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-rw-r--r--llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp6
-rw-r--r--llvm/test/CodeGen/WebAssembly/userstack.ll5
2 files changed, 11 insertions, 0 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp
index 079c864c7bc..e853b76d0dd 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp
+++ b/llvm/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 @@ void WebAssemblyAsmPrinter::EmitFunctionBodyStart() {
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);
diff --git a/llvm/test/CodeGen/WebAssembly/userstack.ll b/llvm/test/CodeGen/WebAssembly/userstack.ll
index 27ff1e192e6..855eaa00a4a 100644
--- a/llvm/test/CodeGen/WebAssembly/userstack.ll
+++ b/llvm/test/CodeGen/WebAssembly/userstack.ll
@@ -6,6 +6,8 @@ target datalayout = "e-p:32:32-i64:64-n32:64-S128"
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{{$}}
define void @alloca32() {
; CHECK: i32.const [[L1:.+]]=, __stack_pointer
; CHECK-NEXT: i32.load [[L1]]=, 0([[L1]])
@@ -23,6 +25,7 @@ define void @alloca32() {
}
; CHECK-LABEL: alloca3264:
+; CHECK: .local i32, i32, i32, i32{{$}}
define void @alloca3264() {
; CHECK: i32.const [[L1:.+]]=, __stack_pointer
; CHECK-NEXT: i32.load [[L1]]=, 0([[L1]])
@@ -43,6 +46,8 @@ define void @alloca3264() {
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]])
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