Eliminate the recently introduced CCAssignToStackABISizeAlign

in favour of teaching CCAssignToStack that size 0 and/or align
0 means to use the ABI values.  This seems a neater solution.
It is safe since no legal value type has size 0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44107 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 5 insertions, 10 deletions

diff --git a/lib/Target/TargetCallingConv.td b/lib/Target/TargetCallingConv.td
index 05029a01a6..62eb1c743a 100644
--- a/lib/Target/TargetCallingConv.td
+++ b/lib/Target/TargetCallingConv.td
@@ -60,19 +60,14 @@ class CCAssignToReg<list<Register> regList> : CCAction {
 }
 
 /// CCAssignToStack - This action always matches: it assigns the value to a
-/// stack slot of the specified size and alignment on the stack.
+/// stack slot of the specified size and alignment on the stack.  If size is
+/// zero then the ABI size is used; if align is zero then the ABI alignment
+/// is used - these may depend on the target or subtarget.
 class CCAssignToStack<int size, int align> : CCAction {
   int Size = size;
   int Align = align;
 }
 
-/// CCAssignToStackABISizeAlign - This action always matches: it assigns
-/// the value to a stack slot of the ABISize and ABIAlignment for the type,
-/// which may depend on the target or subtarget.
-/// "ignored" is here because an empty arg list does not work.
-class CCAssignToStackABISizeAlign<int ignored> : CCAction {
-}
-
 /// CCStructAssign - This action always matches: it will use the C ABI and
 /// the register availability to decided whether to assign to a set of
 /// registers or to a stack slot.
diff --git a/lib/Target/X86/X86CallingConv.td b/lib/Target/X86/X86CallingConv.td
index 97d4636b81..bb054e8f05 100644
--- a/lib/Target/X86/X86CallingConv.td
+++ b/lib/Target/X86/X86CallingConv.td
@@ -120,7 +120,7 @@ def CC_X86_64_C : CallingConv<[
   
   // Long doubles get stack slots whose size and alignment depends on the
   // subtarget.
-  CCIfType<[f80], CCAssignToStackABISizeAlign<0>>,
+  CCIfType<[f80], CCAssignToStack<0, 0>>,
 
   // Vectors get 16-byte stack slots that are 16-byte aligned.
   CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToStack<16, 16>>,
@@ -181,7 +181,7 @@ def CC_X86_32_Common : CallingConv<[
 
   // Long doubles get slots whose size and alignment depends on the
   // subtarget.
-  CCIfType<[f80], CCAssignToStackABISizeAlign<0>>,
+  CCIfType<[f80], CCAssignToStack<0, 0>>,
 
   // The first 4 vector arguments are passed in XMM registers.
   CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],