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| author | Stepan Dyatkovskiy <stpworld@narod.ru> | 2013-04-22 13:06:52 +0000 |
|---|---|---|
| committer | Stepan Dyatkovskiy <stpworld@narod.ru> | 2013-04-22 13:06:52 +0000 |
| commit | 78e3c90419ffbe969bd38c7a198300af42fb66fc (patch) | |
| tree | e6213d5f44860103482884cb5fcd940ba4bbaf5a /lib/Target/ARM/ARMISelLowering.cpp | |
| parent | 4f40fa324c16fd9a03f1b916dfc4c0c4bab228fa (diff) | |
| download | llvm-78e3c90419ffbe969bd38c7a198300af42fb66fc.tar.gz llvm-78e3c90419ffbe969bd38c7a198300af42fb66fc.tar.bz2 llvm-78e3c90419ffbe969bd38c7a198300af42fb66fc.tar.xz | |
Fix for 5.5 Parameter Passing --> Stage C:
-- C.4 and C.5 statements, when NSAA is not equal to SP.
-- C.1.cp statement for VA functions. Note: There are no VFP CPRCs in a
variadic procedure.
Before this patch "NSAA != 0" means "don't use GPRs anymore ". But there are
some exceptions in AAPCS.
1. For non VA function: allocate all VFP regs for CPRC. When all VFPs are allocated
CPRCs would be sent to stack, while non CPRCs may be still allocated in GRPs.
2. Check that for VA functions all params uses GPRs and then stack.
No exceptions, no CPRCs here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180011 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMISelLowering.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 23d7ef1290..a9fe221e6d 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -1738,6 +1738,7 @@ ARMTargetLowering::HandleByVal( State->getCallOrPrologue() == Call) && "unhandled ParmContext"); if ((!State->isFirstByValRegValid()) && + (!Subtarget->isAAPCS_ABI() || State->getNextStackOffset() == 0) && (ARM::R0 <= reg) && (reg <= ARM::R3)) { if (Subtarget->isAAPCS_ABI() && Align > 4) { unsigned AlignInRegs = Align / 4; |