13 lines
617 B
C
13 lines
617 B
C
/// Check that the new alignment set by the alignment builtins is propagated
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/// to e.g. llvm.memcpy calls.
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// RUN: %clang_cc1 -triple=x86_64-unknown-unknown %s -emit-llvm -O1 -o - | FileCheck %s
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// CHECK-LABEL: define {{[^@]+}}@align_up
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 64 dereferenceable(16) {{%.+}}, i8* nonnull align 1 dereferenceable(16) {{%.+}}, i64 16, i1 false)
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// CHECK-NEXT: ret void
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//
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void align_up(void* data, int* ptr) {
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// The call to llvm.memcpy should have an "align 64" on the first argument
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__builtin_memcpy(__builtin_align_up(ptr, 64), data, 16);
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}
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