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The canonical CPU variant for ARM according to config.guess uses a

Browse Source 
suffix it seems:

    # ./config.guess
    earmv7hfeb-unknown-netbsd7.99.4

Extend the triple parsing to support this. Avoid running the ARM parser
multiple times because StringSwitch is not lazy.

Reviewers: Renato Golin, Tim Northover

Differential Revision: http://reviews.llvm.org/D7166


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227085 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Joerg Sonnenberger 2015-01-26 11:41:48 +00:00
parent c211591e17
commit d546b25ddb
2 changed files with 38 additions and 5 deletions
lib/Support
Triple.cpp
unittests/ADT
TripleTest.cpp

26
lib/Support/Triple.cpp

@ -251,13 +251,21 @@ static Triple::ArchType parseARMArch(StringRef ArchName) {
if (ArchName.startswith("armv")) {
offset = 3;
arch = Triple::arm;
if (ArchName.endswith("eb")) {
arch = Triple::armeb;
ArchName = ArchName.substr(0, ArchName.size() - 2);
} else
arch = Triple::arm;
} else if (ArchName.startswith("armebv")) {
offset = 5;
arch = Triple::armeb;
} else if (ArchName.startswith("thumbv")) {
offset = 5;
arch = Triple::thumb;
if (ArchName.endswith("eb")) {
arch = Triple::thumbeb;
ArchName = ArchName.substr(0, ArchName.size() - 2);
} else
arch = Triple::thumb;
} else if (ArchName.startswith("thumbebv")) {
offset = 7;
arch = Triple::thumbeb;
@ -276,6 +284,8 @@ static Triple::ArchType parseARMArch(StringRef ArchName) {
}
static Triple::ArchType parseArch(StringRef ArchName) {
Triple::ArchType ARMArch(parseARMArch(ArchName));
return StringSwitch<Triple::ArchType>(ArchName)
.Cases("i386", "i486", "i586", "i686", Triple::x86)
// FIXME: Do we need to support these?
@ -285,9 +295,10 @@ static Triple::ArchType parseArch(StringRef ArchName) {
.Cases("powerpc64", "ppu", Triple::ppc64)
.Case("powerpc64le", Triple::ppc64le)
.Case("xscale", Triple::arm)
.StartsWith("arm", parseARMArch(ArchName))
.StartsWith("thumb", parseARMArch(ArchName))
.StartsWith("aarch64", parseARMArch(ArchName))
.Case("xscaleeb", Triple::armeb)
.StartsWith("arm", ARMArch)
.StartsWith("thumb", ARMArch)
.StartsWith("aarch64", ARMArch)
.Case("msp430", Triple::msp430)
.Cases("mips", "mipseb", "mipsallegrex", Triple::mips)
.Cases("mipsel", "mipsallegrexel", Triple::mipsel)
@ -386,6 +397,9 @@ static Triple::ObjectFormatType parseFormat(StringRef EnvironmentName) {
}
static Triple::SubArchType parseSubArch(StringRef SubArchName) {
if (SubArchName.endswith("eb"))
SubArchName = SubArchName.substr(0, SubArchName.size() - 2);
return StringSwitch<Triple::SubArchType>(SubArchName)
.EndsWith("v8", Triple::ARMSubArch_v8)
.EndsWith("v8a", Triple::ARMSubArch_v8)
@ -1032,6 +1046,8 @@ const char *Triple::getARMCPUForArch(StringRef MArch) const {
offset = 5;
if (offset != StringRef::npos && MArch.substr(offset, 2) == "eb")
offset += 2;
if (MArch.endswith("eb"))
MArch = MArch.substr(0, MArch.size() - 2);
if (offset != StringRef::npos)
result = llvm::StringSwitch<const char *>(MArch.substr(offset))
.Cases("v2", "v2a", "arm2")

17
unittests/ADT/TripleTest.cpp

@ -665,3 +665,20 @@ TEST(TripleTest, getARMCPUForArch) {
}
}
}
TEST(TripleTest, NormalizeARM) {
EXPECT_EQ("armv6--netbsd-eabi", Triple::normalize("armv6-netbsd-eabi"));
EXPECT_EQ("armv7--netbsd-eabi", Triple::normalize("armv7-netbsd-eabi"));
EXPECT_EQ("armv6eb--netbsd-eabi", Triple::normalize("armv6eb-netbsd-eabi"));
EXPECT_EQ("armv7eb--netbsd-eabi", Triple::normalize("armv7eb-netbsd-eabi"));
EXPECT_EQ("armv6--netbsd-eabihf", Triple::normalize("armv6-netbsd-eabihf"));
EXPECT_EQ("armv7--netbsd-eabihf", Triple::normalize("armv7-netbsd-eabihf"));
EXPECT_EQ("armv6eb--netbsd-eabihf", Triple::normalize("armv6eb-netbsd-eabihf"));
EXPECT_EQ("armv7eb--netbsd-eabihf", Triple::normalize("armv7eb-netbsd-eabihf"));
Triple T;
T = Triple("armv6--netbsd-eabi");
EXPECT_EQ(Triple::arm, T.getArch());
T = Triple("armv6eb--netbsd-eabi");
EXPECT_EQ(Triple::armeb, T.getArch());
}