50 lines
1.5 KiB
Diff
50 lines
1.5 KiB
Diff
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From c2694d3739d90ea3350b42252638b604a2c122b7 Mon Sep 17 00:00:00 2001
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From: Claudiu Zissulescu <claziss@gmail.com>
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Date: Tue, 7 Nov 2017 20:16:41 +0200
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Subject: [PATCH] [FIX][ZOL] fix checking for jumps
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Signed-off-by: Evgeniy Didin <didin@synopsys.com>
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---
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gcc/config/arc/arc.c | 3 ++-
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gcc/testsuite/gcc.target/arc/loop-4.c | 14 ++++++++++++++
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2 files changed, 16 insertions(+), 1 deletion(-)
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create mode 100644 gcc/testsuite/gcc.target/arc/loop-4.c
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diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
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index 22eeb34a371..5d367499d03 100644
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--- a/gcc/config/arc/arc.c
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+++ b/gcc/config/arc/arc.c
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@@ -7505,7 +7505,8 @@ hwloop_optimize (hwloop_info loop)
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&& INSN_P (last_insn)
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&& (JUMP_P (last_insn) || CALL_P (last_insn)
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|| GET_CODE (PATTERN (last_insn)) == SEQUENCE
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- || JUMP_P (prev_active_insn (last_insn))
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+ || (prev_active_insn (last_insn)
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+ && JUMP_P (prev_active_insn (last_insn)))
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/* At this stage we can have (insn (clobber (mem:BLK
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(reg)))) instructions, ignpre them. */
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|| (GET_CODE (PATTERN (last_insn)) != CLOBBER
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diff --git a/gcc/testsuite/gcc.target/arc/loop-4.c b/gcc/testsuite/gcc.target/arc/loop-4.c
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new file mode 100644
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index 00000000000..99a93a74d1e
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--- /dev/null
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+++ b/gcc/testsuite/gcc.target/arc/loop-4.c
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@@ -0,0 +1,14 @@
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+/* { dg-do assemble } */
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+/* { dg-do compile } */
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+/* { dg-options "-Os" } */
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+
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+
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+void fn1(void *p1, int p2, int p3)
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+{
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+ char *d = p1;
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+ do
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+ *d++ = p2;
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+ while (--p3);
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+}
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+
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+/* { dg-final { scan-assembler "lp_count" } } */
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--
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2.11.0
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