From 9f2031f243b0978a11ffa1a52e4e79a63ee8d52d Mon Sep 17 00:00:00 2001
From: Yaxun Liu <Yaxun.Liu@amd.com>
Date: Mon, 17 Apr 2017 20:10:44 +0000
Subject: [PATCH] CodeGen: Let byval parameter use alloca address space
Differential Revision: https://reviews.llvm.org/D32133
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@300487 91177308-0d34-0410-b5e6-96231b3b80d8
---
lib/CodeGen/CGCall.cpp | 5 +++--
test/CodeGenOpenCL/byval.cl | 18 ++++++++++++++++++
2 files changed, 21 insertions(+), 2 deletions(-)
create mode 100644 test/CodeGenOpenCL/byval.cl
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index 8af32055fc4..8e25dc2cd70 100644
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -1586,9 +1586,10 @@ CodeGenTypes::GetFunctionType(const CGFunctionInfo &FI) {
case ABIArgInfo::Indirect: {
assert(NumIRArgs == 1);
- // indirect arguments are always on the stack, which is addr space #0.
+ // indirect arguments are always on the stack, which is alloca addr space.
llvm::Type *LTy = ConvertTypeForMem(it->type);
- ArgTypes[FirstIRArg] = LTy->getPointerTo();
+ ArgTypes[FirstIRArg] = LTy->getPointerTo(
+ CGM.getDataLayout().getAllocaAddrSpace());
break;
}
diff --git a/test/CodeGenOpenCL/byval.cl b/test/CodeGenOpenCL/byval.cl
new file mode 100644
index 00000000000..1a8105c5207
--- /dev/null
+++ b/test/CodeGenOpenCL/byval.cl
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -emit-llvm -o - -triple amdgcn %s | FileCheck %s
+// RUN: %clang_cc1 -emit-llvm -o - -triple amdgcn---amdgizcl %s | FileCheck %s -check-prefix=AMDGIZ
+
+struct A {
+ int x[100];
+};
+
+int f(struct A a);
+
+int g() {
+ struct A a;
+ // CHECK: call i32 @f(%struct.A* byval{{.*}}%a)
+ // AMDGIZ: call i32 @f(%struct.A addrspace(5)* byval{{.*}}%a)
+ return f(a);
+}
+
+// CHECK: declare i32 @f(%struct.A* byval{{.*}})
+// AMDGIZ: declare i32 @f(%struct.A addrspace(5)* byval{{.*}})
--
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