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llvm-project/clang/test/CodeGenOpenCL/amdgcn-large-globals.cl

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Fix array sizes where address space is not yet known For variables in generic address spaces, for example: ``` unsigned char V[6442450944]; ... ``` the address space is not yet known when we get into *getConstantArrayType*, it is 0. AMDGCN target's address space 0 has 32 bits pointers, so when we call *getPointerWidth* with 0, the array size is trimmed to 32 bits, which is not right. Differential Revision: https://reviews.llvm.org/D30845 llvm-svn: 298420
2017-03-22 02:55:39 +08:00
// REQUIRES: amdgpu-registered-target
// RUN: %clang_cc1 -cl-std=CL2.0 -triple amdgcn-unknown-unknown -S -emit-llvm -o - %s | FileCheck %s
// CHECK: @One = common local_unnamed_addr addrspace(1) global [6442450944 x i8] zeroinitializer, align 1
unsigned char One[6442450944];
// CHECK: @Two = common local_unnamed_addr addrspace(1) global [6442450944 x i32] zeroinitializer, align 4
global unsigned int Two[6442450944];
kernel void large_globals(unsigned int id) {
One[id] = id;
Two[id + 1] = id + 1;
}