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| author | Bob Wilson <bob.wilson@acm.org> | 2008-10-21 18:06:12 +0000 |
|---|---|---|
| committer | Bob Wilson <bwilson@gcc.gnu.org> | 2008-10-21 18:06:12 +0000 |
| commit | 7d4074339038e21d9bfc7656b5ed8db4b5c57f01 (patch) | |
| tree | 2177c51ed2d72409e3256ff49607c4af9cfd3328 /gcc | |
| parent | cd6d4007aa4f72b51756e4a571abf876fa3e3133 (diff) | |
| download | gcc-7d4074339038e21d9bfc7656b5ed8db4b5c57f01.zip gcc-7d4074339038e21d9bfc7656b5ed8db4b5c57f01.tar.gz gcc-7d4074339038e21d9bfc7656b5ed8db4b5c57f01.tar.bz2 | |
var-tracking.c (insn_stack_adjust_offset_pre_post): If insn has a REG_FRAME_RELATED_EXPR note...
* var-tracking.c (insn_stack_adjust_offset_pre_post): If insn has a
REG_FRAME_RELATED_EXPR note, examine the pattern from the note instead
of from insn.
From-SVN: r141272
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/var-tracking.c | 25 |
2 files changed, 23 insertions, 8 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2400d99..cf00fef 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2008-10-21 Bob Wilson <bob.wilson@acm.org> + + * var-tracking.c (insn_stack_adjust_offset_pre_post): If insn has a + REG_FRAME_RELATED_EXPR note, examine the pattern from the note instead + of from insn. + 2008-10-21 Adam Nemet <anemet@caviumnetworks.com> PR middle-end/37669 diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c index ab4d93c..2b92e40 100644 --- a/gcc/var-tracking.c +++ b/gcc/var-tracking.c @@ -466,22 +466,31 @@ static void insn_stack_adjust_offset_pre_post (rtx insn, HOST_WIDE_INT *pre, HOST_WIDE_INT *post) { + rtx pattern; + *pre = 0; *post = 0; - if (GET_CODE (PATTERN (insn)) == SET) - stack_adjust_offset_pre_post (PATTERN (insn), pre, post); - else if (GET_CODE (PATTERN (insn)) == PARALLEL - || GET_CODE (PATTERN (insn)) == SEQUENCE) + pattern = PATTERN (insn); + if (RTX_FRAME_RELATED_P (insn)) + { + rtx expr = find_reg_note (insn, REG_FRAME_RELATED_EXPR, NULL_RTX); + if (expr) + pattern = XEXP (expr, 0); + } + + if (GET_CODE (pattern) == SET) + stack_adjust_offset_pre_post (pattern, pre, post); + else if (GET_CODE (pattern) == PARALLEL + || GET_CODE (pattern) == SEQUENCE) { int i; /* There may be stack adjustments inside compound insns. Search for them. */ - for ( i = XVECLEN (PATTERN (insn), 0) - 1; i >= 0; i--) - if (GET_CODE (XVECEXP (PATTERN (insn), 0, i)) == SET) - stack_adjust_offset_pre_post (XVECEXP (PATTERN (insn), 0, i), - pre, post); + for ( i = XVECLEN (pattern, 0) - 1; i >= 0; i--) + if (GET_CODE (XVECEXP (pattern, 0, i)) == SET) + stack_adjust_offset_pre_post (XVECEXP (pattern, 0, i), pre, post); } } |