The following patch fixes ICE for
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82444
The patch was successfully bootstrapped on x86_64.
Committed as rev. 257254.
Index: ChangeLog
===================================================================
--- ChangeLog (revision 257252)
+++ ChangeLog (working copy)
@@ -1,3 +1,8 @@
+2018-01-31 Vladimir Makarov <vmaka...@redhat.com>
+
+ PR target/82444
+ * ira.c (ira_init_register_move_cost): Remove assert.
+
2018-01-31 Eric Botcazou <ebotca...@adacore.com>
PR rtl-optimization/84071
Index: testsuite/ChangeLog
===================================================================
--- testsuite/ChangeLog (revision 257252)
+++ testsuite/ChangeLog (working copy)
@@ -1,3 +1,8 @@
+2018-01-31 Vladimir Makarov <vmaka...@redhat.com>
+
+ PR target/82444
+ * gcc.target/i386/pr82444.c: New.
+
2018-01-31 Paolo Carlini <paolo.carl...@oracle.com>
PR c++/84092
Index: ira.c
===================================================================
--- ira.c (revision 257157)
+++ ira.c (working copy)
@@ -1578,7 +1578,8 @@ ira_init_register_move_cost (machine_mod
ira_assert (ira_register_move_cost[mode] == NULL
&& ira_may_move_in_cost[mode] == NULL
&& ira_may_move_out_cost[mode] == NULL);
- ira_assert (have_regs_of_mode[mode]);
+ /* have_regs_of_mode[mode] might be false because it might be
+ E_<mode> (see genmodes) of pseudo with <mode>. */
for (cl1 = 0; cl1 < N_REG_CLASSES; cl1++)
for (cl2 = 0; cl2 < N_REG_CLASSES; cl2++)
{
Index: testsuite/gcc.target/i386/pr82444.c
===================================================================
--- testsuite/gcc.target/i386/pr82444.c (nonexistent)
+++ testsuite/gcc.target/i386/pr82444.c (working copy)
@@ -0,0 +1,5 @@
+/* { dg-do compile { target { ia32 } } } */
+/* { dg-options "-march=athlon" } */
+
+__float128 a;
+void b () { __asm__("" : "+r"(a)); } /* { dg-error "inconsistent operand constraints in an" } */
