| 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 | void t1() __attribute__((naked)); |
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| 4 | |
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| 5 | // Basic functionality check |
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| 6 | // (Note that naked needs to imply noinline to work properly.) |
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| 7 | // CHECK: define void @t1() [[NAKED_OPTNONE:#[0-9]+]] { |
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| 8 | void t1() |
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| 9 | { |
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| 10 | } |
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| 11 | |
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| 12 | // Make sure this doesn't explode in the verifier. |
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| 13 | // (It doesn't really make sense, but it isn't invalid.) |
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| 14 | // CHECK: define void @t2() [[NAKED:#[0-9]+]] { |
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| 15 | __attribute((naked, always_inline)) void t2() { |
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| 16 | } |
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| 17 | |
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| 18 | // Make sure not to generate prolog or epilog for naked functions. |
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| 19 | __attribute((naked)) void t3(int x) { |
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| 20 | // CHECK: define void @t3(i32) |
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| 21 | // CHECK-NOT: alloca |
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| 22 | // CHECK-NOT: store |
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| 23 | // CHECK: unreachable |
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| 24 | } |
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| 25 | |
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| 26 | // CHECK: attributes [[NAKED_OPTNONE]] = { naked noinline nounwind optnone{{.*}} } |
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| 27 | // CHECK: attributes [[NAKED]] = { naked noinline nounwind{{.*}} } |
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| 28 | |
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