481bb44baa
On SystemZ, the vector ABI changes depending on the presence of hardware vector support. Therefore, each binary compiled with a visible vector ABI (e.g. one that calls an external function with a vector argument) should be marked with a .gnu_attribute describing this. Reviewed By: uweigand Differential Revision: https://reviews.llvm.org/D105067
21 lines
470 B
C
21 lines
470 B
C
// RUN: %clang_cc1 -triple s390x-ibm-linux -emit-llvm -fzvector -o - %s 2>&1 \
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// RUN: | FileCheck %s
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//
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// Test the emission of the "s390x-visible-vector-ABI" module flag.
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// Use of va_arg with a vector type exposes the vector ABI.
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#include <stdarg.h>
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static int bar(va_list vl) {
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return va_arg(vl, vector int)[0];
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}
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int foo(va_list vl) {
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return bar(vl);
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}
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//CHECK: !llvm.module.flags = !{!0, !1}
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//CHECK: !0 = !{i32 2, !"s390x-visible-vector-ABI", i32 1}
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