From: Bernd Schmidt Date: Fri, 6 Nov 1998 19:22:36 +0000 (+0000) Subject: reload1.c (emit_reload_insns): When rewriting the SET_DEST of a previous insn to... X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d30e8ef0dcdb0ae77a98d79879fe07600d9c4c77;p=gcc.git reload1.c (emit_reload_insns): When rewriting the SET_DEST of a previous insn to store directly into our... * reload1.c (emit_reload_insns): When rewriting the SET_DEST of a previous insn to store directly into our reload register, make sure that if the source of the previous insn is a reload register, its spill_reg_store and spill_reg_stored_to values are cleared. From-SVN: r23550 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 87c79fe54c8..1c94751d33e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +Fri Nov 6 20:15:19 1998 Bernd Schmidt + + * reload1.c (emit_reload_insns): When rewriting the SET_DEST of a + previous insn to store directly into our reload register, make sure + that if the source of the previous insn is a reload register, its + spill_reg_store and spill_reg_stored_to values are cleared. + Fri Nov 6 16:35:10 1998 David Edelsohn * rs6000.md (floatunssidf2_internal splitter): Use base register diff --git a/gcc/reload1.c b/gcc/reload1.c index 685d7830fa0..ce574a15e37 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