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* [gcc r14-2046] Fix initializer_constant_valid_p_1 TYPE_PRECISION use
@ 2023-06-23 12:16 Richard Biener
0 siblings, 0 replies; only message in thread
From: Richard Biener @ 2023-06-23 12:16 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:2acbbf41d4c2a3362991863ce265041f9a2feee4
commit r14-2046-g2acbbf41d4c2a3362991863ce265041f9a2feee4
Author: Richard Biener <rguenther@suse.de>
Date: Fri Jun 23 12:50:50 2023 +0200
Fix initializer_constant_valid_p_1 TYPE_PRECISION use
initializer_constant_valid_p_1 is letting through all conversions
of float vector types that have the same number of elements but
that's of course not valid. The following restricts the code
to scalar floating point types as was probably intended (only
scalar integer types are handled as well).
* varasm.cc (initializer_constant_valid_p_1): Only
allow conversions between scalar floating point types.
Diff:
---
gcc/varasm.cc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/varasm.cc b/gcc/varasm.cc
index dd84754a283..f2a19aa6dbd 100644
--- a/gcc/varasm.cc
+++ b/gcc/varasm.cc
@@ -4885,7 +4885,8 @@ initializer_constant_valid_p_1 (tree value, tree endtype, tree *cache)
/* Allow length-preserving conversions between integer types and
floating-point types. */
if (((INTEGRAL_TYPE_P (dest_type) && INTEGRAL_TYPE_P (src_type))
- || (FLOAT_TYPE_P (dest_type) && FLOAT_TYPE_P (src_type)))
+ || (SCALAR_FLOAT_TYPE_P (dest_type)
+ && SCALAR_FLOAT_TYPE_P (src_type)))
&& (TYPE_PRECISION (dest_type) == TYPE_PRECISION (src_type)))
return initializer_constant_valid_p_1 (src, endtype, cache);
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2023-06-23 12:16 [gcc r14-2046] Fix initializer_constant_valid_p_1 TYPE_PRECISION use Richard Biener
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