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(emit_push_insn): Clobber register only if it is non-zero.

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From-SVN: r11658
This commit is contained in:
Jim Wilson 1996-04-03 14:30:07 -08:00
parent d7083c81f6
commit 22745c7e7a
1 changed files with 1 additions and 1 deletions
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gcc/expr.c
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@ -2353,7 +2353,7 @@ emit_push_insn (x, mode, type, size, align, partial, reg, extra,
/* If we're placing part of X into a register and part of X onto
the stack, indicate that the entire register is clobbered to
keep flow from thinking the unused part of the register is live. */
if (partial)
if (partial > 0 && reg != 0)
emit_insn (gen_rtx (CLOBBER, VOIDmode, reg));
/* Invert direction if stack is post-update. */