diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c
index 6d15bf7..3dda9fb 100644
--- a/gcc/config/alpha/alpha.c
+++ b/gcc/config/alpha/alpha.c
@@ -5451,6 +5451,8 @@ alpha_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value)
   chain_value = convert_memory_address (Pmode, chain_value);
 #endif
 
+#define HWI_HEX2(X,Y)	(((HOST_WIDE_INT)0x ## X ## u) | 0x ## Y ## u)
+
   if (TARGET_ABI_OPEN_VMS)
     {
       const char *fnname;
@@ -5468,7 +5470,8 @@ alpha_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value)
 	 the function's procedure descriptor with certain fields zeroed IAW
 	 the VMS calling standard. This is stored in the first quadword.  */
       word1 = force_reg (DImode, gen_const_mem (DImode, fnaddr));
-      word1 = expand_and (DImode, word1, GEN_INT (0xffff0fff0000fff0), NULL);
+      word1 = expand_and (DImode, word1,
+			  GEN_INT (HWI_HEX2(ffff0fff,0000fff0)), NULL);
     }
   else
     {
@@ -5479,10 +5482,12 @@ alpha_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value)
 	    nop
 	 We don't bother setting the HINT field of the jump; the nop
 	 is merely there for padding.  */
-      word1 = GEN_INT (0xa77b0010a43b0018);
-      word2 = GEN_INT (0x47ff041f6bfb0000);
+      word1 = GEN_INT (HWI_HEX2 (a77b0010,a43b0018));
+      word2 = GEN_INT (HWI_HEX2 (47ff041f,6bfb0000));
     }
 
+#undef HWI_HEX2
+
   /* Store the first two words, as computed above.  */
   mem = adjust_address (m_tramp, DImode, 0);
   emit_move_insn (mem, word1);