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authorgeoffk <geoffk@138bc75d-0d04-0410-961f-82ee72b054a4>2002-02-27 20:27:38 +0000
committergeoffk <geoffk@138bc75d-0d04-0410-961f-82ee72b054a4>2002-02-27 20:27:38 +0000
commit80cf4c7521a04819b7028446509f974047b9dbe7 (patch)
treeb762982ce5c2a3b044bdf03acbf6d58443a01429
parenta8ef833a8a490084f1d0f250b50dbdc95a06ba30 (diff)
downloadgcc-80cf4c7521a04819b7028446509f974047b9dbe7.tar.gz
Index: ChangeLog
* expmed.c (expand_shift): Correctly test for low part of a subreg. Index: testsuite/ChangeLog * gcc.c-torture/execute/20020225-2.c: New test. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50114 138bc75d-0d04-0410-961f-82ee72b054a4
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/expmed.c2
-rw-r--r--gcc/testsuite/ChangeLog4
-rw-r--r--gcc/testsuite/gcc.c-torture/execute/20020225-2.c19
4 files changed, 29 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7722a6d3332..42fd508ba72 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2002-02-27 Geoffrey Keating <geoffk@redhat.com>
+
+ * expmed.c (expand_shift): Correctly test for low part of a
+ subreg.
+
2002-02-27 Ulrich Weigand <uweigand@de.ibm.com>
* config/s390/s390.c (s390_chunkify_pool): Do not confuse
diff --git a/gcc/expmed.c b/gcc/expmed.c
index b3d94c2376f..46007a30330 100644
--- a/gcc/expmed.c
+++ b/gcc/expmed.c
@@ -1913,7 +1913,7 @@ expand_shift (code, mode, shifted, amount, target, unsignedp)
op1 = GEN_INT ((unsigned HOST_WIDE_INT) INTVAL (op1)
% GET_MODE_BITSIZE (mode));
else if (GET_CODE (op1) == SUBREG
- && SUBREG_BYTE (op1) == 0)
+ && subreg_lowpart_p (op1))
op1 = SUBREG_REG (op1);
}
#endif
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index b2820d62bab..d6b70d39409 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2002-02-27 Geoffrey Keating <geoffk@redhat.com>
+
+ * gcc.c-torture/execute/20020225-2.c: New test.
+
2002-02-27 Zack Weinberg <zack@codesourcery.com>
* gcc.c-torture/execute/920730-1t.c,
diff --git a/gcc/testsuite/gcc.c-torture/execute/20020225-2.c b/gcc/testsuite/gcc.c-torture/execute/20020225-2.c
new file mode 100644
index 00000000000..5c91596096b
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20020225-2.c
@@ -0,0 +1,19 @@
+static int
+test(int x)
+{
+ union
+ {
+ int i;
+ double d;
+ } a;
+ a.d = 0;
+ a.i = 1;
+ return x >> a.i;
+}
+
+int main(void)
+{
+ if (test (5) != 2)
+ abort ();
+ exit (0);
+}