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[PATCH 08/10] gcc/arc: Mask integer 'L' operands to 32-bit
- From: Andrew Burgess <andrew dot burgess at embecosm dot com>
- To: gcc-patches at gcc dot gnu dot org
- Cc: noamca at mellanox dot com, Claudiu dot Zissulescu at synopsys dot com, Andrew Burgess <andrew dot burgess at embecosm dot com>
- Date: Fri, 4 Mar 2016 13:25:40 +0000
- Subject: [PATCH 08/10] gcc/arc: Mask integer 'L' operands to 32-bit
- Authentication-results: sourceware.org; auth=none
- References: <cover dot 1457097757 dot git dot andrew dot burgess at embecosm dot com>
- References: <cover dot 1457097757 dot git dot andrew dot burgess at embecosm dot com>
When formatting 'L' operands (least significant word) only print
32-bits, don't sign extend to 64-bits.
This commit could really be applied directly to the current GCC trunk,
however, the only test I have for this issue right now relies on the
nps400 bitops support.
gcc/ChangeLog:
* config/arc/arc.c (arc_print_operand): Print integer 'L' operands
as 32-bits.
gcc/testsuite/ChangeLog:
* gcc.target/arc/movh_cl-1.c: New file.
---
gcc/ChangeLog.NPS400 | 6 ++++++
gcc/config/arc/arc.c | 10 ++++------
gcc/testsuite/ChangeLog.NPS400 | 4 ++++
gcc/testsuite/gcc.target/arc/movh_cl-1.c | 27 +++++++++++++++++++++++++++
4 files changed, 41 insertions(+), 6 deletions(-)
create mode 100644 gcc/testsuite/gcc.target/arc/movh_cl-1.c
diff --git a/gcc/ChangeLog.NPS400 b/gcc/ChangeLog.NPS400
index 8229d67..146370c 100644
--- a/gcc/ChangeLog.NPS400
+++ b/gcc/ChangeLog.NPS400
@@ -1,3 +1,9 @@
+2016-01-19 Joern Rennecke <joern.rennecke@embecosm.com>
+ Andrew Burgess <andrew.burgess@embecosm.com>
+
+ * config/arc/arc.c (arc_print_operand): Print integer 'L' operands
+ as 32-bits.
+
2013-02-19 Joern Rennecke <joern.rennecke@embecosm.com>
Andrew Burgess <andrew.burgess@embecosm.com>
diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
index a75f200..dc885d3 100644
--- a/gcc/config/arc/arc.c
+++ b/gcc/config/arc/arc.c
@@ -3176,18 +3176,16 @@ arc_print_operand (FILE *file, rtx x, int code)
else if (GET_CODE (x) == CONST_INT
|| GET_CODE (x) == CONST_DOUBLE)
{
- rtx first, second;
+ rtx first, second, word;
split_double (x, &first, &second);
if((WORDS_BIG_ENDIAN) == 0)
- fprintf (file, "0x%08" PRIx64,
- code == 'L' ? INTVAL (first) : INTVAL (second));
+ word = (code == 'L' ? first : second);
else
- fprintf (file, "0x%08" PRIx64,
- code == 'L' ? INTVAL (second) : INTVAL (first));
-
+ word = (code == 'L' ? second : first);
+ fprintf (file, "0x%08" PRIx32, ((uint32_t) INTVAL (word)));
}
else
output_operand_lossage ("invalid operand to %%H/%%L code");
diff --git a/gcc/testsuite/ChangeLog.NPS400 b/gcc/testsuite/ChangeLog.NPS400
index 22dec32..d658bd9 100644
--- a/gcc/testsuite/ChangeLog.NPS400
+++ b/gcc/testsuite/ChangeLog.NPS400
@@ -1,3 +1,7 @@
+2016-01-19 Andrew Burgess <andrew.burgess@embecosm.com>
+
+ * gcc.target/arc/movh_cl-1.c: New file.
+
2013-02-19 Joern Rennecke <joern.rennecke@embecosm.com>
Andrew Burgess <andrew.burgess@embecosm.com>
diff --git a/gcc/testsuite/gcc.target/arc/movh_cl-1.c b/gcc/testsuite/gcc.target/arc/movh_cl-1.c
new file mode 100644
index 0000000..8fbea7e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arc/movh_cl-1.c
@@ -0,0 +1,27 @@
+/* { dg-do compile { target arc*-mellanox-* } } */
+/* { dg-options "-O2 -mbitops" } */
+
+struct thing
+{
+ union
+ {
+ int raw;
+ struct
+ {
+ unsigned a : 1;
+ unsigned b : 1;
+ };
+ };
+};
+
+extern void func (int);
+
+void
+blah ()
+{
+ struct thing xx;
+ xx.a = xx.b = 1;
+ func (xx.raw);
+}
+
+/* { dg-final { scan-assembler "movh\.cl r\[0-9\]+,0xc0000000>>16" } } */
--
2.6.4