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| author | Richard Kenner <kenner@gcc.gnu.org> | 1993-05-06 12:58:33 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1993-05-06 12:58:33 -0400 |
| commit | ab6155b74f075dee48d39dd00f77cab0fd6b4fe4 (patch) | |
| tree | 2d0c64f288d0ad6bdf5ee5672a4c34bee2c33446 /gcc | |
| parent | 36aa0bf595347b210b80a80be4fc561673fa5deb (diff) | |
| download | gcc-ab6155b74f075dee48d39dd00f77cab0fd6b4fe4.zip gcc-ab6155b74f075dee48d39dd00f77cab0fd6b4fe4.tar.gz gcc-ab6155b74f075dee48d39dd00f77cab0fd6b4fe4.tar.bz2 | |
(walk_fixup_memory_subreg): Add new arg UNCRITICAL.
(fixup_var_refs_insn): Call with UNCRITICAL of 1 when processing
REG_NOTES.
From-SVN: r4360
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/function.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/gcc/function.c b/gcc/function.c index b4e03c3..58add12 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -1146,7 +1146,8 @@ fixup_var_refs_insns (var, promoted_mode, unsignedp, insn, toplevel) we will get them elsewhere. */ for (note = REG_NOTES (insn); note; note = XEXP (note, 1)) if (GET_CODE (note) != INSN_LIST) - XEXP (note, 0) = walk_fixup_memory_subreg (XEXP (note, 0), insn); + XEXP (note, 0) + = walk_fixup_memory_subreg (XEXP (note, 0), insn, 1); } insn = next; } @@ -1649,7 +1650,7 @@ fixup_var_refs_1 (var, promoted_mode, loc, insn, replacements) If any insns must be emitted to compute NEWADDR, put them before INSN. UNCRITICAL nonzero means accept paradoxical subregs. - This is used for subregs found inside of ZERO_EXTRACTs. */ + This is used for subregs found inside of ZERO_EXTRACTs and in REG_NOTES. */ static rtx fixup_memory_subreg (x, insn, uncritical) @@ -1687,12 +1688,15 @@ fixup_memory_subreg (x, insn, uncritical) If X itself is a (SUBREG (MEM ...) ...), return the replacement expression. Otherwise return X, with its contents possibly altered. - If any insns must be emitted to compute NEWADDR, put them before INSN. */ + If any insns must be emitted to compute NEWADDR, put them before INSN. + + UNCRITICAL is as in fixup_memory_subreg. */ static rtx -walk_fixup_memory_subreg (x, insn) +walk_fixup_memory_subreg (x, insn, uncritical) register rtx x; rtx insn; + int uncritical; { register enum rtx_code code; register char *fmt; @@ -1704,7 +1708,7 @@ walk_fixup_memory_subreg (x, insn) code = GET_CODE (x); if (code == SUBREG && GET_CODE (SUBREG_REG (x)) == MEM) - return fixup_memory_subreg (x, insn, 0); + return fixup_memory_subreg (x, insn, uncritical); /* Nothing special about this RTX; fix its operands. */ @@ -1712,13 +1716,13 @@ walk_fixup_memory_subreg (x, insn) for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--) { if (fmt[i] == 'e') - XEXP (x, i) = walk_fixup_memory_subreg (XEXP (x, i), insn); + XEXP (x, i) = walk_fixup_memory_subreg (XEXP (x, i), insn, uncritical); if (fmt[i] == 'E') { register int j; for (j = 0; j < XVECLEN (x, i); j++) XVECEXP (x, i, j) - = walk_fixup_memory_subreg (XVECEXP (x, i, j), insn); + = walk_fixup_memory_subreg (XVECEXP (x, i, j), insn, uncritical); } } return x; |