Index: llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp
===================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp
+++ llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp
@@ -611,7 +611,7 @@
   // have to worry about calling conventions and target-specific lowering code.
   // Instead we perform the call lowering right here.
   //
-  // CALLSEQ_START(0)
+  // CALLSEQ_START(0...)
   // STACKMAP(id, nbytes, ...)
   // CALLSEQ_END(0, 0)
   //
@@ -647,8 +647,11 @@
 
   // Issue CALLSEQ_START
   unsigned AdjStackDown = TII.getCallFrameSetupOpcode();
-  BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(AdjStackDown))
-      .addImm(0);
+  auto Builder =
+      BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(AdjStackDown));
+  const MCInstrDesc &MCID = Builder.getInstr()->getDesc();
+  for (unsigned I = 0, E = MCID.getNumOperands(); I < E; ++I)
+    Builder.addImm(0);
 
   // Issue STACKMAP.
   MachineInstrBuilder MIB = BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
Index: llvm/trunk/test/CodeGen/AArch64/stackmap-frame-setup.ll
===================================================================
--- llvm/trunk/test/CodeGen/AArch64/stackmap-frame-setup.ll
+++ llvm/trunk/test/CodeGen/AArch64/stackmap-frame-setup.ll
@@ -0,0 +1,20 @@
+; RUN: llc -o /dev/null -verify-machineinstrs -mtriple=aarch64-apple-darwin -stop-after machine-sink %s | FileCheck %s --check-prefix=ISEL
+; RUN: llc -o /dev/null -verify-machineinstrs -mtriple=aarch64-apple-darwin -fast-isel -fast-isel-abort=1 -stop-after machine-sink %s | FileCheck %s --check-prefix=FAST-ISEL
+
+define void @caller_meta_leaf() {
+entry:
+  %metadata = alloca i64, i32 3, align 8
+  store i64 11, i64* %metadata
+  store i64 12, i64* %metadata
+  store i64 13, i64* %metadata
+; ISEL:      ADJCALLSTACKDOWN 0, implicit-def
+; ISEL-NEXT: STACKMAP
+; ISEL-NEXT: ADJCALLSTACKUP 0, 0, implicit-def
+  call void (i64, i32, ...) @llvm.experimental.stackmap(i64 4, i32 0, i64* %metadata)
+; FAST-ISEL:      ADJCALLSTACKDOWN 0, implicit-def
+; FAST-ISEL-NEXT: STACKMAP
+; FAST-ISEL-NEXT: ADJCALLSTACKUP 0, 0, implicit-def
+  ret void
+}
+
+declare void @llvm.experimental.stackmap(i64, i32, ...)
Index: llvm/trunk/test/CodeGen/PowerPC/stackmap-frame-setup.ll
===================================================================
--- llvm/trunk/test/CodeGen/PowerPC/stackmap-frame-setup.ll
+++ llvm/trunk/test/CodeGen/PowerPC/stackmap-frame-setup.ll
@@ -0,0 +1,20 @@
+; RUN: llc -o /dev/null -verify-machineinstrs -mtriple=powerpc64-unknown-gnu-linux -stop-after machine-sink %s | FileCheck %s --check-prefix=ISEL
+; RUN: llc -o /dev/null -verify-machineinstrs -mtriple=powerpc64-unknown-gnu-linux -fast-isel -fast-isel-abort=1 -stop-after machine-sink %s | FileCheck %s --check-prefix=FAST-ISEL
+
+define void @caller_meta_leaf() {
+entry:
+  %metadata = alloca i64, i32 3, align 8
+  store i64 11, i64* %metadata
+  store i64 12, i64* %metadata
+  store i64 13, i64* %metadata
+; ISEL:      ADJCALLSTACKDOWN 0, implicit-def
+; ISEL-NEXT: STACKMAP
+; ISEL-NEXT: ADJCALLSTACKUP 0, 0, implicit-def
+  call void (i64, i32, ...) @llvm.experimental.stackmap(i64 4, i32 0, i64* %metadata)
+; FAST-ISEL:      ADJCALLSTACKDOWN 0, implicit-def
+; FAST-ISEL-NEXT: STACKMAP
+; FAST-ISEL-NEXT: ADJCALLSTACKUP 0, 0, implicit-def
+  ret void
+}
+
+declare void @llvm.experimental.stackmap(i64, i32, ...)
Index: llvm/trunk/test/CodeGen/X86/stackmap-frame-setup.ll
===================================================================
--- llvm/trunk/test/CodeGen/X86/stackmap-frame-setup.ll
+++ llvm/trunk/test/CodeGen/X86/stackmap-frame-setup.ll
@@ -0,0 +1,20 @@
+; RUN: llc -o /dev/null -verify-machineinstrs -mtriple=x86_64-apple-darwin -mcpu=corei7 -stop-after machine-sink %s | FileCheck %s --check-prefix=ISEL
+; RUN: llc -o /dev/null -verify-machineinstrs -mtriple=x86_64-apple-darwin -mcpu=corei7 -fast-isel -fast-isel-abort=1 -stop-after machine-sink %s | FileCheck %s --check-prefix=FAST-ISEL
+
+define void @caller_meta_leaf() {
+entry:
+  %metadata = alloca i64, i32 3, align 8
+  store i64 11, i64* %metadata
+  store i64 12, i64* %metadata
+  store i64 13, i64* %metadata
+; ISEL:      ADJCALLSTACKDOWN64 0, 0, implicit-def
+; ISEL-NEXT: STACKMAP
+; ISEL-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def
+  call void (i64, i32, ...) @llvm.experimental.stackmap(i64 4, i32 0, i64* %metadata)
+; FAST-ISEL:      ADJCALLSTACKDOWN64 0, 0, implicit-def
+; FAST-ISEL-NEXT: STACKMAP
+; FAST-ISEL-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def
+  ret void
+}
+
+declare void @llvm.experimental.stackmap(i64, i32, ...)