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| author | Claudiu Zissulescu <claziss@synopsys.com> | 2017-11-30 15:42:01 +0100 |
|---|---|---|
| committer | Claudiu Zissulescu <claziss@gcc.gnu.org> | 2017-11-30 15:42:01 +0100 |
| commit | 5d4c34aaade8422c8289daa8a5c95fab7830de37 (patch) | |
| tree | 8c5aac5e60a55af7cbc47ecbba0fa629ed417b7e | |
| parent | 31e72f4f37b9ed02cd5e28a30c7c4b46b96ac913 (diff) | |
| download | gcc-5d4c34aaade8422c8289daa8a5c95fab7830de37.zip gcc-5d4c34aaade8422c8289daa8a5c95fab7830de37.tar.gz gcc-5d4c34aaade8422c8289daa8a5c95fab7830de37.tar.bz2 | |
[ARC] Update uses for hw-loop labels.
Make sure we mark the hw-loop labels as beeing used.
gcc/
2017-09-19 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.c (hwloop_optimize): Update hw-loop's end/start
labels number of usages.
gcc/testsuite
2017-09-19 Claudiu Zissulescu <claziss@synopsys.com>
* gcc.target/arc/loop-2.cpp: New test.
From-SVN: r255274
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/arc/arc.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/arc/loop-2.cpp | 18 |
4 files changed, 30 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ddcd983..9454909 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2017-11-30 Claudiu Zissulescu <claziss@synopsys.com> + * config/arc/arc.c (hwloop_optimize): Update hw-loop's end/start + labels number of usages. + +2017-11-30 Claudiu Zissulescu <claziss@synopsys.com> + * config/arc/arc.c (arc_cannot_substitue_mem_equiv_p): New function. (TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV_P): Define. diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c index e739d60..57ea502 100644 --- a/gcc/config/arc/arc.c +++ b/gcc/config/arc/arc.c @@ -7501,6 +7501,9 @@ hwloop_optimize (hwloop_info loop) /* Insert the loop end label before the last instruction of the loop. */ emit_label_after (end_label, loop->last_insn); + /* Make sure we mark the begining and end label as used. */ + LABEL_NUSES (loop->end_label)++; + LABEL_NUSES (loop->start_label)++; return true; } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index f12d075..1b5359d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,9 @@ 2017-11-30 Claudiu Zissulescu <claziss@synopsys.com> + * gcc.target/arc/loop-2.cpp: New test. + +2017-11-30 Claudiu Zissulescu <claziss@synopsys.com> + * gcc.target/arc/lra-1.c: New test. 2017-11-30 Will Schmidt <will_schmidt@vnet.ibm.com> diff --git a/gcc/testsuite/gcc.target/arc/loop-2.cpp b/gcc/testsuite/gcc.target/arc/loop-2.cpp new file mode 100644 index 0000000..d1dc917 --- /dev/null +++ b/gcc/testsuite/gcc.target/arc/loop-2.cpp @@ -0,0 +1,18 @@ +/* { dg-options "-O2" } * +/* { dg-do assemble } */ + +/* This file fails to assemble if we forgot to increase the number of + uses for loop's start and end labels. */ +int a, c, d; +int *b; +void fn1(int p1) { + if (d == 5) + for (int i; i < p1; ++i) + if (c) + b[i] = c; + else + int t = a = t; + else + for (int i; i < p1; ++i) + b[i] = 0; +} |