xref: /llvm-project/llvm/test/Transforms/Attributor/ArgumentPromotion/array.ll (revision 23dafbb1e5deb76f1ee6a1325e517bb45be1fb04)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
2; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-annotate-decl-cs  -S < %s | FileCheck %s --check-prefixes=CHECK,TUNIT
3; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
4;
5; FIXME: The GEP + BC + GEP solution we create is not great but correct.
6
7declare void @use(ptr nocapture readonly %arg)
8
9define void @caller() {
10; TUNIT-LABEL: define {{[^@]+}}@caller() {
11; TUNIT-NEXT:  entry:
12; TUNIT-NEXT:    [[LEFT:%.*]] = alloca [3 x i32], align 4
13; TUNIT-NEXT:    [[TMP0:%.*]] = load i32, ptr [[LEFT]], align 4
14; TUNIT-NEXT:    [[LEFT_0_1:%.*]] = getelementptr [3 x i32], ptr [[LEFT]], i64 0, i64 1
15; TUNIT-NEXT:    [[TMP1:%.*]] = load i32, ptr [[LEFT_0_1]], align 4
16; TUNIT-NEXT:    [[LEFT_0_2:%.*]] = getelementptr [3 x i32], ptr [[LEFT]], i64 0, i64 2
17; TUNIT-NEXT:    [[TMP2:%.*]] = load i32, ptr [[LEFT_0_2]], align 4
18; TUNIT-NEXT:    call void @callee(i32 [[TMP0]], i32 [[TMP1]], i32 [[TMP2]])
19; TUNIT-NEXT:    ret void
20;
21; CGSCC-LABEL: define {{[^@]+}}@caller() {
22; CGSCC-NEXT:  entry:
23; CGSCC-NEXT:    call void @callee(i32 undef, i32 undef, i32 undef)
24; CGSCC-NEXT:    ret void
25;
26entry:
27  %left = alloca [3 x i32], align 4
28  call void @callee(ptr %left)
29  ret void
30}
31
32define internal void @callee(ptr noalias %arg) {
33; CHECK-LABEL: define {{[^@]+}}@callee
34; CHECK-SAME: (i32 [[TMP0:%.*]], i32 [[TMP1:%.*]], i32 [[TMP2:%.*]]) {
35; CHECK-NEXT:  entry:
36; CHECK-NEXT:    [[ARG_PRIV:%.*]] = alloca [3 x i32], align 4
37; CHECK-NEXT:    store i32 [[TMP0]], ptr [[ARG_PRIV]], align 4
38; CHECK-NEXT:    [[ARG_PRIV_0_1:%.*]] = getelementptr [3 x i32], ptr [[ARG_PRIV]], i64 0, i64 1
39; CHECK-NEXT:    store i32 [[TMP1]], ptr [[ARG_PRIV_0_1]], align 4
40; CHECK-NEXT:    [[ARG_PRIV_0_2:%.*]] = getelementptr [3 x i32], ptr [[ARG_PRIV]], i64 0, i64 2
41; CHECK-NEXT:    store i32 [[TMP2]], ptr [[ARG_PRIV_0_2]], align 4
42; CHECK-NEXT:    call void @use(ptr noalias nocapture noundef nonnull readonly align 4 dereferenceable(12) [[ARG_PRIV]])
43; CHECK-NEXT:    ret void
44;
45entry:
46  call void @use(ptr %arg)
47  ret void
48}
49