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author | Roger Sayle <roger@nextmovesoftware.com> | 2016-05-31 11:30:56 +0000 |
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committer | Roger Sayle <sayle@gcc.gnu.org> | 2016-05-31 11:30:56 +0000 |
commit | a1293f402a25801d03a58312b06b65c33702c726 (patch) | |
tree | e4795973441e52b0a0b748fb08728e4962eb277f /libjava | |
parent | 051154a1f6be0f597b7da235d6fe13463e7629be (diff) | |
download | gcc-a1293f402a25801d03a58312b06b65c33702c726.zip gcc-a1293f402a25801d03a58312b06b65c33702c726.tar.gz gcc-a1293f402a25801d03a58312b06b65c33702c726.tar.bz2 |
builtins.c (java_builtins): Use popcount* and bswap* builtins to implement bitCount() and reverseBytes()...
2016-05-31 Roger Sayle <roger@nextmovesoftware.com>
gcc/java:
* builtins.c (java_builtins): Use popcount* and bswap* builtins to
implement bitCount() and reverseBytes() methods in java.lang.Integer
and friends.
(initialize_builtins): Annotate math builtins with ECF_LEAF. Call
define_builtin for the new popcount* and bswap* builtins.
libjava:
* testsuite/libjava.lang/BuiltinBitCount.java: New test case.
* testsuite/libjava.lang/BuiltinReverseBytes.java: Likewise.
From-SVN: r236919
Diffstat (limited to 'libjava')
-rw-r--r-- | libjava/ChangeLog | 5 | ||||
-rw-r--r-- | libjava/testsuite/libjava.lang/BuiltinBitCount.jar | bin | 0 -> 1033 bytes | |||
-rw-r--r-- | libjava/testsuite/libjava.lang/BuiltinBitCount.java | 51 | ||||
-rw-r--r-- | libjava/testsuite/libjava.lang/BuiltinBitCount.out | 0 | ||||
-rw-r--r-- | libjava/testsuite/libjava.lang/BuiltinReverseBytes.jar | bin | 0 -> 1126 bytes | |||
-rw-r--r-- | libjava/testsuite/libjava.lang/BuiltinReverseBytes.java | 62 | ||||
-rw-r--r-- | libjava/testsuite/libjava.lang/BuiltinReverseBytes.out | 0 |
7 files changed, 118 insertions, 0 deletions
diff --git a/libjava/ChangeLog b/libjava/ChangeLog index 596fc052..0a28305 100644 --- a/libjava/ChangeLog +++ b/libjava/ChangeLog @@ -1,3 +1,8 @@ +2016-05-31 Roger Sayle <roger@nextmovesoftware.com> + + * testsuite/libjava.lang/BuiltinBitCount.java: New test case. + * testsuite/libjava.lang/BuiltinReverseBytes.java: Likewise. + 2016-04-30 Oleg Endo <olegendo@gcc.gnu.org> * classpath/config.guess: Revert r235676. diff --git a/libjava/testsuite/libjava.lang/BuiltinBitCount.jar b/libjava/testsuite/libjava.lang/BuiltinBitCount.jar Binary files differnew file mode 100644 index 0000000..0f6591c --- /dev/null +++ b/libjava/testsuite/libjava.lang/BuiltinBitCount.jar diff --git a/libjava/testsuite/libjava.lang/BuiltinBitCount.java b/libjava/testsuite/libjava.lang/BuiltinBitCount.java new file mode 100644 index 0000000..bcafd31 --- /dev/null +++ b/libjava/testsuite/libjava.lang/BuiltinBitCount.java @@ -0,0 +1,51 @@ +class BuiltinBitCount +{ + public static int popcount(int x) + { + return Integer.bitCount(x); + } + + public static int popcountl(long x) + { + return Long.bitCount(x); + } + + public static void main(String[] args) + { + if (Integer.bitCount(0) != 0) + throw new Error(); + if (Integer.bitCount(8) != 1) + throw new Error(); + if (Integer.bitCount(123456) != 6) + throw new Error(); + if (Integer.bitCount(-1) != 32) + throw new Error(); + + if (Long.bitCount(0) != 0) + throw new Error(); + if (Long.bitCount(8) != 1) + throw new Error(); + if (Long.bitCount(123456) != 6) + throw new Error(); + if (Long.bitCount(-1) != 64) + throw new Error(); + + if (popcount(0) != 0) + throw new Error(); + if (popcount(8) != 1) + throw new Error(); + if (popcount(123456) != 6) + throw new Error(); + if (popcount(-1) != 32) + throw new Error(); + + if (popcountl(0) != 0) + throw new Error(); + if (popcountl(8) != 1) + throw new Error(); + if (popcountl(123456) != 6) + throw new Error(); + if (popcountl(-1) != 64) + throw new Error(); + } +} diff --git a/libjava/testsuite/libjava.lang/BuiltinBitCount.out b/libjava/testsuite/libjava.lang/BuiltinBitCount.out new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/libjava/testsuite/libjava.lang/BuiltinBitCount.out diff --git a/libjava/testsuite/libjava.lang/BuiltinReverseBytes.jar b/libjava/testsuite/libjava.lang/BuiltinReverseBytes.jar Binary files differnew file mode 100644 index 0000000..283a178 --- /dev/null +++ b/libjava/testsuite/libjava.lang/BuiltinReverseBytes.jar diff --git a/libjava/testsuite/libjava.lang/BuiltinReverseBytes.java b/libjava/testsuite/libjava.lang/BuiltinReverseBytes.java new file mode 100644 index 0000000..0d2e332 --- /dev/null +++ b/libjava/testsuite/libjava.lang/BuiltinReverseBytes.java @@ -0,0 +1,62 @@ +class BuiltinReverseBytes +{ + public static short bswap16(short x) + { + return Short.reverseBytes(x); + } + + public static int bswap32(int x) + { + return Integer.reverseBytes(x); + } + + public static long bswap64(long x) + { + return Long.reverseBytes(x); + } + + public static void main(String[] args) + { + if (Short.reverseBytes((short)0) != (short)0) + throw new Error(); + if (Short.reverseBytes((short)0x1234) != (short)0x3412) + throw new Error(); + if (Short.reverseBytes((short)-1) != (short)-1) + throw new Error(); + + if (Integer.reverseBytes(0) != 0) + throw new Error(); + if (Integer.reverseBytes(0x12345678) != 0x78563412) + throw new Error(); + if (Integer.reverseBytes(-1) != -1) + throw new Error(); + + if (Long.reverseBytes(0L) != 0L) + throw new Error(); + if (Long.reverseBytes(0x123456789abcde0fL) != 0x0fdebc9a78563412L) + throw new Error(); + if (Long.reverseBytes(-1L) != -1L) + throw new Error(); + + if (bswap16((short)0) != (short)0) + throw new Error(); + if (bswap16((short)0x1234) != (short)0x3412) + throw new Error(); + if (bswap16((short)-1) != (short)-1) + throw new Error(); + + if (bswap32(0) != 0) + throw new Error(); + if (bswap32(0x12345678) != 0x78563412) + throw new Error(); + if (bswap32(-1) != -1) + throw new Error(); + + if (bswap64(0L) != 0L) + throw new Error(); + if (bswap64(0x123456789abcde0fL) != 0x0fdebc9a78563412L) + throw new Error(); + if (bswap64(-1L) != -1L) + throw new Error(); + } +} diff --git a/libjava/testsuite/libjava.lang/BuiltinReverseBytes.out b/libjava/testsuite/libjava.lang/BuiltinReverseBytes.out new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/libjava/testsuite/libjava.lang/BuiltinReverseBytes.out |