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[ARM] add target arch definitions for 8.1-M and MVE

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This adds:
- LLVM subtarget features to make all the new instructions conditional on,
- CPU and FPU names for use on clang's command line, with default FPUs set
  so that "armv8.1-m.main+fp" and "armv8.1-m.main+fp.dp" will select the right
  FPU features,
- architecture extension names "mve" and "mve.fp",
- ABI build attribute support for v8.1-M (a new value for Tag_CPU_arch) and MVE
  (a new actual tag).

Patch mostly by Simon Tatham.

Differential Revision: https://reviews.llvm.org/D60698


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362090 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sjoerd Meijer
2019-05-30 12:57:04 +00:00
parent 0553302737
commit afefcdba98
17 changed files with 154 additions and 8 deletions
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lib/Support/ARMAttributeParser.cpp
+16 -1
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@@ -37,6 +37,7 @@ ARMAttributeParser::DisplayRoutines[] = {
ATTRIBUTE_HANDLER(FP_arch),
ATTRIBUTE_HANDLER(WMMX_arch),
ATTRIBUTE_HANDLER(Advanced_SIMD_arch),
ATTRIBUTE_HANDLER(MVE_arch),
ATTRIBUTE_HANDLER(PCS_config),
ATTRIBUTE_HANDLER(ABI_PCS_R9_use),
ATTRIBUTE_HANDLER(ABI_PCS_RW_data),
@@ -132,7 +133,9 @@ void ARMAttributeParser::CPU_arch(AttrType Tag, const uint8_t *Data,
static const char *const Strings[] = {
"Pre-v4", "ARM v4", "ARM v4T", "ARM v5T", "ARM v5TE", "ARM v5TEJ", "ARM v6",
"ARM v6KZ", "ARM v6T2", "ARM v6K", "ARM v7", "ARM v6-M", "ARM v6S-M",
"ARM v7E-M", "ARM v8"
"ARM v7E-M", "ARM v8", nullptr,
"ARM v8-M Baseline", "ARM v8-M Mainline", nullptr, nullptr, nullptr,
"ARM v8.1-M Mainline"
};
uint64_t Value = ParseInteger(Data, Offset);
@@ -213,6 +216,18 @@ void ARMAttributeParser::Advanced_SIMD_arch(AttrType Tag, const uint8_t *Data,
PrintAttribute(Tag, Value, ValueDesc);
}
void ARMAttributeParser::MVE_arch(AttrType Tag, const uint8_t *Data,
uint32_t &Offset) {
static const char *const Strings[] = {
"Not Permitted", "MVE integer", "MVE integer and float"
};
uint64_t Value = ParseInteger(Data, Offset);
StringRef ValueDesc =
(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
PrintAttribute(Tag, Value, ValueDesc);
}
void ARMAttributeParser::PCS_config(AttrType Tag, const uint8_t *Data,
uint32_t &Offset) {
static const char *const Strings[] = {