Treat ZERO_EXTEND like SIGN_EXTEND in emit_unop_insn

From-SVN: r13262

Treat ZERO_EXTEND like SIGN_EXTEND in emit_unop_insn
From-SVN: r13262
bd8c4b14 · Ian Lance Taylor · 8e90e273 · bd8c4b14
Commit bd8c4b14 authored Dec 10, 1996 by Ian Lance Taylor
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gcc/optabs.c
+4 -3

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--- a/gcc/optabs.c
+++ b/gcc/optabs.c
@@ -2388,9 +2388,10 @@ emit_unop_insn (icode, target, op0, code)

  op0 = protect_from_queue (op0, 0);

-  /* Sign extension from memory is often done specially on RISC
-     machines, so forcing into a register here can pessimize code.  */
-  if (flag_force_mem && code != SIGN_EXTEND)
+  /* Sign and zero extension from memory is often done specially on
+     RISC machines, so forcing into a register here can pessimize
+     code.  */
+  if (flag_force_mem && code != SIGN_EXTEND && code != ZERO_EXTEND)
    op0 = force_not_mem (op0);

  /* Now, if insn does not accept our operands, put them into pseudos.  */