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| author | Richard Henderson <rth@gcc.gnu.org> | 1998-12-29 03:36:22 -0800 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 1998-12-29 03:36:22 -0800 |
| commit | 185ebd6c71d791ea2f333a23382589620e9bf848 (patch) | |
| tree | 8baca97ed11c13d1b3be83dcd58d2863c4017a2a /gcc/regclass.c | |
| parent | eb8da8684cfdf019f0b0edfd834a479ac366f1d4 (diff) | |
| download | gcc-185ebd6c71d791ea2f333a23382589620e9bf848.zip gcc-185ebd6c71d791ea2f333a23382589620e9bf848.tar.gz gcc-185ebd6c71d791ea2f333a23382589620e9bf848.tar.bz2 | |
Richard Kenner <kenner@vlsi1.ultra.nyu.edu>:
* rtl.def (CONSTANT_P_RTX): Clarify commentary.
* expr.c (expand_builtin, case BUILT_IN_CONSTANT_P): Rework to
consider constant CONSTRUCTOR constant and to defer some cases
to cse.
* cse.c (fold_rtx, case CONST): Add handling for CONSTANT_P_RTX.
* regclass.c (reg_scan_mark_refs, case CONST): Likewise.
Richard Henderson <rth@cygnus.com>
* expr.c (init_expr_once): Kill can_handle_constant_p recognition.
* cse.c (fold_rtx, case 'x'): Remove standalone CONSTANT_P_RTX code.
From-SVN: r24439
Diffstat (limited to 'gcc/regclass.c')
| -rw-r--r-- | gcc/regclass.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/regclass.c b/gcc/regclass.c index b442cc2..489f824 100644 --- a/gcc/regclass.c +++ b/gcc/regclass.c @@ -2032,8 +2032,12 @@ reg_scan_mark_refs (x, insn, note_flag, min_regno) code = GET_CODE (x); switch (code) { - case CONST_INT: case CONST: + if (GET_CODE (XEXP (x, 0)) == CONSTANT_P_RTX) + reg_scan_mark_refs (XEXP (XEXP (x, 0), 0), insn, note_flag, min_regno); + return; + + case CONST_INT: case CONST_DOUBLE: case CC0: case PC: |