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https://github.com/Stichting-MINIX-Research-Foundation/pkgsrc-ng.git
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64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
$NetBSD$
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--- gcc/loop-doloop.c.orig Mon Jul 19 09:58:53 2010
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+++ gcc/loop-doloop.c
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@@ -334,14 +334,11 @@ add_test (rtx cond, edge *e, basic_block dest)
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describes the loop, DESC describes the number of iterations of the
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loop, and DOLOOP_INSN is the low-overhead looping insn to emit at the
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end of the loop. CONDITION is the condition separated from the
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- DOLOOP_SEQ. COUNT is the number of iterations of the LOOP.
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- ZERO_EXTEND_P says to zero extend COUNT after the increment of it to
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- word_mode from FROM_MODE. */
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+ DOLOOP_SEQ. COUNT is the number of iterations of the LOOP. */
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static void
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doloop_modify (struct loop *loop, struct niter_desc *desc,
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- rtx doloop_seq, rtx condition, rtx count,
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- bool zero_extend_p, enum machine_mode from_mode)
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+ rtx doloop_seq, rtx condition, rtx count)
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{
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rtx counter_reg;
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rtx tmp, noloop = NULL_RTX;
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@@ -415,12 +412,8 @@ doloop_modify (struct loop *loop, struct niter_desc *d
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}
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if (increment_count)
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- count = simplify_gen_binary (PLUS, from_mode, count, const1_rtx);
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+ count = simplify_gen_binary (PLUS, mode, count, const1_rtx);
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- if (zero_extend_p)
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- count = simplify_gen_unary (ZERO_EXTEND, word_mode,
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- count, from_mode);
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-
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/* Insert initialization of the count register into the loop header. */
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start_sequence ();
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tmp = force_operand (count, counter_reg);
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@@ -555,7 +548,6 @@ doloop_optimize (struct loop *loop)
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struct niter_desc *desc;
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unsigned word_mode_size;
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unsigned HOST_WIDE_INT word_mode_max;
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- bool zero_extend_p = false;
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if (dump_file)
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fprintf (dump_file, "Doloop: Processing loop %d.\n", loop->num);
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@@ -630,7 +622,8 @@ doloop_optimize (struct loop *loop)
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{
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if (word_mode_size > GET_MODE_BITSIZE (mode))
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{
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- zero_extend_p = true;
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+ count = simplify_gen_unary (ZERO_EXTEND, word_mode,
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+ count, mode);
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iterations = simplify_gen_unary (ZERO_EXTEND, word_mode,
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iterations, mode);
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iterations_max = simplify_gen_unary (ZERO_EXTEND, word_mode,
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@@ -674,8 +667,7 @@ doloop_optimize (struct loop *loop)
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return false;
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}
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- doloop_modify (loop, desc, doloop_seq, condition, count,
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- zero_extend_p, mode);
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+ doloop_modify (loop, desc, doloop_seq, condition, count);
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return true;
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}
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