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| author | Mihail Ionescu <mihail.ionescu@arm.com> | 2019-10-31 11:22:58 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2019-10-31 11:22:58 +0000 |
| commit | e20f9590e78473b3b944d606c28a519094eedea0 (patch) | |
| tree | 8fea0061965fd8f3fd6f4f547e9a5f66a32e8606 /gas/testsuite | |
| parent | c7e49b689b01e54020a945214e75d4d3f8b6a226 (diff) | |
| download | gdb-e20f9590e78473b3b944d606c28a519094eedea0.zip gdb-e20f9590e78473b3b944d606c28a519094eedea0.tar.gz gdb-e20f9590e78473b3b944d606c28a519094eedea0.tar.bz2 | |
Add support for context sensitive '.arch_extension' to the ARM assembler.
If the extension is not found in the context sensitive table, the legacy
tables are still checked as a fallback. This is particularly useful for
Armv8.1-M as it enables the use of '.arch_extension' with the 'mve' and
'mve.fp' extensions which are not part of the legacy table.
* config/tc-arm.c (selected_ctx_ext_table) New static variable.
(arm_parse_arch): Set context sensitive extension table based on the
chosen base architecture.
(s_arm_arch_extension): Change to lookup extensions in the new context
sensitive tables.
* gas/testsuite/gas/arm/mve-ext.s: New.
* gas/testsuite/gas/arm/mve-ext.d: New.
* gas/testsuite/gas/arm/mvefp-ext.s: New.
* gas/testsuite/gas/arm/mvefp-ext.d: New.
Diffstat (limited to 'gas/testsuite')
| -rw-r--r-- | gas/testsuite/gas/arm/mve-ext.d | 8 | ||||
| -rw-r--r-- | gas/testsuite/gas/arm/mve-ext.s | 4 | ||||
| -rw-r--r-- | gas/testsuite/gas/arm/mvefp-ext.d | 8 | ||||
| -rw-r--r-- | gas/testsuite/gas/arm/mvefp-ext.s | 5 |
4 files changed, 25 insertions, 0 deletions
diff --git a/gas/testsuite/gas/arm/mve-ext.d b/gas/testsuite/gas/arm/mve-ext.d new file mode 100644 index 0000000..3529231 --- /dev/null +++ b/gas/testsuite/gas/arm/mve-ext.d @@ -0,0 +1,8 @@ +# name: MVE context sensitive .arch_extension +# as: -march=armv8.1-m.main +# objdump: -dr --prefix-addresses --show-raw-insn -marmv8.1-m.main + +.*: +file format .*arm.* + +Disassembly of section .text: +0[0-9a-f]+ <[^>]+> ea52 136f asrl r2, r3, #5 diff --git a/gas/testsuite/gas/arm/mve-ext.s b/gas/testsuite/gas/arm/mve-ext.s new file mode 100644 index 0000000..8d4c7c6 --- /dev/null +++ b/gas/testsuite/gas/arm/mve-ext.s @@ -0,0 +1,4 @@ +.syntax unified +.arch_extension mve + +asrl r2, r3, #5 diff --git a/gas/testsuite/gas/arm/mvefp-ext.d b/gas/testsuite/gas/arm/mvefp-ext.d new file mode 100644 index 0000000..530a735 --- /dev/null +++ b/gas/testsuite/gas/arm/mvefp-ext.d @@ -0,0 +1,8 @@ +# name: MVE fp context sensitive .arch_extension +# as: -march=armv8.1-m.main +# objdump: -dr --prefix-addresses --show-raw-insn -marmv8.1-m.main + +.*: +file format .*arm.* + +Disassembly of section .text: +[^>]*> eea1 0fc0 vshlc q0, r0, #1 diff --git a/gas/testsuite/gas/arm/mvefp-ext.s b/gas/testsuite/gas/arm/mvefp-ext.s new file mode 100644 index 0000000..28c5f94 --- /dev/null +++ b/gas/testsuite/gas/arm/mvefp-ext.s @@ -0,0 +1,5 @@ +.syntax unified +.thumb +.arch_extension mve.fp + +vshlc q0, r0, #1 |