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135 lines
5.7 KiB
C++
135 lines
5.7 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir
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// RUN: FileCheck --check-prefix=CIR --input-file=%t.cir %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll
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// RUN: FileCheck --check-prefix=LLVM --input-file=%t-cir.ll %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll
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// RUN: FileCheck --input-file=%t.ll %s -check-prefix=OGCG
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void foo(void) {
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// CIR-LABEL: cir.func no_inline dso_local @_Z3foov()
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// CIR: %[[V0:.*]] = cir.alloca !cir.array<!cir.float x 4>, !cir.ptr<!cir.array<!cir.float x 4>>, ["f4"] {alignment = 16 : i64}
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// CIR: %[[V1:.*]] = cir.alloca !cir.array<!cir.float x 8>, !cir.ptr<!cir.array<!cir.float x 8>>, ["f8"] {alignment = 16 : i64}
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// CIR: %[[V2:.*]] = cir.cast array_to_ptrdecay %[[V0]] : !cir.ptr<!cir.array<!cir.float x 4>> -> !cir.ptr<!cir.float>
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// CIR: %[[V3:.*]] = cir.cast bitcast %[[V2]] : !cir.ptr<!cir.float> -> !cir.ptr<!void>
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// CIR: %[[V4:.*]] = cir.cast array_to_ptrdecay %[[V1]] : !cir.ptr<!cir.array<!cir.float x 8>> -> !cir.ptr<!cir.float>
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// CIR: %[[V5:.*]] = cir.cast bitcast %[[V4]] : !cir.ptr<!cir.float> -> !cir.ptr<!void>
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// CIR: %[[V6:.*]] = cir.const #cir.int<4> : !u64i
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// CIR: %[[V7:.*]] = cir.const #cir.int<4> : !u64i
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// CIR: %[[V8:.*]] = cir.mul %[[V6]], %[[V7]] : !u64i
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// CIR: cir.libc.memmove %[[V8]] bytes from %[[V3]] to %[[V5]] : !cir.ptr<!void>, !u64i
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// CIR: cir.return
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// LLVM-LABEL: define dso_local void @_Z3foov()
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// LLVM: %[[V1:.*]] = alloca [4 x float], i64 1, align 16
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// LLVM: %[[V2:.*]] = alloca [8 x float], i64 1, align 16
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// LLVM: %[[V3:.*]] = getelementptr float, ptr %[[V1]], i32 0
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// LLVM: %[[V4:.*]] = getelementptr float, ptr %[[V2]], i32 0
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// LLVM: call void @llvm.memmove.p0.p0.i64(ptr %[[V4]], ptr %[[V3]], i64 16, i1 false)
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// LLVM: ret void
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// OGCG-LABEL: define dso_local void @_Z3foov()
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// OGCG: %[[V1:.*]] = alloca [4 x float], align 16
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// OGCG: %[[V2:.*]] = alloca [8 x float], align 16
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// OGCG: %[[V3:.*]] = getelementptr inbounds [4 x float], ptr %[[V1]], i64 0, i64 0
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// OGCG: %[[V4:.*]] = getelementptr inbounds [8 x float], ptr %[[V2]], i64 0, i64 0
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// OGCG: call void @llvm.memmove.p0.p0.i64(ptr align 16 %[[V4]], ptr align 16 %[[V3]], i64 16, i1 false)
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// OGCG: ret void
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float f4[4];
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float f8[8];
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__builtin_bcopy(f4, f8, sizeof(float) * 4);
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}
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void test_conditional_bcopy(void) {
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// CIR-LABEL: cir.func {{.*}} @_Z22test_conditional_bcopyv()
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// CIR: cir.ternary
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// CIR: cir.ternary
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// CIR: cir.libc.memmove {{.*}} bytes from {{.*}} to {{.*}} : !cir.ptr<!void>, !u64i
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// CIR: false
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// CIR: false
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// CIR: cir.libc.memmove {{.*}} bytes from {{.*}} to {{.*}} : !cir.ptr<!void>, !u64i
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// LLVM-LABEL: define{{.*}} void @_Z22test_conditional_bcopyv
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// LLVM: br
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// LLVM: call void @llvm.memmove
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// LLVM: br
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// LLVM: call void @llvm.memmove
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// LLVM-NOT: phi
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// OGCG-LABEL: define{{.*}} void @_Z22test_conditional_bcopyv
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// LLVM: br
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// OGCG: call void @llvm.memmove
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// LLVM: br
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// OGCG: call void @llvm.memmove
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// OGCG-NOT: phi
