re PR inline-asm/85022 (internal compiler error: in write_dependence_p, at alias...

	PR inline-asm/85022
	* emit-rtl.c (init_emit_regs): Indicate that VOIDmode MEMs don't have
	known size by default.

From-SVN: r258823

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2fd85d7..980768a 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2018-03-23  Jakub Jelinek  <jakub@redhat.com>
+
+       PR inline-asm/85022
+       * emit-rtl.c (init_emit_regs): Indicate that VOIDmode MEMs don't have
+       known size by default.
+
 2018-03-23  Vladimir Makarov  <vmakarov@redhat.com>
 
        PR inline-asm/85030

diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index 4dce18d..613030f 100644 (file)
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -6152,7 +6152,7 @@ init_emit_regs (void)
       attrs = ggc_cleared_alloc<mem_attrs> ();
       attrs->align = BITS_PER_UNIT;
       attrs->addrspace = ADDR_SPACE_GENERIC;
-      if (mode != BLKmode)
+      if (mode != BLKmode && mode != VOIDmode)
        {
          attrs->size_known_p = true;
          attrs->size = GET_MODE_SIZE (mode);