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| author | Barnaby Wilks <barnaby.wilks@arm.com> | 2019-08-22 11:13:23 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2019-08-22 11:13:23 +0100 |
| commit | b20d385926d84f7daa8cd7c54f748f3d6a81bfc6 (patch) | |
| tree | b1c5502cd2b83ecc951d43912a012fbca3aa1276 /gas/testsuite | |
| parent | a051e2f3e0c1cedf4be0e1fedcd383fd203c769c (diff) | |
| download | gdb-b20d385926d84f7daa8cd7c54f748f3d6a81bfc6.zip gdb-b20d385926d84f7daa8cd7c54f748f3d6a81bfc6.tar.gz gdb-b20d385926d84f7daa8cd7c54f748f3d6a81bfc6.tar.bz2 | |
Implement a float16 directive for assembling 16 bit IEEE 754 floating point numbers for the AArch64 assembler.
The syntax of the directive is:
.float16 <0-n decimal numbers>
e.g.
.float16 0.5
.float16 10.2, NaN, 452.09
The floats will always be encoded using the binary16 format as described in the
IEEE 754-2008 standard. There is no need to support Arm's alternative half-precision
format since AArch64 only supports the IEEE format.
gas * config/tc-aarch64.c: Add float16 directive and add "Hh" to
acceptable float characters.
* doc/c-aarch64.texi: Documentation for float16 directive.
* testsuite/gas/aarch64/float16-be.d: New test.
* testsuite/gas/aarch64/float16-le.d: New test.
* testsuite/gas/aarch64/float16.s: New test.
* NEWS: Add NEWS entry.
Diffstat (limited to 'gas/testsuite')
| -rw-r--r-- | gas/testsuite/gas/aarch64/float16-be.d | 11 | ||||
| -rw-r--r-- | gas/testsuite/gas/aarch64/float16-le.d | 11 | ||||
| -rw-r--r-- | gas/testsuite/gas/aarch64/float16.s | 19 |
3 files changed, 41 insertions, 0 deletions
diff --git a/gas/testsuite/gas/aarch64/float16-be.d b/gas/testsuite/gas/aarch64/float16-be.d new file mode 100644 index 0000000..f47962f --- /dev/null +++ b/gas/testsuite/gas/aarch64/float16-be.d @@ -0,0 +1,11 @@ +# name: Big endian float16 literals (IEEE 754 format) +# source: float16.s +# objdump: -s --section=.data +# as: -mbig-endian + +.*: +file format .* + +Contents of section \.data: + 0000 4a002fdf 1c197bff 000103ff 04003c00.* + 0010 3c017fff 7c00fc00 00008000 bc00bbe7.* + 0020 fbff4200 4a00603e.* diff --git a/gas/testsuite/gas/aarch64/float16-le.d b/gas/testsuite/gas/aarch64/float16-le.d new file mode 100644 index 0000000..873d967 --- /dev/null +++ b/gas/testsuite/gas/aarch64/float16-le.d @@ -0,0 +1,11 @@ +# name: Little endian float16 literals (IEEE 754 format) +# source: float16.s +# objdump: -s --section=.data +# as: -mlittle-endian + +.*: +file format .* + +Contents of section \.data: + 0000 004adf2f 191cff7b 0100ff03 0004003c.* + 0010 013cff7f 007c00fc 00000080 00bce7bb.* + 0020 fffb0042 004a3e60.* diff --git a/gas/testsuite/gas/aarch64/float16.s b/gas/testsuite/gas/aarch64/float16.s new file mode 100644 index 0000000..d2cf6b5 --- /dev/null +++ b/gas/testsuite/gas/aarch64/float16.s @@ -0,0 +1,19 @@ +.data + .float16 12.0 + .float16 0.123 + .float16 0.004 + .float16 65504 + .float16 5.9605e-8 + .float16 6.0976e-5 + .float16 6.1035e-5 + .float16 1 + .float16 1.001 + .float16 NaN + .float16 +Inf + .float16 -Inf + .float16 +0 + .float16 -0 + .float16 -1 + .float16 -0.98765 + .float16 -65504 + .float16 3.0, 12.0, 543.123 |