[Bug target/53724] ICE when using the 'd' asm operand modifier

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53724

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> 2012-06-20 12:38:12 
UTC ---
Something like this

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index e2f5740..0daf601 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -13879,7 +13879,8 @@ print_reg (rtx x, int code, FILE *file)
     case 32:
       if (SSE_REG_P (x))
     {
-      gcc_assert (!duplicated);
+      if (duplicated)
+        error ("unsupported `d' specifier on AVX register");
       putc ('y', file);
       fputs (hi_reg_name[REGNO (x)] + 1, file);
       return;