diff options
Diffstat (limited to 'gcc/reg-stack.c')
| -rw-r--r-- | gcc/reg-stack.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c index f5d263fbff2..f502958aec5 100644 --- a/gcc/reg-stack.c +++ b/gcc/reg-stack.c @@ -310,7 +310,7 @@ stack_regs_mentioned (const_rtx insn) unsigned int uid, max; int test; - if (! INSN_P (insn) || !stack_regs_mentioned_data) + if (! INSN_P (insn) /* || DEBUG_INSN_P (insn) */ || !stack_regs_mentioned_data) return 0; uid = INSN_UID (insn); @@ -1361,6 +1361,16 @@ subst_stack_regs_pat (rtx insn, stack regstack, rtx pat) since the REG_DEAD notes are not issued.) */ break; + case VAR_LOCATION: + for (dest = ®_NOTES (insn); *dest; dest = &XEXP (*dest, 1)) + if (REG_NOTE_KIND (*dest) == REG_DEAD + && STACK_REG_P (*(src = &XEXP (*dest, 0))) + && TEST_HARD_REG_BIT (regstack->reg_set, REGNO (*src))) + /* ??? This is not right. We want to *avoid* emitting the + pop and the corresponding push. */ + emit_pop_insn (insn, regstack, *src, EMIT_AFTER); + break; + case CLOBBER: { rtx note; |