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| author | Bernd Schmidt <bernd.schmidt@analog.com> | 2006-04-24 19:35:38 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2006-04-24 19:35:38 +0000 |
| commit | e551ad2608228e879d774e51b935089e1bd2dae4 (patch) | |
| tree | 18e2a0a01b54455ec7b83b50a6b6607d07c7c934 /gcc/simplify-rtx.c | |
| parent | bfa1122312a8db70406aaf8a97e55352258f336e (diff) | |
| download | gcc-e551ad2608228e879d774e51b935089e1bd2dae4.zip gcc-e551ad2608228e879d774e51b935089e1bd2dae4.tar.gz gcc-e551ad2608228e879d774e51b935089e1bd2dae4.tar.bz2 | |
rtl.def (SS_ASHIFT, SS_NEG): New codes.
* rtl.def (SS_ASHIFT, SS_NEG): New codes.
* doc/rtl.texi: Document them.
* simplify-rtx.c (simplify_unary_operation,
simplify_binary_operation_1): Don't abort when we see them.
From-SVN: r113227
Diffstat (limited to 'gcc/simplify-rtx.c')
| -rw-r--r-- | gcc/simplify-rtx.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 0ce033d..962c2de 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -1092,6 +1092,7 @@ simplify_const_unary_operation (enum rtx_code code, enum machine_mode mode, case FLOAT_TRUNCATE: case SS_TRUNCATE: case US_TRUNCATE: + case SS_NEG: return 0; default: @@ -2422,6 +2423,7 @@ simplify_binary_operation_1 (enum rtx_code code, enum machine_mode mode, /* Fall through.... */ case ASHIFT: + case SS_ASHIFT: case LSHIFTRT: if (trueop1 == CONST0_RTX (mode)) return op0; @@ -3110,6 +3112,7 @@ simplify_const_binary_operation (enum rtx_code code, enum machine_mode mode, case US_PLUS: case SS_MINUS: case US_MINUS: + case SS_ASHIFT: /* ??? There are simplifications that can be done. */ return 0; |