On 11/8/21 13:26, Martin Liška wrote:
On 11/5/21 17:08, Martin Liška wrote:
On 8/23/21 10:54, Martin Liška wrote:
On 8/16/21 13:13, Martin Liška wrote:
I'm going to apply the following 3 tested patches.
Martin
One more patch I've just tested.
Martin
And one more backport.
Martin
One more tested patch.
Martin
And one more tested patch.
Martin
From d4e305e4498039b921070418069a68648188b196 Mon Sep 17 00:00:00 2001
From: Martin Liska <mli...@suse.cz>
Date: Mon, 13 Dec 2021 15:34:30 +0100
Subject: [PATCH] i386: Fix emissing of __builtin_cpu_supports.
PR target/103661
gcc/ChangeLog:
* config/i386/i386-builtins.c (fold_builtin_cpu): Compare to 0
as API expects that non-zero values are returned (do that
it mask == 31).
For "avx512vbmi2" argument, we return now 1 << 31, which is a
negative integer value.
(cherry picked from commit 127c7178d5ec502d95862fd823537cbca1a0cb99)
---
gcc/config/i386/i386-builtins.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/gcc/config/i386/i386-builtins.c b/gcc/config/i386/i386-builtins.c
index 128bd39816c..59575aea795 100644
--- a/gcc/config/i386/i386-builtins.c
+++ b/gcc/config/i386/i386-builtins.c
@@ -2236,7 +2236,11 @@ fold_builtin_cpu (tree fndecl, tree *args)
/* Return __cpu_model.__cpu_features[0] & field_val */
final = build2 (BIT_AND_EXPR, unsigned_type_node, array_elt,
build_int_cstu (unsigned_type_node, field_val));
- return build1 (CONVERT_EXPR, integer_type_node, final);
+ if (isa_names_table[i].feature == (INT_TYPE_SIZE - 1))
+ return build2 (NE_EXPR, integer_type_node, final,
+ build_int_cst (unsigned_type_node, 0));
+ else
+ return build1 (CONVERT_EXPR, integer_type_node, final);
}
gcc_unreachable ();
}
--
2.34.1
