| ;RUN: dsaopt %s -dsa-local -analyze -verify-flags "main:obj1+UP2" |
| ;RUN: dsaopt %s -dsa-local -analyze -verify-flags "main:obj+UP2" |
| ;RUN: dsaopt %s -dsa-local -analyze -check-type=main:obj,0:i32*::4:i32 |
| ;RUN: dsaopt %s -dsa-local -analyze -check-type=main:obj1,0:i32\|i32* |
| |
| ; if any part of pointer overlaps with an interger, we must mark the into to ptr flag. |
| |
| |
| ; ModuleID = 'union_P21.o' |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| %struct.StructType = type { i32, i32 } |
| %union.UnionType = type { i32* } |
| |
| define i32 @main() nounwind { |
| entry: |
| %retval = alloca i32 ; <i32*> [#uses=1] |
| %obj = alloca %union.UnionType ; <%union.UnionType*> [#uses=2] |
| %d = alloca i32 ; <i32*> [#uses=1] |
| %obj1 = alloca %union.UnionType ; <%union.UnionType*> [#uses=2] |
| %e = alloca i32 ; <i32*> [#uses=1] |
| %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] |
| %0 = call noalias i8* @malloc(i64 4) nounwind ; <i8*> [#uses=1] |
| %1 = bitcast i8* %0 to i32* ; <i32*> [#uses=1] |
| %2 = getelementptr inbounds %union.UnionType, %union.UnionType* %obj, i32 0, i32 0 ; <i32**> [#uses=1] |
| store i32* %1, i32** %2, align 8 |
| %3 = getelementptr inbounds %union.UnionType, %union.UnionType* %obj, i32 0, i32 0 ; <i32**> [#uses=1] |
| %4 = bitcast i32** %3 to %struct.StructType* ; <%struct.StructType*> [#uses=1] |
| %5 = getelementptr inbounds %struct.StructType, %struct.StructType* %4, i32 0, i32 1 ; <i32*> [#uses=1] |
| %6 = load i32, i32* %5, align 4 ; <i32> [#uses=1] |
| store i32 %6, i32* %d, align 4 |
| %7 = call noalias i8* @malloc(i64 4) nounwind ; <i8*> [#uses=1] |
| %8 = bitcast i8* %7 to i32* ; <i32*> [#uses=1] |
| %9 = getelementptr inbounds %union.UnionType, %union.UnionType* %obj1, i32 0, i32 0 ; <i32**> [#uses=1] |
| store i32* %8, i32** %9, align 8 |
| %10 = getelementptr inbounds %union.UnionType, %union.UnionType* %obj1, i32 0, i32 0 ; <i32**> [#uses=1] |
| %11 = bitcast i32** %10 to %struct.StructType* ; <%struct.StructType*> [#uses=1] |
| %12 = getelementptr inbounds %struct.StructType, %struct.StructType* %11, i32 0, i32 0 ; <i32*> [#uses=1] |
| %13 = load i32, i32* %12, align 8 ; <i32> [#uses=1] |
| store i32 %13, i32* %e, align 4 |
| br label %return |
| |
| return: ; preds = %entry |
| %retval1 = load i32, i32* %retval ; <i32> [#uses=1] |
| ret i32 %retval1 |
| } |
| |
| declare noalias i8* @malloc(i64) nounwind |