Index: llvm/trunk/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp =================================================================== --- llvm/trunk/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp +++ llvm/trunk/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp @@ -26,6 +26,7 @@ #include "llvm/CodeGen/Analysis.h" #include "llvm/CodeGen/AsmPrinter.h" #include "llvm/CodeGen/MachineConstantPool.h" +#include "llvm/CodeGen/MachineFrameInfo.h" #include "llvm/CodeGen/MachineInstr.h" #include "llvm/IR/DataLayout.h" #include "llvm/MC/MCContext.h" @@ -181,6 +182,11 @@ Local.addOperand(MCOperand::createImm(getRegType(VReg).SimpleTy)); AnyWARegs = true; } + if (MF->getFrameInfo()->getStackSize() > 0) { + // TODO: wasm64 + Local.addOperand(MCOperand::createImm(MVT::i32)); + AnyWARegs = true; + } if (AnyWARegs) EmitToStreamer(*OutStreamer, Local); Index: llvm/trunk/test/CodeGen/WebAssembly/userstack.ll =================================================================== --- llvm/trunk/test/CodeGen/WebAssembly/userstack.ll +++ llvm/trunk/test/CodeGen/WebAssembly/userstack.ll @@ -6,6 +6,8 @@ target triple = "wasm32-unknown-unknown" ; CHECK-LABEL: alloca32: +; Check that there is an extra local for the stack pointer. +; CHECK: .local i32, i32, i32, i32{{$}} define void @alloca32() { ; CHECK: i32.const [[L1:.+]]=, __stack_pointer ; CHECK-NEXT: i32.load [[L1]]=, 0([[L1]]) @@ -23,6 +25,7 @@ } ; CHECK-LABEL: alloca3264: +; CHECK: .local i32, i32, i32, i32{{$}} define void @alloca3264() { ; CHECK: i32.const [[L1:.+]]=, __stack_pointer ; CHECK-NEXT: i32.load [[L1]]=, 0([[L1]]) @@ -43,6 +46,8 @@ ret void } +; CHECK-LABEL: allocarray: +; CHECK: .local i32, i32, i32, i32, i32, i32{{$}} define void @allocarray() { ; CHECK: i32.const [[L1:.+]]=, __stack_pointer ; CHECK-NEXT: i32.load [[L1]]=, 0([[L1]])