| 1 | // RUN: %clang_cc1 -triple sparc-unknown-unknown -emit-llvm -o - %s | FileCheck %s |
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| 2 | |
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| 3 | // Ensure that we pass proper alignment to llvm in the call |
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| 4 | // instruction. The proper alignment for the type is sometimes known |
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| 5 | // only by clang, and is not manifest in the LLVM-type. So, it must be |
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| 6 | // explicitly passed through. (Besides the case of the user specifying |
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| 7 | // alignment, as here, this situation also occurrs for non-POD C++ |
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| 8 | // structs with tail-padding: clang emits these as packed llvm-structs |
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| 9 | // for ABI reasons.) |
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| 10 | |
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| 11 | struct s1 { |
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| 12 | int x; |
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| 13 | } __attribute__((aligned(8))); |
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| 14 | |
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| 15 | struct s1 x1; |
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| 16 | |
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| 17 | |
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| 18 | // Ensure the align 8 is passed through: |
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| 19 | // CHECK-LABEL: define void @f1() |
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| 20 | // CHECK: call void @f1_helper(%struct.s1* byval align 8 @x1) |
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| 21 | // Also ensure the declaration of f1_helper includes it |
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| 22 | // CHECK: declare void @f1_helper(%struct.s1* byval align 8) |
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| 23 | |
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| 24 | void f1_helper(struct s1); |
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| 25 | void f1() { |
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| 26 | f1_helper(x1); |
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| 27 | } |
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| 28 | |
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