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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/pr71801.c22
4 files changed, 36 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8ddd878..40e34dd 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-07-11 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR target/71801
+ * config/i386/i386.c (timode_scalar_chain::fix_debug_reg_uses):
+ Don't convert TImode in debug insn.
+
2016-07-11 Bernd Edlinger <bernd.edlinger@hotmail.de>
Convert TYPE_ALIGN_OK to a TYPE_LANG_FLAG.
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 9eaf414..d190bef 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -3814,6 +3814,9 @@ timode_scalar_chain::fix_debug_reg_uses (rtx reg)
continue;
gcc_assert (GET_CODE (val) == VAR_LOCATION);
rtx loc = PAT_VAR_LOCATION_LOC (val);
+ /* It may have been converted to TImode already. */
+ if (GET_MODE (loc) == TImode)
+ continue;
gcc_assert (REG_P (loc)
&& GET_MODE (loc) == V1TImode);
/* Convert V1TImode register, which has been updated by a SET
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 1d9dc5b..4bfbba5 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2016-07-11 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR target/71801
+ * gcc.target/i386/pr71801.c: New test.
+
2016-07-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/71816
diff --git a/gcc/testsuite/gcc.target/i386/pr71801.c b/gcc/testsuite/gcc.target/i386/pr71801.c
new file mode 100644
index 0000000..6c87522
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr71801.c
@@ -0,0 +1,22 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -g" } */
+
+struct {
+ char uuid[16];
+} c;
+struct {
+ int s_uuid[6];
+} a, b;
+int bar (void);
+static int get_label_uuid(char *p1) {
+ __builtin_memcpy(p1, a.s_uuid, sizeof(a));
+ if (bar())
+ __builtin_memcpy(p1, b.s_uuid, sizeof(b));
+ return 0;
+}
+void uuidcache_addentry(char *p1) { __builtin_memcpy(&c, p1, sizeof(c)); }
+void uuidcache_init() {
+ char d[1];
+ get_label_uuid(d);
+ uuidcache_addentry(d);
+}