xtensa: fix PR target/82181

2017-09-11  Max Filippov  <jcmvbkbc@gmail.com>
gcc/
	* config/xtensa/xtensa.c (xtensa_mem_offset): Check that both
	words of E_DImode object are reachable by xtensa_uimm8x4 access.

From-SVN: r251986

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index baa6784..bcbd2b8 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2017-09-11  Max Filippov  <jcmvbkbc@gmail.com>
+
+       PR target/82181
+       * config/xtensa/xtensa.c (xtensa_mem_offset): Check that both
+       words of E_DImode object are reachable by xtensa_uimm8x4 access.
+
 2017-09-11  Vidya Praveen  <vidyapraveen@arm.com>
 
        Revert r251800 and r251799.

diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
index f7ce084..0f84cf3 100644 (file)
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -615,6 +615,7 @@ xtensa_mem_offset (unsigned v, machine_mode mode)
     case E_HImode:
       return xtensa_uimm8x2 (v);
 
+    case E_DImode:
     case E_DFmode:
       return (xtensa_uimm8x4 (v) && xtensa_uimm8x4 (v + 4));