You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
93 lines
3.1 KiB
93 lines
3.1 KiB
4 months ago
|
// RUN: %Slang %s
|
||
|
|
|
||
|
|
// RUN: %rs-filecheck-wrapper %s --check-prefix=CHECK-LL
|
||
|
|
// Check that the data types are properly padded:
|
||
|
|
// CHECK-LL: %struct.NoBitfield{{(\.[0-9]+)?}} = type { i32, [4 x i8], i64, float, [4 x i8] }
|
||
|
|
// CHECK-LL: %struct.Bitfield{{(\.[0-9]+)?}} = type { i32, [4 x i8], i64, i8 }
|
||
|
|
// Check that only NoBitfield is exported:
|
||
|
|
// CHECK-LL: !\23rs_export_type = !{![[NODE:[0-9]+]]}
|
||
|
|
// CHECK-LL: ![[NODE]] = !{!"NoBitfield"}
|
||
|
|
|
||
|
|
// RUN: %scriptc-filecheck-wrapper --lang=Java --type=NoBitfield --check-prefix=CHECK-JAVA-STRUCT %s
|
||
|
|
// CHECK-JAVA-STRUCT: public static Element createElement(RenderScript rs) {
|
||
|
|
// CHECK-JAVA-STRUCT-NEXT: Element.Builder eb = new Element.Builder(rs);
|
||
|
|
// CHECK-JAVA-STRUCT-NEXT: eb.add(Element.I32(rs), "I");
|
||
|
|
// CHECK-JAVA-STRUCT-NEXT: eb.add(Element.U32(rs), "#rs_padding_1");
|
||
|
|
// CHECK-JAVA-STRUCT-NEXT: eb.add(Element.I64(rs), "L");
|
||
|
|
// CHECK-JAVA-STRUCT-NEXT: eb.add(Element.F32(rs), "F");
|
||
|
|
// CHECK-JAVA-STRUCT-NEXT: eb.add(Element.U32(rs), "#rs_padding_2");
|
||
|
|
// CHECK-JAVA-STRUCT-NEXT: return eb.create();
|
||
|
|
// CHECK-JAVA-STRUCT-NEXT: }
|
||
|
|
|
||
|
|
#pragma version(1)
|
||
|
|
#pragma rs java_package_name(foo)
|
||
|
|
|
||
|
|
// There is a C99 rule (under "Structure and union members") that
|
||
|
|
// reads "One special guarantee is made in order to simplify the use
|
||
|
|
// of unions: if a union contains several structures that share a
|
||
|
|
// common initial sequence, and if the union object currently contains
|
||
|
|
// one of these structures, it is permitted to inspect the common
|
||
|
|
// initial part of any of them anywhere that a declaration of the
|
||
|
|
// completed type of the union is visible. Two structures share a
|
||
|
|
// common initial sequence if corresponding members have compatible
|
||
|
|
// types (and, for bit-fields, the same widths) for a sequence of one
|
||
|
|
// or more initial members."
|
||
|
|
//
|
||
|
|
// We want to ensure that the common initial sequences of exported
|
||
|
|
// and non-exported types have the same layout.
|
||
|
|
|
||
|
|
// An exported type (because we declare a global variable of this type)
|
||
|
|
struct NoBitfield {
|
||
|
|
int I;
|
||
|
|
// expect 4 bytes of padding here
|
||
|
|
long L;
|
||
|
|
float F;
|
||
|
|
// expect 4 bytes of padding here
|
||
|
|
};
|
||
|
|
|
||
|
|
struct NoBitfield junk; // just to make this an exported type
|
||
|
|
|
||
|
|
// A non-exported type that shares a common initial sequence with NoBitfield
|
||
|
|
struct Bitfield {
|
||
|
|
int I;
|
||
|
|
// expect 4 bytes of padding here
|
||
|
|
long L;
|
||
|
|
uint U:3;
|
||
|
|
};
|
||
|
|
|
||
|
|
union CommonInitialSequence {
|
||
|
|
struct NoBitfield nbf;
|
||
|
|
struct Bitfield bf;
|
||
|
|
};
|
||
|
|
|
||
|
|
static union CommonInitialSequence U, V;
|
||
|
|
|
||
|
|
static struct NoBitfield *nbf;
|
||
|
|
static struct Bitfield * bf;
|
||
|
|
|
||
|
|
// Note: Sets through the exported type (NoBitfield)
|
||
|
|
void setUnion(long argL, int argI) {
|
||
|
|
nbf->L = argL;
|
||
|
|
nbf->I = argI;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool failed = false;
|
||
|
|
|
||
|
|
// Note: Tests through the non-exported type (Bitfield)
|
||
|
|
void testUnion(long argL, int argI) {
|
||
|
|
failed |= ((bf->I != argI) || (bf->L != argL));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Note: Prevent compiler from optimizing setUnion()/testUnion()
|
||
|
|
// to convert indirect accesses through nbf/bf into direct
|
||
|
|
// accesses through U or V.
|
||
|
|
void choose(int i) {
|
||
|
|
if (i) {
|
||
|
|
nbf = &U.nbf;
|
||
|
|
bf = &U. bf;
|
||
|
|
} else {
|
||
|
|
nbf = &V.nbf;
|
||
|
|
bf = &V. bf;
|
||
|
|
}
|
||
|
|
}
|