| 1 | // RUN: %clang_cc1 -x c++-header -triple x86_64-apple-darwin11 -emit-pch -O1 -fblocks -fno-escaping-block-tail-calls -o %t %S/no-escaping-block-tail-calls.h |
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| 2 | // RUN: %clang_cc1 -triple x86_64-apple-darwin11 -include-pch %t -emit-llvm -O1 -fblocks -fno-escaping-block-tail-calls -o - %s | FileCheck %s |
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| 3 | |
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| 4 | // Check that -fno-escaping-block-tail-calls doesn't disable tail-call |
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| 5 | // optimization if the block is non-escaping. |
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| 6 | |
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| 7 | // CHECK-LABEL: define internal i32 @___ZN1S1mEv_block_invoke( |
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| 8 | // CHECK: %[[CALL:.*]] = tail call i32 @_ZN1S3fooER2S0( |
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| 9 | // CHECK-NEXT: ret i32 %[[CALL]] |
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| 10 | |
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| 11 | void test() { |
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| 12 | S s; |
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| 13 | s.m(); |
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| 14 | } |
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| 15 | |
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