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| author | Eric Botcazou <ebotcazou@act-europe.fr> | 2004-06-01 21:08:01 +0200 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2004-06-01 19:08:01 +0000 |
| commit | 95c73b23dc40a6ba5a6f130d3f981aa36a7de1e5 (patch) | |
| tree | 95f4ccfed08bc2c997acea68171ca1e546a8d4cc /gcc | |
| parent | c1d34f9050f4a44b52ae4b95a10a1a8d3b42061a (diff) | |
| download | gcc-95c73b23dc40a6ba5a6f130d3f981aa36a7de1e5.zip gcc-95c73b23dc40a6ba5a6f130d3f981aa36a7de1e5.tar.gz gcc-95c73b23dc40a6ba5a6f130d3f981aa36a7de1e5.tar.bz2 | |
function.c (walk_fixup_memory_subreg): New parameter 'var'.
* function.c (walk_fixup_memory_subreg): New parameter 'var'.
Call fixup_memory_subreg only if the MEM is equal to 'var'.
Adjust recursive calls to self.
(fixup_var_refs_insn): Pass 'var' to walk_fixup_memory_subreg.
From-SVN: r82555
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/function.c | 22 |
2 files changed, 18 insertions, 11 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4ee2ec2..372c12d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2004-06-01 Eric Botcazou <ebotcazou@act-europe.fr> + + * function.c (walk_fixup_memory_subreg): New parameter 'var'. + Call fixup_memory_subreg only if the MEM is equal to 'var'. + Adjust recursive calls to self. + (fixup_var_refs_insn): Pass 'var' to walk_fixup_memory_subreg. + 2004-06-01 Richard Henderson <rth@redhat.com> Andrew Pinski <pinskia@physics.uc.edu> diff --git a/gcc/function.c b/gcc/function.c index c34c191..3744bf5 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -241,7 +241,7 @@ static void fixup_var_refs_insn (rtx, rtx, enum machine_mode, int, int, rtx); static void fixup_var_refs_1 (rtx, enum machine_mode, rtx *, rtx, struct fixup_replacement **, rtx); static rtx fixup_memory_subreg (rtx, rtx, enum machine_mode, int); -static rtx walk_fixup_memory_subreg (rtx, rtx, enum machine_mode, int); +static rtx walk_fixup_memory_subreg (rtx, rtx, rtx, enum machine_mode, int); static rtx fixup_stack_1 (rtx, rtx); static void optimize_bit_field (rtx, rtx, rtx *); static void instantiate_decls (tree, int); @@ -1914,7 +1914,7 @@ fixup_var_refs_insn (rtx insn, rtx var, enum machine_mode promoted_mode, { if (GET_CODE (note) != INSN_LIST) XEXP (note, 0) - = walk_fixup_memory_subreg (XEXP (note, 0), insn, + = walk_fixup_memory_subreg (XEXP (note, 0), insn, var, promoted_mode, 1); note = XEXP (note, 1); } @@ -2601,17 +2601,17 @@ fixup_memory_subreg (rtx x, rtx insn, enum machine_mode promoted_mode, int uncri return result; } -/* Do fixup_memory_subreg on all (SUBREG (MEM ...) ...) contained in X. +/* Do fixup_memory_subreg on all (SUBREG (VAR) ...) contained in X. + VAR is a MEM that used to be a pseudo register with mode PROMOTED_MODE. Replace subexpressions of X in place. - If X itself is a (SUBREG (MEM ...) ...), return the replacement expression. + If X itself is a (SUBREG (VAR) ...), return the replacement expression. Otherwise return X, with its contents possibly altered. - INSN, PROMOTED_MODE and UNCRITICAL are as for - fixup_memory_subreg. */ + INSN and UNCRITICAL are as for fixup_memory_subreg. */ static rtx -walk_fixup_memory_subreg (rtx x, rtx insn, enum machine_mode promoted_mode, - int uncritical) +walk_fixup_memory_subreg (rtx x, rtx insn, rtx var, + enum machine_mode promoted_mode, int uncritical) { enum rtx_code code; const char *fmt; @@ -2622,7 +2622,7 @@ walk_fixup_memory_subreg (rtx x, rtx insn, enum machine_mode promoted_mode, code = GET_CODE (x); - if (code == SUBREG && GET_CODE (SUBREG_REG (x)) == MEM) + if (code == SUBREG && SUBREG_REG (x) == var) return fixup_memory_subreg (x, insn, promoted_mode, uncritical); /* Nothing special about this RTX; fix its operands. */ @@ -2631,14 +2631,14 @@ walk_fixup_memory_subreg (rtx x, rtx insn, enum machine_mode promoted_mode, 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, var, promoted_mode, uncritical); else if (fmt[i] == 'E') { 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, var, promoted_mode, uncritical); } } |