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* [gcc r13-4828] middle-end/107994 - ICE after error with comparison gimplification
@ 2022-12-21 12:13 Richard Biener
0 siblings, 0 replies; only message in thread
From: Richard Biener @ 2022-12-21 12:13 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:845b514e8a150447ba041294586af76a6ac05158
commit r13-4828-g845b514e8a150447ba041294586af76a6ac05158
Author: Richard Biener <rguenther@suse.de>
Date: Wed Dec 21 12:27:58 2022 +0100
middle-end/107994 - ICE after error with comparison gimplification
The following avoids passing down error_mark_node to fold_convert.
PR middle-end/107994
* gimplify.cc (gimplify_expr): Catch errorneous comparison
operand.
Diff:
---
gcc/gimplify.cc | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/gcc/gimplify.cc b/gcc/gimplify.cc
index 250782b1140..c9c800a5850 100644
--- a/gcc/gimplify.cc
+++ b/gcc/gimplify.cc
@@ -17098,6 +17098,9 @@ gimplify_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p,
Compare scalar mode aggregates as scalar mode values. Using
memcmp for them would be very inefficient at best, and is
plain wrong if bitfields are involved. */
+ if (error_operand_p (TREE_OPERAND (*expr_p, 1)))
+ ret = GS_ERROR;
+ else
{
tree type = TREE_TYPE (TREE_OPERAND (*expr_p, 1));
@@ -17122,9 +17125,8 @@ gimplify_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p,
ret = gimplify_scalar_mode_aggregate_compare (expr_p);
else
ret = gimplify_variable_sized_compare (expr_p);
-
- break;
}
+ break;
/* If *EXPR_P does not need to be special-cased, handle it
according to its class. */
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