot (tar.gz zip) |
| parent | 3330053ecaafe8bca82cc3845be9b2d01a614eb1 | commitdiff |
RISC-V: Add patterns to convert AND mask to two shifts.
gcc/
* config/riscv/predicates.md (p2m1_shift_operand): New.
(high_mask_shift_operand): New.
* config/riscv/riscv.md (lshrsi3_zero_extend_3+1): New combiner
pattern using p2m1_shift_operand.
(lshsi3_zero_extend_3+2): New combiner pattern using
high_mask_shift_operand.
gcc/testsuite/
* gcc.target/riscv/shift-shift-1.c: New.
* gcc.target/riscv/shift-shift-2.c: New.
* gcc.target/riscv/shift-shift-3.c: New.
From-SVN: r262278
gcc/
* config/riscv/predicates.md (p2m1_shift_operand): New.
(high_mask_shift_operand): New.
* config/riscv/riscv.md (lshrsi3_zero_extend_3+1): New combiner
pattern using p2m1_shift_operand.
(lshsi3_zero_extend_3+2): New combiner pattern using
high_mask_shift_operand.
gcc/testsuite/
* gcc.target/riscv/shift-shift-1.c: New.
* gcc.target/riscv/shift-shift-2.c: New.
* gcc.target/riscv/shift-shift-3.c: New.
From-SVN: r262278
| gcc/ChangeLog | diffblobblamehistory | |
| gcc/config/riscv/predicates.md | diffblobblamehistory | |
| gcc/config/riscv/riscv.md | diffblobblamehistory | |
| gcc/testsuite/ChangeLog | diffblobblamehistory | |
| gcc/testsuite/gcc.target/riscv/shift-shift-1.c | [new file with mode: 0644] | blob |
| gcc/testsuite/gcc.target/riscv/shift-shift-2.c | [new file with mode: 0644] | blob |
| gcc/testsuite/gcc.target/riscv/shift-shift-3.c | [new file with mode: 0644] | blob |