diff options
Diffstat (limited to 'gcc/reload1.c')
| -rw-r--r-- | gcc/reload1.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index 685d783..ce574a1 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -6774,6 +6774,18 @@ emit_reload_insns (chain) { /* Store into the reload register instead of the pseudo. */ SET_DEST (PATTERN (temp)) = reloadreg; + + /* If the previous insn is an output reload, the source is + a reload register, and its spill_reg_store entry will + contain the previous destination. This is now + invalid. */ + if (GET_CODE (SET_SRC (PATTERN (temp))) == REG + && REGNO (SET_SRC (PATTERN (temp))) < FIRST_PSEUDO_REGISTER) + { + spill_reg_store[REGNO (SET_SRC (PATTERN (temp)))] = 0; + spill_reg_stored_to[REGNO (SET_SRC (PATTERN (temp)))] = 0; + } + /* If these are the only uses of the pseudo reg, pretend for GDB it lives in the reload reg we used. */ if (REG_N_DEATHS (REGNO (old)) == 1 |