fcc61927ad
Struct member accesses via GetMemberOp are always inbounds and cannot unsigned-wrap, matching LLVM's IRBuilder::CreateStructGEP behavior.
71 lines
3.2 KiB
C++
71 lines
3.2 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 --check-prefix=OGCG --input-file=%t.ll %s
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struct S {
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int Member;
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int InlineFunc() {
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return Member;
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}
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};
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// CIR: !rec_S = !cir.record<struct "S" {!s32i}>
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// LLVM: %struct.S = type { i32 }
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// OGCG: %struct.S = type { i32 }
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// CIR: cir.func{{.*}} @_ZN1S10InlineFuncEv(%arg0: !cir.ptr<!rec_S> {{.*}}) -> (!s32i {{.*}})
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// CIR: %[[THIS_ADDR:.*]] = cir.alloca !cir.ptr<!rec_S>, !cir.ptr<!cir.ptr<!rec_S>>, ["this", init]
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// CIR: %[[RET_ADDR:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["__retval"]
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// CIR: cir.store %arg0, %[[THIS_ADDR]] : !cir.ptr<!rec_S>, !cir.ptr<!cir.ptr<!rec_S>>
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// CIR: %[[THIS:.*]] = cir.load %[[THIS_ADDR]] : !cir.ptr<!cir.ptr<!rec_S>>, !cir.ptr<!rec_S>
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// CIR: %[[MEMBER_ADDR:.*]] = cir.get_member %[[THIS]][0] {name = "Member"} : !cir.ptr<!rec_S> -> !cir.ptr<!s32i>
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// CIR: %[[MEMBER:.*]] = cir.load{{.*}} %[[MEMBER_ADDR]] : !cir.ptr<!s32i>, !s32i
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// CIR: cir.store %[[MEMBER]], %[[RET_ADDR]] : !s32i, !cir.ptr<!s32i>
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// CIR: %[[RET_VAL:.*]] = cir.load %[[RET_ADDR]] : !cir.ptr<!s32i>, !s32i
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// CIR: cir.return %[[RET_VAL]] : !s32i
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// LLVM: define{{.*}} i32 @_ZN1S10InlineFuncEv(ptr{{.*}} %[[ARG0:.*]])
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// LLVM: %[[THIS_ADDR:.*]] = alloca ptr, i64 1, align 8
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// LLVM: %[[RET_ADDR:.*]] = alloca i32, i64 1, align 4
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// LLVM: store ptr %[[ARG0]], ptr %[[THIS_ADDR]], align 8
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// LLVM: %[[THIS:.*]] = load ptr, ptr %[[THIS_ADDR]], align 8
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// LLVM: %[[MEMBER_ADDR:.*]] = getelementptr inbounds nuw %struct.S, ptr %[[THIS]], i32 0, i32 0
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// LLVM: %[[MEMBER:.*]] = load i32, ptr %[[MEMBER_ADDR]], align 4
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// LLVM: store i32 %[[MEMBER]], ptr %[[RET_ADDR]], align 4
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// LLVM: %[[RET_VAL:.*]] = load i32, ptr %[[RET_ADDR]], align 4
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// LLVM: ret i32 %[[RET_VAL]]
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// The inlined function is defined after use() in OGCG
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void use() {
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S s;
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s.InlineFunc();
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}
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// CIR: cir.func{{.*}} @_Z3usev()
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// CIR: %[[S_ADDR:.*]] = cir.alloca !rec_S, !cir.ptr<!rec_S>, ["s"]
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// CIR: %[[RET_VAL:.*]] = cir.call @_ZN1S10InlineFuncEv(%[[S_ADDR]]) : (!cir.ptr<!rec_S> {{.*}}) -> (!s32i {{.*}})
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// CIR: cir.return
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// LLVM: define{{.*}} void @_Z3usev()
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// LLVM: %[[S_ADDR:.*]] = alloca %struct.S
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// LLVM: %[[RET_VAL:.*]] = call{{.*}} i32 @_ZN1S10InlineFuncEv(ptr{{.*}} %[[S_ADDR]])
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// LLVM: ret void
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// OGCG: define{{.*}} void @_Z3usev()
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// OGCG: %[[S_ADDR:.*]] = alloca %struct.S
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// OGCG: %[[RET_VAL:.*]] = call{{.*}} i32 @_ZN1S10InlineFuncEv(ptr{{.*}} %[[S_ADDR]])
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// OGCG: ret void
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// OGCG: define{{.*}} i32 @_ZN1S10InlineFuncEv(ptr{{.*}} %[[ARG0:.*]])
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// OGCG: %[[THIS_ADDR:.*]] = alloca ptr, align 8
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// OGCG: store ptr %[[ARG0]], ptr %[[THIS_ADDR]], align 8
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// OGCG: %[[THIS:.*]] = load ptr, ptr %[[THIS_ADDR]], align 8
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// OGCG: %[[MEMBER_ADDR:.*]] = getelementptr inbounds nuw %struct.S, ptr %[[THIS]], i32 0, i32 0
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// OGCG: %[[MEMBER:.*]] = load i32, ptr %[[MEMBER_ADDR]], align 4
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// OGCG: ret i32 %[[MEMBER]]
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