* patch for PR88349
@ 2018-12-07 16:12 Vladimir Makarov
0 siblings, 0 replies; only message in thread
From: Vladimir Makarov @ 2018-12-07 16:12 UTC (permalink / raw)
To: gcc-patches
[-- Attachment #1: Type: text/plain, Size: 170 bytes --]
The following patch fixes
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88349
The patch is simple and therefore I checked it only on x86-64.
Committed as rev. 226894.
[-- Attachment #2: pr88349.patch --]
[-- Type: text/x-patch, Size: 2207 bytes --]
Index: ChangeLog
===================================================================
--- ChangeLog (revision 266893)
+++ ChangeLog (working copy)
@@ -1,3 +1,9 @@
+2018-12-07 Vladimir Makarov <vmakarov@redhat.com>
+
+ PR rtl-optimization/88349
+ * ira-costs.c (record_operand_costs): Check bigger reg class on
+ NO_REGS.
+
2018-12-07 Richard Sandiford <richard.sandiford@arm.com>
* config/aarch64/aarch64-sve.md (*mul<mode>3, *v<optab><mode>3):
Index: ira-costs.c
===================================================================
--- ira-costs.c (revision 266862)
+++ ira-costs.c (working copy)
@@ -1327,8 +1327,9 @@ record_operand_costs (rtx_insn *insn, en
fit the the hard reg class (e.g. DImode for AREG on
i386). Check this and use a bigger class to get the
right cost. */
- if (! ira_hard_reg_in_set_p (other_regno, mode,
- reg_class_contents[hard_reg_class]))
+ if (bigger_hard_reg_class != NO_REGS
+ && ! ira_hard_reg_in_set_p (other_regno, mode,
+ reg_class_contents[hard_reg_class]))
hard_reg_class = bigger_hard_reg_class;
i = regno == (int) REGNO (src) ? 1 : 0;
for (k = cost_classes_ptr->num - 1; k >= 0; k--)
Index: testsuite/ChangeLog
===================================================================
--- testsuite/ChangeLog (revision 266893)
+++ testsuite/ChangeLog (working copy)
@@ -1,3 +1,8 @@
+2018-12-07 Vladimir Makarov <vmakarov@redhat.com>
+
+ PR rtl-optimization/88349
+ * gcc.target/mips/pr88349.c: New.
+
2018-12-07 Jakub Jelinek <jakub@redhat.com>
PR c++/86669
Index: testsuite/gcc.target/mips/pr88349.c
===================================================================
--- testsuite/gcc.target/mips/pr88349.c (nonexistent)
+++ testsuite/gcc.target/mips/pr88349.c (working copy)
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+/* { dg-options "-mel -mabi=32 -march=mips64r2 -fexpensive-optimizations" } */
+/* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
+
+typedef int DI __attribute__((mode(DI)));
+typedef int SI __attribute__((mode(SI)));
+
+__attribute__((mips16)) SI
+f (SI x, SI y)
+{
+ return ((DI) x * y) >> 32;
+}
+
+/* { dg-final { scan-assembler-not "\tsw\t" } } */
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2018-12-07 16:12 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-12-07 16:12 patch for PR88349 Vladimir Makarov
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).