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char dst[20];
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char src[20];
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int _sz = 20, len = 20;
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return (_sz ? ((_sz >= len) ? __builtin_bcopy(src, dst, len) : foo())
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: __builtin_bcopy(src, dst, len));
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}
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void another_conditional_bcopy(char *dst, char *src, int sz, int len) {
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// CIR-LABEL: cir.func no_inline dso_local @_Z25another_conditional_bcopyPcS_ii
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// CIR: cir.if
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// CIR: cir.libc.memmove {{.*}} bytes from {{.*}} to {{.*}} : !cir.ptr<!void>, !u64i
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// cir: else
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// CIR: cir.libc.memmove {{.*}} bytes from {{.*}} to {{.*}} : !cir.ptr<!void>, !u64i
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// LLVM-LABEL: define{{.*}} void @_Z25another_conditional_bcopyPcS_ii
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// LLVM: br
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// LLVM: call void @llvm.memmove
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// LLVM: br
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// LLVM: call void @llvm.memmove
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// LLVM-NOT: phi
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// OGCG-LABEL: define{{.*}} void @_Z25another_conditional_bcopyPcS_ii
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// OGCG: br
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// OGCG: call void @llvm.memmove
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// OGCG: br
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// OGCG: call void @llvm.memmove
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// OGCG-NOT: phi
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if (sz >= len)
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__builtin_bcopy(src, dst, len);
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else
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__builtin_bcopy(src, dst, len * 2);
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}
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#define size_t __SIZE_TYPE__
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extern "C" void bcopy(const void *__src, void *__dest, size_t __n);
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// CIR: @_Z9testbcopyPKvPvm(
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// CIR: cir.libc.memmove {{.*}} bytes from {{.*}} to {{.*}} : !cir.ptr<!void>, !u64i
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// CIR: cir.return
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// LLVM: @_Z9testbcopyPKvPvm(
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// LLVM: call void @llvm.memmove.p0.p0.i64(ptr {{.*}}, ptr {{.*}}, i64 {{.*}}, i1 false)
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// LLVM: ret void
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// OGCG: @_Z9testbcopyPKvPvm(
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// OGCG: call void @llvm.memmove.p0.p0.i64(ptr {{.*}}, ptr {{.*}}, i64 {{.*}}, i1 false)
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// OGCG: ret void
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void testbcopy(const void *src, void *dest, size_t n) {
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bcopy(src, dest, n);
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}
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// CIR-LABEL: @testaddressof(
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// CIR: %[[SRC:.*]] = cir.alloca !cir.ptr<!s8i>, !cir.ptr<!cir.ptr<!s8i>>, ["src", init]
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// CIR: %[[DEST:.*]] = cir.alloca !cir.ptr<!s8i>, !cir.ptr<!cir.ptr<!s8i>>, ["dest", init]
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// CIR: %[[SRC_TO_VOIDPTR:.*]] = cir.cast bitcast %[[SRC]] : !cir.ptr<!cir.ptr<!s8i>> -> !cir.ptr<!void>
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// CIR: %[[DEST_TO_VOIDPTR:.*]] = cir.cast bitcast %[[DEST]] : !cir.ptr<!cir.ptr<!s8i>> -> !cir.ptr<!void>
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// CIR: cir.libc.memmove {{.*}} bytes from %[[SRC_TO_VOIDPTR]] to %[[DEST_TO_VOIDPTR]]
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// LLVM-LABEL: @testaddressof(
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// LLVM: %[[SRC:.*]] = alloca ptr
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// LLVM: %[[DEST:.*]] = alloca ptr
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// LLVM: call void @llvm.memmove.p0.p0.i64(ptr %[[DEST]], ptr %[[SRC]], i64 {{.*}}, i1 false)
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// OGCG-LABEL: @testaddressof(
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// OGCG: %[[SRC:.*]] = alloca ptr
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// OGCG: %[[DEST:.*]] = alloca ptr
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// OGCG: call void @llvm.memmove.p0.p0.i64(ptr {{.*}}%[[DEST]], ptr {{.*}}%[[SRC]], i64 {{.*}}, i1 false)
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extern "C" void testaddressof(const char *src, const char *dest, size_t n) {
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__builtin_bcopy(__builtin_addressof(src), __builtin_addressof(dest), n);
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}
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