Make the ARM ABI selectable via SubtargetFeature.
This patch makes it possible to select the ABI with -mattr. It will be used to
forward clang's -target-abi option to llvm's CodeGen.
llvm-svn: 198304
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.cpp b/llvm/lib/Target/ARM/ARMSubtarget.cpp
index 3c5bed5..81fdbfd 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.cpp
+++ b/llvm/lib/Target/ARM/ARMSubtarget.cpp
@@ -83,7 +83,7 @@
, CPUString(CPU)
, TargetTriple(TT)
, Options(Options)
- , TargetABI(ARM_ABI_APCS) {
+ , TargetABI(ARM_ABI_UNKNOWN) {
initializeEnvironment();
resetSubtargetFeatures(CPU, FS);
}
@@ -189,18 +189,22 @@
// Initialize scheduling itinerary for the specified CPU.
InstrItins = getInstrItineraryForCPU(CPUString);
- switch (TargetTriple.getEnvironment()) {
- case Triple::Android:
- case Triple::EABI:
- case Triple::EABIHF:
- case Triple::GNUEABI:
- case Triple::GNUEABIHF:
- TargetABI = ARM_ABI_AAPCS;
- break;
- default:
- if (isTargetIOS() && isMClass())
+ if (TargetABI == ARM_ABI_UNKNOWN) {
+ switch (TargetTriple.getEnvironment()) {
+ case Triple::Android:
+ case Triple::EABI:
+ case Triple::EABIHF:
+ case Triple::GNUEABI:
+ case Triple::GNUEABIHF:
TargetABI = ARM_ABI_AAPCS;
- break;
+ break;
+ default:
+ if (isTargetIOS() && isMClass())
+ TargetABI = ARM_ABI_AAPCS;
+ else
+ TargetABI = ARM_ABI_APCS;
+ break;
+ }
}
if (isAAPCS_ABI())