(jump_optimize): Don't optimize jumps to store-flag insns
when BLKmode values are being compared. From-SVN: r2450
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@ -1019,6 +1019,10 @@ jump_optimize (f, cross_jump, noop_moves, after_regscan)
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&& simplejump_p (temp4)
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&& JUMP_LABEL (temp4) == JUMP_LABEL (insn)))
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&& (temp4 = get_condition (insn, &temp5)) != 0
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/* We must be comparing objects whose modes imply the size.
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We could handle BLKmode if (1) emit_store_flag could
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and (2) we could find the size reliably. */
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&& GET_MODE (XEXP (temp4, 0)) != BLKmode
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/* If B is zero, OK; if A is zero, can only do (1) if we
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can reverse the condition. See if (3) applies possibly
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@ -1200,6 +1204,10 @@ jump_optimize (f, cross_jump, noop_moves, after_regscan)
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&& simplejump_p (temp3)
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&& JUMP_LABEL (temp3) == JUMP_LABEL (insn)))
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&& (temp3 = get_condition (insn, &temp4)) != 0
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/* We must be comparing objects whose modes imply the size.
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We could handle BLKmode if (1) emit_store_flag could
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and (2) we could find the size reliably. */
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&& GET_MODE (XEXP (temp3, 0)) != BLKmode
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&& can_reverse_comparison_p (temp3, insn))
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{
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rtx temp6, target = 0, seq, init_insn = 0, init = temp2;
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