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comparison clang/test/CodeGen/builtin-align-assumption.c @ 207:2e18cbf3894f

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LLVM12
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 08 Jun 2021 06:07:14 +0900
parents 1d019706d866
children c4bab56944e8
comparison
equal deleted inserted replaced
173:0572611fdcc8 207:2e18cbf3894f
1 /// Check that the new alignment set by the alignment builtins is propagated 1 /// Check that the new alignment set by the alignment builtins is propagated
2 /// to e.g. llvm.memcpy calls. 2 /// to e.g. llvm.memcpy calls.
3 // RUN: %clang_cc1 -triple=x86_64-unknown-unknown %s -emit-llvm -O1 -o - | FileCheck %s 3 // RUN: %clang_cc1 -triple=x86_64-unknown-unknown %s -emit-llvm -O1 -o - | FileCheck %s
4 4
5 // CHECK-LABEL: define {{[^@]+}}@align_up 5 // CHECK-LABEL: define {{[^@]+}}@align_up
6 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 64 dereferenceable(16) {{%.+}}, i8* nonnull align 1 dereferenceable(16) {{%.+}}, i64 16, i1 false) 6 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* noundef nonnull align 64 dereferenceable(16) {{%.+}}, i8* noundef nonnull align 1 dereferenceable(16) {{%.+}}, i64 16, i1 false)
7 // CHECK-NEXT: ret void 7 // CHECK-NEXT: ret void
8 // 8 //
9 void align_up(void* data, int* ptr) { 9 void align_up(void* data, int* ptr) {
10 // The call to llvm.memcpy should have an "align 64" on the first argument 10 // The call to llvm.memcpy should have an "align 64" on the first argument
11 __builtin_memcpy(__builtin_align_up(ptr, 64), data, 16); 11 __builtin_memcpy(__builtin_align_up(ptr, 64), data, 16);