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| author | Daniel Dunbar <daniel@zuster.org> | 2009-05-22 17:33:44 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2009-05-22 17:33:44 +0000 |
| commit | 3a5f5c57e0a262207f7cb721a60df3676ab5209f (patch) | |
| tree | 411cd6f8085a965d8ced31fd6d84ca628dc9b094 /lib | |
| parent | cd1876207f5564beba74e4b2524b664bdba0ba9f (diff) | |
x86_64 ABI: Account for sret parameters consuming an integer register.
- PR4242.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72268 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/CGCall.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp index 356caa3f90..ce98f8c256 100644 --- a/lib/CodeGen/CGCall.cpp +++ b/lib/CodeGen/CGCall.cpp @@ -1055,6 +1055,11 @@ void X86_64ABIInfo::computeInfo(CGFunctionInfo &FI, ASTContext &Context) const { // Keep track of the number of assigned registers. unsigned freeIntRegs = 6, freeSSERegs = 8; + + // If the return value is indirect, then the hidden argument is consuming one + // integer register. + if (FI.getReturnInfo().isIndirect()) + --freeIntRegs; // AMD64-ABI 3.2.3p3: Once arguments are classified, the registers // get assigned (in left-to-right order) for passing as follows... |