llvm-project/clang/test/CIR/CodeGen/nullptr-init.cpp
Andy Kaylor ea3c225786
[CIR] Add alignment support for global, store, and load ops (#141163)
This adds alignment support for GlobalOp, LoadOp, and StoreOp.

Tests which failed because cir.store/cir.load now print alignment were
updated with wildcard matches, except where the alignment was relevant
to the test. Tests which check for cir.store/cir.load in cases that
don't have explicit alignment were not updated.

New tests for alignment are alignment.c, align-load.c, and
align-store.c.
2025-05-23 15:34:59 -07:00

47 lines
2.3 KiB
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// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-linux-gnu %s -fclangir -emit-cir -o %t.cir
// RUN: FileCheck --input-file=%t.cir -check-prefix=CIR %s
// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-linux-gnu %s -fclangir -emit-llvm -o %t-cir.ll
// RUN: FileCheck --input-file=%t-cir.ll -check-prefix=LLVM %s
// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-linux-gnu %s -emit-llvm -o %t.ll
// RUN: FileCheck --input-file=%t.ll -check-prefix=OGCG %s
void t1() {
int *p1 = nullptr;
int *p2 = 0;
int *p3 = (int*)0;
}
// CIR: cir.func @_Z2t1v()
// CIR-NEXT: %[[P1:.*]] = cir.alloca !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>, ["p1", init] {alignment = 8 : i64}
// CIR-NEXT: %[[P2:.*]] = cir.alloca !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>, ["p2", init] {alignment = 8 : i64}
// CIR-NEXT: %[[P3:.*]] = cir.alloca !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>, ["p3", init] {alignment = 8 : i64}
// CIR-NEXT: %[[NULLPTR1:.*]] = cir.const #cir.ptr<null> : !cir.ptr<!s32i>
// CIR-NEXT: cir.store{{.*}} %[[NULLPTR1]], %[[P1]] : !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>
// CIR-NEXT: %[[NULLPTR2:.*]] = cir.const #cir.ptr<null> : !cir.ptr<!s32i>
// CIR-NEXT: cir.store{{.*}} %[[NULLPTR2]], %[[P2]] : !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>
// CIR-NEXT: %[[NULLPTR3:.*]] = cir.const #cir.ptr<null> : !cir.ptr<!s32i>
// CIR-NEXT: cir.store{{.*}} %[[NULLPTR3]], %[[P3]] : !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>
// CIR-NEXT: cir.return
// CIR-NEXT: }
// LLVM: define{{.*}} @_Z2t1v()
// LLVM-NEXT: %[[P1:.*]] = alloca ptr, i64 1, align 8
// LLVM-NEXT: %[[P2:.*]] = alloca ptr, i64 1, align 8
// LLVM-NEXT: %[[P3:.*]] = alloca ptr, i64 1, align 8
// LLVM-NEXT: store ptr null, ptr %[[P1]], align 8
// LLVM-NEXT: store ptr null, ptr %[[P2]], align 8
// LLVM-NEXT: store ptr null, ptr %[[P3]], align 8
// LLVM-NEXT: ret void
// LLVM-NEXT: }
// OGCG: define{{.*}} @_Z2t1v()
// OGCG-NEXT: entry:
// OGCG-NEXT: %[[P1:.*]] = alloca ptr, align 8
// OGCG-NEXT: %[[P2:.*]] = alloca ptr, align 8
// OGCG-NEXT: %[[P3:.*]] = alloca ptr, align 8
// OGCG-NEXT: store ptr null, ptr %[[P1]], align 8
// OGCG-NEXT: store ptr null, ptr %[[P2]], align 8
// OGCG-NEXT: store ptr null, ptr %[[P3]], align 8
// OGCG-NEXT: ret void
// OGCG-NEXT: }