53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
|
// Check the various ways in which the three classes of values
|
||
|
|
// (scalar, complex, aggregate) interact with parameter passing
|
||
|
|
// (function entry, function return, call argument, call result).
|
||
|
|
//
|
||
|
|
// We also check _Bool and empty structures, as these can have annoying
|
||
|
|
// corner cases.
|
||
|
|
|
||
|
|
// RUN: %clang_cc1 %s -triple i386-unknown-unknown -O3 -emit-llvm -o - | FileCheck %s
|
||
|
|
// RUN: %clang_cc1 %s -triple x86_64-unknown-unknown -O3 -emit-llvm -o - | FileCheck %s
|
||
|
|
// RUN: %clang_cc1 %s -triple powerpc-unknown-unknown -O3 -emit-llvm -o - | FileCheck %s
|
||
|
|
// CHECK-NOT: @g0
|
||
|
|
|
||
|
|
typedef _Bool BoolTy;
|
||
|
|
typedef int ScalarTy;
|
||
|
|
typedef _Complex int ComplexTy;
|
||
|
|
typedef struct { int a, b, c; } AggrTy;
|
||
|
|
typedef struct { int a[0]; } EmptyTy;
|
||
|
|
|
||
|
|
static int result;
|
||
|
|
|
||
|
|
static BoolTy bool_id(BoolTy a) { return a; }
|
||
|
|
static AggrTy aggr_id(AggrTy a) { return a; }
|
||
|
|
static EmptyTy empty_id(EmptyTy a) { return a; }
|
||
|
|
static ScalarTy scalar_id(ScalarTy a) { return a; }
|
||
|
|
static ComplexTy complex_id(ComplexTy a) { return a; }
|
||
|
|
|
||
|
|
static void bool_mul(BoolTy a) { result *= a; }
|
||
|
|
|
||
|
|
static void aggr_mul(AggrTy a) { result *= a.a * a.b * a.c; }
|
||
|
|
|
||
|
|
static void empty_mul(EmptyTy a) { result *= 53; }
|
||
|
|
|
||
|
|
static void scalar_mul(ScalarTy a) { result *= a; }
|
||
|
|
|
||
|
|
static void complex_mul(ComplexTy a) { result *= __real a * __imag a; }
|
||
|
|
|
||
|
|
extern void g0(void);
|
||
|
|
|
||
|
|
void f0(void) {
|
||
|
|
result = 1;
|
||
|
|
|
||
|
|
bool_mul(bool_id(1));
|
||
|
|
aggr_mul(aggr_id((AggrTy) { 2, 3, 5}));
|
||
|
|
empty_mul(empty_id((EmptyTy) {}));
|
||
|
|
scalar_mul(scalar_id(7));
|
||
|
|
complex_mul(complex_id(11 + 13i));
|
||
|
|
|
||
|
|
// This call should be eliminated.
|
||
|
|
if (result != 2 * 3 * 5 * 7 * 11 * 13 * 53)
|
||
|
|
g0();
|
||
|
|
}
|
||
|
|
|