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| author | Jim Wilson <jimw@sifive.com> | 2018-05-17 22:37:38 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 2018-05-17 15:37:38 -0700 |
| commit | 7bbce9b50302959286381d9177818642bceaf301 (patch) | |
| tree | 0ce4f20f1d1ab9a42ba1843c8d03e69332f11446 /gotools | |
| parent | 4e0684beff1fcd8398425b1fbe237cdbcb34c359 (diff) | |
| download | gcc-7bbce9b50302959286381d9177818642bceaf301.zip gcc-7bbce9b50302959286381d9177818642bceaf301.tar.gz gcc-7bbce9b50302959286381d9177818642bceaf301.tar.bz2 | |
RISC-V: Optimize switch with sign-extended index.
gcc/
* expr.c (do_tablejump): When converting index to Pmode, if we have a
sign extended promoted subreg, and the range does not have the sign bit
set, then do a sign extend.
* config/riscv/riscv.c (riscv_extend_comparands): In unsigned QImode
test, check for sign extended subreg and/or constant operands, and
do a sign extend in that case.
gcc/testsuite/
* gcc.target/riscv/switch-qi.c: New.
* gcc.target/riscv/switch-si.c: New.
From-SVN: r260340
Diffstat (limited to 'gotools')
0 files changed, 0 insertions, 0 deletions