(cse_insn): Don't call force_const_mem on (const (truncate)).

From-SVN: r8231

(cse_insn): Don't call force_const_mem on (const (truncate)).
From-SVN: r8231
1bbd065b · Richard Kenner · ffa8bd9b · 1bbd065b
Commit 1bbd065b authored 30 years ago by Richard Kenner
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gcc/cse.c
+5 -1

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--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -6724,7 +6724,11 @@ cse_insn (insn, in_libcall_block)

 	  else if (constant_pool_entries_cost
 		   && CONSTANT_P (trial)
-		   && (src_folded == 0 || GET_CODE (src_folded) != MEM)
+		   && ! (GET_CODE (trial) == CONST
+			 && GET_CODE (XEXP (trial, 0)) == TRUNCATE)
+		   && (src_folded == 0
+		       || (GET_CODE (src_folded) != MEM
+			   && ! src_folded_force_flag))
 		   && GET_MODE_CLASS (mode) != MODE_CC)
 	    {
 	      src_folded_force_flag = 1;