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patch for PR84985
- From: Vladimir Makarov <vmakarov at redhat dot com>
- To: gcc-patches <gcc-patches at gcc dot gnu dot org>
- Date: Thu, 29 Mar 2018 14:32:01 -0400
- Subject: patch for PR84985
The following patch fixes
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84985
The patch was successfully bootstrapped and tested on x86-64.
Committed as rev. 258961.
Index: ChangeLog
===================================================================
--- ChangeLog (revision 258960)
+++ ChangeLog (working copy)
@@ -1,3 +1,9 @@
+2018-03-29 Vladimir Makarov <vmakarov@redhat.com>
+
+ PR inline-asm/84985
+ * lra-constraints.c (process_alt_operands): Move setting
+ this_alternative_matches below.
+
2018-03-29 Martin Liska <mliska@suse.cz>
PR lto/84995.
Index: testsuite/ChangeLog
===================================================================
--- testsuite/ChangeLog (revision 258960)
+++ testsuite/ChangeLog (working copy)
@@ -1,3 +1,8 @@
+2018-03-29 Vladimir Makarov <vmakarov@redhat.com>
+
+ PR inline-asm/84985
+ * gcc.target/i386/pr84985.c: New.
+
2018-03-29 David Malcolm <dmalcolm@redhat.com>
PR c++/85110
Index: lra-constraints.c
===================================================================
--- lra-constraints.c (revision 258820)
+++ lra-constraints.c (working copy)
@@ -2126,7 +2126,6 @@ process_alt_operands (int only_alternati
&& curr_operand_mode[m] != curr_operand_mode[nop])
break;
- this_alternative_matches = m;
m_hregno = get_hard_regno (*curr_id->operand_loc[m], false);
/* We are supposed to match a previous operand.
If we do, we win if that one did. If we do
@@ -2228,6 +2227,7 @@ process_alt_operands (int only_alternati
else
did_match = true;
+ this_alternative_matches = m;
/* This can be fixed with reloads if the operand
we are supposed to match can be fixed with
reloads. */
Index: testsuite/gcc.target/i386/pr84985.c
===================================================================
--- testsuite/gcc.target/i386/pr84985.c (nonexistent)
+++ testsuite/gcc.target/i386/pr84985.c (working copy)
@@ -0,0 +1,6 @@
+/* { dg-do compile } */
+/* { dg-options "-O0" } */
+int main() {
+ int a;
+ asm("" : "=d"(a) : "0"(a), "0ae"(&a));
+}