From a615ea71bc8fbf31b9bc71cb373a7ca5b9cca44a Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Sat, 11 Apr 2020 07:32:12 +0200 Subject: [PATCH] cselib: Mark the cselib_record_sp_cfa_base_equiv VALUE as preserved [PR94551] Sometimes the cselib_record_sp_cfa_base_equiv makes it into the var-tracking used VALUEs and needs to be preserved. 2020-04-11 Jakub Jelinek PR debug/94495 PR target/94551 * cselib.c (cselib_record_sp_cfa_base_equiv): Set PRESERVED_VALUE_P on val->val_rtx. --- gcc/ChangeLog | 7 +++++++ gcc/cselib.c | 5 ++++- 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 33e980bd977..f1a9568d9c4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2020-04-11 Jakub Jelinek + + PR debug/94495 + PR target/94551 + * cselib.c (cselib_record_sp_cfa_base_equiv): Set PRESERVED_VALUE_P on + val->val_rtx. + 2020-04-10 Thomas Schwinge PR middle-end/89433 diff --git a/gcc/cselib.c b/gcc/cselib.c index 3692feb13a2..53e9603868d 100644 --- a/gcc/cselib.c +++ b/gcc/cselib.c @@ -2695,7 +2695,10 @@ cselib_record_sp_cfa_base_equiv (HOST_WIDE_INT offset, rtx_insn *insn) = cselib_lookup_from_insn (plus_constant (Pmode, sp_derived_value, offset), Pmode, 1, VOIDmode, insn); if (val != NULL) - cselib_record_set (stack_pointer_rtx, val, NULL); + { + PRESERVED_VALUE_P (val->val_rtx) = 1; + cselib_record_set (stack_pointer_rtx, val, NULL); + } } /* Return true if V is SP_DERIVED_VALUE_P (or SP_DERIVED_VALUE_P + CONST_INT) -- 2.30.2