The attached patches implement most of the ARM AAPCS-VFP hard float
ABI. The missing piece is support for putting "homogeneous aggregates"
into registers.
Patch by Sandeep Patel!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73095 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index c0fd9dc..ec8bd1f 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -1101,7 +1101,12 @@
else
RC = ARM::GPRRegisterClass;
- if (RegVT == MVT::f64) {
+ if (FloatABIType == FloatABI::Hard) {
+ if (RegVT == MVT::f32)
+ RC = ARM::SPRRegisterClass;
+ else if (RegVT == MVT::f64)
+ RC = ARM::DPRRegisterClass;
+ } else if (RegVT == MVT::f64) {
// f64 is passed in pairs of GPRs and must be combined.
RegVT = MVT::i32;
} else if (!((RegVT == MVT::i32) || (RegVT == MVT::f32)))