| 1 | // RUN: %clang_cc1 -triple x86_64-apple-macosx10.7.0 %s -emit-llvm -o - | FileCheck %s |
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| 2 | |
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| 3 | // CHECK: %{{[a-z0-9]+}} = notail call i32 @callee0(i32 % |
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| 4 | // CHECK: %{{[a-z0-9]+}} = notail call i32 @callee1(i32 % |
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| 5 | |
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| 6 | // Check that indirect calls do not have the notail marker. |
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| 7 | // CHECK: store i32 (i32)* @callee1, i32 (i32)** [[ALLOCA1:%[A-Za-z0-9]+]], align 8 |
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| 8 | // CHECK: [[INDIRFUNC:%[0-9]+]] = load i32 (i32)*, i32 (i32)** [[ALLOCA1]], align 8 |
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| 9 | // CHECK: %{{[a-z0-9]+}} = call i32 [[INDIRFUNC]](i32 %{{[0-9]+}} |
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| 10 | |
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| 11 | // CHECK: %{{[a-z0-9]+}} = call i32 @callee2(i32 % |
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| 12 | |
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| 13 | int callee0(int a) __attribute__((not_tail_called)) { |
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| 14 | return a + 1; |
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| 15 | } |
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| 16 | |
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| 17 | int callee1(int) __attribute__((not_tail_called)); |
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| 18 | |
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| 19 | int callee2(int); |
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| 20 | |
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| 21 | typedef int (*FuncTy)(int); |
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| 22 | |
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| 23 | int foo0(int a) { |
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| 24 | if (a > 1) |
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| 25 | return callee0(a); |
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| 26 | if (a == 1) |
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| 27 | return callee1(a); |
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| 28 | if (a < 0) { |
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| 29 | FuncTy F = callee1; |
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| 30 | return (*F)(a); |
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| 31 | } |
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| 32 | return callee2(a); |
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| 33 | } |
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| 34 | |
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