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authorStephen Hines <srhines@google.com>2015-03-23 12:10:34 -0700
committerStephen Hines <srhines@google.com>2015-03-23 12:10:34 -0700
commitebe69fe11e48d322045d5949c83283927a0d790b (patch)
treec92f1907a6b8006628a4b01615f38264d29834ea /lib/Target/BPF/BPFCallingConv.td
parentb7d2e72b02a4cb8034f32f8247a2558d2434e121 (diff)
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Update aosp/master LLVM for rebase to r230699.
Change-Id: I2b5be30509658cb8266be782de0ab24f9099f9b9
Diffstat (limited to 'lib/Target/BPF/BPFCallingConv.td')
-rw-r--r--lib/Target/BPF/BPFCallingConv.td29
1 files changed, 29 insertions, 0 deletions
diff --git a/lib/Target/BPF/BPFCallingConv.td b/lib/Target/BPF/BPFCallingConv.td
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+//===-- BPFCallingConv.td - Calling Conventions BPF --------*- tablegen -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This describes the calling conventions for the BPF architecture.
+//
+//===----------------------------------------------------------------------===//
+
+// BPF 64-bit C return-value convention.
+def RetCC_BPF64 : CallingConv<[CCIfType<[i64], CCAssignToReg<[R0]>>]>;
+
+// BPF 64-bit C Calling convention.
+def CC_BPF64 : CallingConv<[
+ // Promote i8/i16/i32 args to i64
+ CCIfType<[ i8, i16, i32 ], CCPromoteToType<i64>>,
+
+ // All arguments get passed in integer registers if there is space.
+ CCIfType<[i64], CCAssignToReg<[ R1, R2, R3, R4, R5 ]>>,
+
+ // Could be assigned to the stack in 8-byte aligned units, but unsupported
+ CCAssignToStack<8, 8>
+]>;
+
+def CSR : CalleeSavedRegs<(add R6, R7, R8, R9, R10)>;