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-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/config/i386/i386.c3
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gcc.target/i386/pr79729.c8
4 files changed, 21 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 17acce5..135f1f6 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2017-02-28 Jakub Jelinek <jakub@redhat.com>
+
+ PR target/79729
+ * config/i386/i386.c (ix86_print_operand) <case 'R'>: Replace
+ gcc_unreachable with output_operand_lossage.
+
2017-02-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/79740
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 33ad0f1..b35b56c 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -18234,7 +18234,8 @@ ix86_print_operand (FILE *file, rtx x, int code)
fputs ("{rz-sae}", file);
break;
default:
- gcc_unreachable ();
+ output_operand_lossage ("operand is not a specific integer, "
+ "invalid operand code 'R'");
}
if (ASSEMBLER_DIALECT == ASM_ATT)
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index a09eb28..dec6d0d 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2017-02-28 Jakub Jelinek <jakub@redhat.com>
+
+ PR target/79729
+ * gcc.target/i386/pr79729.c: New test.
+
2017-02-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/79740
diff --git a/gcc/testsuite/gcc.target/i386/pr79729.c b/gcc/testsuite/gcc.target/i386/pr79729.c
new file mode 100644
index 0000000..4e6f500
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr79729.c
@@ -0,0 +1,8 @@
+/* PR target/79729 */
+/* { dg-do compile } */
+
+void
+foo (int x)
+{
+ __asm__ volatile ("# %R0" : : "n" (129)); /* { dg-error "invalid operand code" } */
+}