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Diffstat (limited to 'lib/Driver/ToolChains/Arch/Mips.cpp')
-rw-r--r--lib/Driver/ToolChains/Arch/Mips.cpp102
1 files changed, 72 insertions, 30 deletions
diff --git a/lib/Driver/ToolChains/Arch/Mips.cpp b/lib/Driver/ToolChains/Arch/Mips.cpp
index b45dcd6db678..61481a92d0b7 100644
--- a/lib/Driver/ToolChains/Arch/Mips.cpp
+++ b/lib/Driver/ToolChains/Arch/Mips.cpp
@@ -35,7 +35,7 @@ void mips::getMipsCPUAndABI(const ArgList &Args, const llvm::Triple &Triple,
// MIPS32r6 is the default for mips(el)?-img-linux-gnu and MIPS64r6 is the
// default for mips64(el)?-img-linux-gnu.
if (Triple.getVendor() == llvm::Triple::ImaginationTechnologies &&
- Triple.getEnvironment() == llvm::Triple::GNU) {
+ Triple.isGNUEnvironment()) {
DefMips32CPU = "mips32r6";
DefMips64CPU = "mips64r6";
}
@@ -227,11 +227,32 @@ void mips::getMIPSTargetFeatures(const Driver &D, const llvm::Triple &Triple,
O.matches(options::OPT_fno_PIE) || O.matches(options::OPT_fno_pie));
}
- if (IsN64 && NonPIC)
+ bool UseAbiCalls = false;
+
+ Arg *ABICallsArg =
+ Args.getLastArg(options::OPT_mabicalls, options::OPT_mno_abicalls);
+ UseAbiCalls =
+ !ABICallsArg || ABICallsArg->getOption().matches(options::OPT_mabicalls);
+
+ if (UseAbiCalls && IsN64 && NonPIC) {
+ D.Diag(diag::warn_drv_unsupported_abicalls);
+ UseAbiCalls = false;
+ }
+
+ if (!UseAbiCalls)
Features.push_back("+noabicalls");
else
- AddTargetFeature(Args, Features, options::OPT_mno_abicalls,
- options::OPT_mabicalls, "noabicalls");
+ Features.push_back("-noabicalls");
+
+ if (Arg *A = Args.getLastArg(options::OPT_mlong_calls,
+ options::OPT_mno_long_calls)) {
+ if (A->getOption().matches(options::OPT_mno_long_calls))
+ Features.push_back("-long-calls");
+ else if (!UseAbiCalls)
+ Features.push_back("+long-calls");
+ else
+ D.Diag(diag::warn_drv_unsupported_longcalls) << (ABICallsArg ? 0 : 1);
+ }
mips::FloatABI FloatABI = mips::getMipsFloatABI(D, Args);
if (FloatABI == mips::FloatABI::Soft) {
@@ -244,14 +265,14 @@ void mips::getMIPSTargetFeatures(const Driver &D, const llvm::Triple &Triple,
if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) {
StringRef Val = StringRef(A->getValue());
if (Val == "2008") {
- if (mips::getSupportedNanEncoding(CPUName) & mips::Nan2008)
+ if (mips::getIEEE754Standard(CPUName) & mips::Std2008)
Features.push_back("+nan2008");
else {
Features.push_back("-nan2008");
D.Diag(diag::warn_target_unsupported_nan2008) << CPUName;
}
} else if (Val == "legacy") {
- if (mips::getSupportedNanEncoding(CPUName) & mips::NanLegacy)
+ if (mips::getIEEE754Standard(CPUName) & mips::Legacy)
Features.push_back("-nan2008");
else {
Features.push_back("+nan2008");
@@ -262,6 +283,28 @@ void mips::getMIPSTargetFeatures(const Driver &D, const llvm::Triple &Triple,
<< A->getOption().getName() << Val;
}
+ if (Arg *A = Args.getLastArg(options::OPT_mabs_EQ)) {
+ StringRef Val = StringRef(A->getValue());
+ if (Val == "2008") {
+ if (mips::getIEEE754Standard(CPUName) & mips::Std2008) {
