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