A mishap or a bug in ISPC? (pointer assignment issue)

[Tomek]

Hi:)

I would like to do this:

/* a simple case */

static uniform float a = 1.0;

static uniform float * uniform pa = &a; /* this fails */

/* here is what I'd really like to do */

static const uniform float b[] = {0.};

static const uniform float c[] = {0.};

static const uniform float * uniform pv[] = {NULL, b, c}; /* this also fails */

When trying to compile, the result is:

ispc -g --arch=x86-64  --target=sse2,sse4-x2,avx bug7.ispc -o objs/bug7_ispc.o -h objs/bug7_ispc.h

bug7.ispc:3:37: Error: Initializer for global variable "pa" must be a constant. 

static uniform float * uniform pa = &a; /* this fails */

                                    ^^

bug7.ispc:8:46: Error: Initializer for global variable "pv" must be a constant. 

static const uniform float * uniform pv[] = {NULL, b, c}; /* this also fails */

                                             ^^^^^^^^^^

Would that be an issue within ISPC, or am I missing something?

Thank you:)

Tomek

[Dmitry Babokin]

Hi Tomek,

It's definitely a bug. In both cases address of static variable is a constant, so it should work as it works in C. please file bug, we'll fix it.

Dmitry.

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[Tomek]

Thank you:) Done:)