Files
clang-p2996/clang/test/CodeGen/default-address-space.c
Yaxun Liu b34ec829be [OpenCL] Map default address space to alloca address space
For OpenCL, the private address space qualifier is 0 in AST. Before this change, 0 address space qualifier
is always mapped to target address space 0. As now target private address space is specified by
alloca address space in data layout, address space qualifier 0 needs to be mapped to alloca addr space specified by the data layout.

This change has no impact on targets whose alloca addr space is 0.

With contributions from Matt Arsenault, Tony Tye and Wen-Heng (Jack) Chung

Differential Revision: https://reviews.llvm.org/D31404

llvm-svn: 299965
2017-04-11 17:24:23 +00:00

59 lines
2.1 KiB
C

// RUN: %clang_cc1 -triple amdgcn -emit-llvm < %s | FileCheck -check-prefixes=PIZ,COM %s
// RUN: %clang_cc1 -triple amdgcn---amdgiz -emit-llvm < %s | FileCheck -check-prefixes=CHECK,COM %s
// PIZ-DAG: @foo = common addrspace(4) global i32 0
// CHECK-DAG: @foo = common global i32 0
int foo;
// PIZ-DAG: @ban = common addrspace(4) global [10 x i32] zeroinitializer
// CHECK-DAG: @ban = common global [10 x i32] zeroinitializer
int ban[10];
// PIZ-DAG: @A = common addrspace(4) global i32 addrspace(4)* null
// PIZ-DAG: @B = common addrspace(4) global i32 addrspace(4)* null
// CHECK-DAG: @A = common global i32* null
// CHECK-DAG: @B = common global i32* null
int *A;
int *B;
// COM-LABEL: define i32 @test1()
// PIZ: load i32, i32 addrspace(4)* @foo
// CHECK: load i32, i32* @foo
int test1() { return foo; }
// COM-LABEL: define i32 @test2(i32 %i)
// PIZ: load i32, i32 addrspace(4)*
// PIZ-NEXT: ret i32
// CHECK: load i32, i32*
// CHECK-NEXT: ret i32
int test2(int i) { return ban[i]; }
// COM-LABEL: define void @test3()
// PIZ: load i32 addrspace(4)*, i32 addrspace(4)* addrspace(4)* @B
// PIZ: load i32, i32 addrspace(4)*
// PIZ: load i32 addrspace(4)*, i32 addrspace(4)* addrspace(4)* @A
// PIZ: store i32 {{.*}}, i32 addrspace(4)*
// CHECK: load i32*, i32** @B
// CHECK: load i32, i32*
// CHECK: load i32*, i32** @A
// CHECK: store i32 {{.*}}, i32*
void test3() {
*A = *B;
}
// PIZ-LABEL: define void @test4(i32 addrspace(4)* %a)
// PIZ: %[[a_addr:.*]] = alloca i32 addrspace(4)*
// PIZ: store i32 addrspace(4)* %a, i32 addrspace(4)** %[[a_addr]]
// PIZ: %[[r0:.*]] = load i32 addrspace(4)*, i32 addrspace(4)** %[[a_addr]]
// PIZ: %[[arrayidx:.*]] = getelementptr inbounds i32, i32 addrspace(4)* %[[r0]]
// PIZ: store i32 0, i32 addrspace(4)* %[[arrayidx]]
// CHECK-LABEL: define void @test4(i32* %a)
// CHECK: %[[a_addr:.*]] = alloca i32*, align 4, addrspace(5)
// CHECK: store i32* %a, i32* addrspace(5)* %[[a_addr]]
// CHECK: %[[r0:.*]] = load i32*, i32* addrspace(5)* %[[a_addr]]
// CHECK: %[[arrayidx:.*]] = getelementptr inbounds i32, i32* %[[r0]]
// CHECK: store i32 0, i32* %[[arrayidx]]
void test4(int *a) {
a[0] = 0;
}