diff options
Diffstat (limited to 'gcc/var-tracking.c')
| -rw-r--r-- | gcc/var-tracking.c | 25 |
1 files changed, 17 insertions, 8 deletions
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); } } |