gcc/

	* config/mips/mips.h (ISA_HAS_WSBH): Define.
	* config/mips/mips.md (UNSPEC_WSBH, UNSPEC_DSBH, UNSPEC_DSHD): New
	constants.
	(bswaphi2, bswapsi2, bswapdi2, wsbh, dsbh, dshd): New patterns.

gcc/testsuite/
	* gcc.target/mips/bswap-1.c, gcc.target/mips/bswap-2.c,
	gcc.target/mips/bswap-3.c, gcc.target/mips/bswap-4.c,
	gcc.target/mips/bswap-5.c, gcc.target/mips/bswap-6.c: New tests.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@203870 138bc75d-0d04-0410-961f-82ee72b054a4

6 files changed, 75 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/mips/bswap-1.c b/gcc/testsuite/gcc.target/mips/bswap-1.c
new file mode 100644
index 00000000000..24016f26931
--- /dev/null
+++ b/gcc/testsuite/gcc.target/mips/bswap-1.c
@@ -0,0 +1,10 @@
+/* { dg-options "isa_rev>=2" } */
+/* { dg-skip-if "bswap recognition needs expensive optimizations" { *-*-* } { "-O0" "-O1" } { "" } } */
+
+NOMIPS16 unsigned short
+foo (unsigned short x)
+{
+  return ((x << 8) & 0xff00) | ((x >> 8) & 0xff);
+}
+
+/* { dg-final { scan-assembler "\twsbh\t" } } */
diff --git a/gcc/testsuite/gcc.target/mips/bswap-2.c b/gcc/testsuite/gcc.target/mips/bswap-2.c
new file mode 100644
index 00000000000..e0ca496b6d1
--- /dev/null
+++ b/gcc/testsuite/gcc.target/mips/bswap-2.c
@@ -0,0 +1,9 @@
+/* { dg-options "isa_rev>=2" } */
+
+NOMIPS16 unsigned short
+foo (unsigned short x)
+{
+  return __builtin_bswap16 (x);
+}
+
+/* { dg-final { scan-assembler "\twsbh\t" } } */
diff --git a/gcc/testsuite/gcc.target/mips/bswap-3.c b/gcc/testsuite/gcc.target/mips/bswap-3.c
new file mode 100644
index 00000000000..5d2086fd324
--- /dev/null
+++ b/gcc/testsuite/gcc.target/mips/bswap-3.c
@@ -0,0 +1,14 @@
+/* { dg-options "isa_rev>=2" } */
+/* { dg-skip-if "bswap recognition needs expensive optimizations" { *-*-* } { "-O0" "-O1" } { "" } } */
+
+NOMIPS16 unsigned int
+foo (unsigned int x)
+{
+  return (((x << 24) & 0xff000000)
+	  | ((x << 8) & 0xff0000)
+	  | ((x >> 8) & 0xff00)
+	  | ((x >> 24) & 0xff));
+}
+
+/* { dg-final { scan-assembler "\twsbh\t" } } */
+/* { dg-final { scan-assembler "\tror\t" } } */
diff --git a/gcc/testsuite/gcc.target/mips/bswap-4.c b/gcc/testsuite/gcc.target/mips/bswap-4.c
new file mode 100644
index 00000000000..ac37a011440
--- /dev/null
+++ b/gcc/testsuite/gcc.target/mips/bswap-4.c
@@ -0,0 +1,10 @@
+/* { dg-options "isa_rev>=2" } */
+
+NOMIPS16 unsigned int
+foo (unsigned int x)
+{
+  return __builtin_bswap32 (x);
+}
+
+/* { dg-final { scan-assembler "\twsbh\t" } } */
+/* { dg-final { scan-assembler "\tror\t" } } */
diff --git a/gcc/testsuite/gcc.target/mips/bswap-5.c b/gcc/testsuite/gcc.target/mips/bswap-5.c
new file mode 100644
index 00000000000..45520e4ab85
--- /dev/null
+++ b/gcc/testsuite/gcc.target/mips/bswap-5.c
@@ -0,0 +1,20 @@
+/* { dg-options "isa_rev>=2 -mgp64" } */
+/* { dg-skip-if "bswap recognition needs expensive optimizations" { *-*-* } { "-O0" "-O1" } { "" } } */
+
+typedef unsigned long long uint64_t;
+
+NOMIPS16 uint64_t
+foo (uint64_t x)
+{
+  return (((x << 56) & 0xff00000000000000ull)
+	  | ((x << 40) & 0xff000000000000ull)
+	  | ((x << 24) & 0xff0000000000ull)
+	  | ((x << 8) & 0xff00000000ull)
+	  | ((x >> 8) & 0xff000000)
+	  | ((x >> 24) & 0xff0000)
+	  | ((x >> 40) & 0xff00)
+	  | ((x >> 56) & 0xff));
+}
+
+/* { dg-final { scan-assembler "\tdsbh\t" } } */
+/* { dg-final { scan-assembler "\tdshd\t" } } */
diff --git a/gcc/testsuite/gcc.target/mips/bswap-6.c b/gcc/testsuite/gcc.target/mips/bswap-6.c
new file mode 100644
index 00000000000..1145357fef1
--- /dev/null
+++ b/gcc/testsuite/gcc.target/mips/bswap-6.c
@@ -0,0 +1,12 @@
+/* { dg-options "isa_rev>=2 -mgp64" } */
+
+typedef unsigned long long uint64_t;
+
+NOMIPS16 uint64_t
+foo (uint64_t x)
+{
+  return __builtin_bswap64 (x);
+}
+
+/* { dg-final { scan-assembler "\tdsbh\t" } } */
+/* { dg-final { scan-assembler "\tdshd\t" } } */