llvm-project/clang/test/CodeGen/blocks-opencl.cl

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// RUN: %clang_cc1 -O0 %s -ffake-address-space-map -emit-llvm -o - -fblocks -triple x86_64-unknown-unknown | FileCheck %s
// This used to crash due to trying to generate a bitcase from a cstring
// in the constant address space to i8* in AS0.
void dummy(float (^op)(float))
{
}
// CHECK: i8 addrspace(3)* getelementptr inbounds ([9 x i8] addrspace(3)* @.str, i32 0, i32 0)
kernel void test_block()
{
float (^X)(float) = ^(float x) { return x + 42.0f; };
dummy(X);
}