- Added support for parsing HWDiv features using Target Parser.
- Architecture extensions are represented as a bitmap.
Phabricator: http://reviews.llvm.org/D11457
llvm-svn: 243335
diff --git a/llvm/lib/Support/TargetParser.cpp b/llvm/lib/Support/TargetParser.cpp
index 315e0f7..6d43f25 100644
--- a/llvm/lib/Support/TargetParser.cpp
+++ b/llvm/lib/Support/TargetParser.cpp
@@ -113,22 +113,36 @@
// FIXME: TableGen this.
struct {
const char *Name;
- ARM::ArchExtKind ID;
+ unsigned ID;
} ARCHExtNames[] = {
- { "invalid", ARM::AEK_INVALID },
- { "crc", ARM::AEK_CRC },
- { "crypto", ARM::AEK_CRYPTO },
- { "fp", ARM::AEK_FP },
- { "idiv", ARM::AEK_HWDIV },
- { "mp", ARM::AEK_MP },
- { "simd", ARM::AEK_SIMD },
- { "sec", ARM::AEK_SEC },
- { "virt", ARM::AEK_VIRT },
- { "os", ARM::AEK_OS },
- { "iwmmxt", ARM::AEK_IWMMXT },
- { "iwmmxt2", ARM::AEK_IWMMXT2 },
- { "maverick", ARM::AEK_MAVERICK },
- { "xscale", ARM::AEK_XSCALE }
+ { "invalid", ARM::AEK_INVALID },
+ { "none", ARM::AEK_NONE },
+ { "crc", ARM::AEK_CRC },
+ { "crypto", ARM::AEK_CRYPTO },
+ { "fp", ARM::AEK_FP },
+ { "idiv", (ARM::AEK_HWDIVARM | ARM::AEK_HWDIV) },
+ { "mp", ARM::AEK_MP },
+ { "simd", ARM::AEK_SIMD },
+ { "sec", ARM::AEK_SEC },
+ { "virt", ARM::AEK_VIRT },
+ { "os", ARM::AEK_OS },
+ { "iwmmxt", ARM::AEK_IWMMXT },
+ { "iwmmxt2", ARM::AEK_IWMMXT2 },
+ { "maverick", ARM::AEK_MAVERICK },
+ { "xscale", ARM::AEK_XSCALE }
+};
+// List of HWDiv names (use getHWDivSynonym) and which architectural
+// features they correspond to (use getHWDivFeatures).
+// FIXME: TableGen this.
+struct {
+ const char *Name;
+ unsigned ID;
+} HWDivNames[] = {
+ { "invalid", ARM::AEK_INVALID },
+ { "none", ARM::AEK_NONE },
+ { "thumb", ARM::AEK_HWDIV },
+ { "arm", ARM::AEK_HWDIVARM },
+ { "arm,thumb", (ARM::AEK_HWDIVARM | ARM::AEK_HWDIV) }
};
// List of CPU names and their arches.
// The same CPU can have multiple arches and can be default on multiple arches.
@@ -266,6 +280,25 @@
return ARM::FK_INVALID;
}
+bool ARMTargetParser::getHWDivFeatures(unsigned HWDivKind,
+ std::vector<const char *> &Features) {
+
+ if (HWDivKind == ARM::AEK_INVALID)
+ return false;
+
+ if (HWDivKind & ARM::AEK_HWDIVARM)
+ Features.push_back("+hwdiv-arm");
+ else
+ Features.push_back("-hwdiv-arm");
+
+ if (HWDivKind & ARM::AEK_HWDIV)
+ Features.push_back("+hwdiv");
+ else
+ Features.push_back("-hwdiv");
+
+ return true;
+}
+
bool ARMTargetParser::getFPUFeatures(unsigned FPUKind,
std::vector<const char *> &Features) {
@@ -372,9 +405,19 @@
}
const char *ARMTargetParser::getArchExtName(unsigned ArchExtKind) {
- if (ArchExtKind >= ARM::AEK_LAST)
- return nullptr;
- return ARCHExtNames[ArchExtKind].Name;
+ for (const auto AE : ARCHExtNames) {
+ if (ArchExtKind == AE.ID)
+ return AE.Name;
+ }
+ return nullptr;
+}
+
+const char *ARMTargetParser::getHWDivName(unsigned HWDivKind) {
+ for (const auto D : HWDivNames) {
+ if (HWDivKind == D.ID)
+ return D.Name;
+ }
+ return nullptr;
}
const char *ARMTargetParser::getDefaultCPU(StringRef Arch) {
@@ -394,6 +437,12 @@
// Parsers
// ======================================================= //
+StringRef ARMTargetParser::getHWDivSynonym(StringRef HWDiv) {
+ return StringSwitch<StringRef>(HWDiv)
+ .Case("thumb,arm", "arm,thumb")
+ .Default(HWDiv);
+}
+
StringRef ARMTargetParser::getFPUSynonym(StringRef FPU) {
return StringSwitch<StringRef>(FPU)
.Cases("fpa", "fpe2", "fpe3", "maverick", "invalid") // Unsupported
@@ -477,6 +526,15 @@
return A;
}
+unsigned ARMTargetParser::parseHWDiv(StringRef HWDiv) {
+ StringRef Syn = getHWDivSynonym(HWDiv);
+ for (const auto D : HWDivNames) {
+ if (Syn == D.Name)
+ return D.ID;
+ }
+ return ARM::AEK_INVALID;
+}
+
unsigned ARMTargetParser::parseFPU(StringRef FPU) {
StringRef Syn = getFPUSynonym(FPU);
for (const auto F : FPUNames) {