+ Features.push_back("+abs2008");
+ } else {
+ Features.push_back("-abs2008");
+ D.Diag(diag::warn_target_unsupported_abs2008) << CPUName;
+ }
+ } else if (Val == "legacy") {
+ if (mips::getIEEE754Standard(CPUName) & mips::Legacy) {
+ Features.push_back("-abs2008");
+ } else {
+ Features.push_back("+abs2008");
+ D.Diag(diag::warn_target_unsupported_abslegacy) << CPUName;
+ }
+ } else {
+ D.Diag(diag::err_drv_unsupported_option_argument)
+ << A->getOption().getName() << Val;
+ }
+ }
+
AddTargetFeature(Args, Features, options::OPT_msingle_float,
options::OPT_mdouble_float, "single-float");
AddTargetFeature(Args, Features, options::OPT_mips16, options::OPT_mno_mips16,
@@ -299,32 +342,31 @@ void mips::getMIPSTargetFeatures(const Driver &D, const llvm::Triple &Triple,
options::OPT_modd_spreg, "nooddspreg");
AddTargetFeature(Args, Features, options::OPT_mno_madd4, options::OPT_mmadd4,
"nomadd4");
- AddTargetFeature(Args, Features, options::OPT_mlong_calls,
- options::OPT_mno_long_calls, "long-calls");
- AddTargetFeature(Args, Features, options::OPT_mmt, options::OPT_mno_mt,"mt");
+ AddTargetFeature(Args, Features, options::OPT_mmt, options::OPT_mno_mt, "mt");
}
-mips::NanEncoding mips::getSupportedNanEncoding(StringRef &CPU) {
- // Strictly speaking, mips32r2 and mips64r2 are NanLegacy-only since Nan2008
- // was first introduced in Release 3. However, other compilers have
- // traditionally allowed it for Release 2 so we should do the same.
- return (NanEncoding)llvm::StringSwitch<int>(CPU)
- .Case("mips1", NanLegacy)
- .Case("mips2", NanLegacy)
- .Case("mips3", NanLegacy)
- .Case("mips4", NanLegacy)
- .Case("mips5", NanLegacy)
- .Case("mips32", NanLegacy)
- .Case("mips32r2", NanLegacy | Nan2008)
- .Case("mips32r3", NanLegacy | Nan2008)
- .Case("mips32r5", NanLegacy | Nan2008)
- .Case("mips32r6", Nan2008)
- .Case("mips64", NanLegacy)
- .Case("mips64r2", NanLegacy | Nan2008)
- .Case("mips64r3", NanLegacy | Nan2008)
- .Case("mips64r5", NanLegacy | Nan2008)
- .Case("mips64r6", Nan2008)
- .Default(NanLegacy);
+mips::IEEE754Standard mips::getIEEE754Standard(StringRef &CPU) {
+ // Strictly speaking, mips32r2 and mips64r2 do not conform to the
+ // IEEE754-2008 standard. Support for this standard was first introduced
+ // in Release 3. However, other compilers have traditionally allowed it
+ // for Release 2 so we should do the same.
+ return (IEEE754Standard)llvm::StringSwitch<int>(CPU)
+ .Case("mips1", Legacy)
+ .Case("mips2", Legacy)
+ .Case("mips3", Legacy)
+ .Case("mips4", Legacy)
+ .Case("mips5", Legacy)
+ .Case("mips32", Legacy)
+ .Case("mips32r2", Legacy | Std2008)
+ .Case("mips32r3", Legacy | Std2008)
+ .Case("mips32r5", Legacy | Std2008)
+ .Case("mips32r6", Std2008)
+ .Case("mips64", Legacy)
+ .Case("mips64r2", Legacy | Std2008)
+ .Case("mips64r3", Legacy | Std2008)
+ .Case("mips64r5", Legacy | Std2008)
+ .Case("mips64r6", Std2008)
+ .Default(Std2008);
}
bool mips::hasCompactBranches(StringRef &CPU) {
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-22 23:23:16 +0000