X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=test%2FOther%2Flint.ll;h=ca2b1a336a18d82ddc3243d3fa2eec4406749f52;hb=4b523b43713078f2b92a3df5df7dab534beea420;hp=4cf9fd7fce63eee9c4824c9e98c78d9238bf0a58;hpb=34220aedc4242ab6a1356ca664a0f65c48d093f5;p=oota-llvm.git diff --git a/test/Other/lint.ll b/test/Other/lint.ll index 4cf9fd7fce6..ca2b1a336a1 100644 --- a/test/Other/lint.ll +++ b/test/Other/lint.ll @@ -1,8 +1,12 @@ -; RUN: opt -lint -disable-output < %s |& FileCheck %s +; RUN: opt -basicaa -lint -disable-output < %s |& FileCheck %s target datalayout = "e-p:64:64:64" declare fastcc void @bar() declare void @llvm.stackrestore(i8*) +declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind +declare void @has_sret(i8* sret %p) +declare void @has_noaliases(i32* noalias %p, i32* %q) +declare void @one_arg(i32) @CG = constant i32 7 @@ -17,6 +21,10 @@ define i32 @foo() noreturn { store i32 0, i32* undef ; CHECK: Undef pointer dereference %u = load i32* undef +; CHECK: All-ones pointer dereference + store i32 0, i32* inttoptr (i64 -1 to i32*) +; CHECK: Address one pointer dereference + store i32 0, i32* inttoptr (i64 1 to i32*) ; CHECK: Memory reference address is misaligned %x = inttoptr i32 1 to i32* load i32* %x, align 4 @@ -53,6 +61,19 @@ define i32 @foo() noreturn { call void()* bitcast (i8* blockaddress(@foo, %next) to void()*)() ; CHECK: Undefined behavior: Null pointer dereference call void @llvm.stackrestore(i8* null) +; CHECK: Undefined behavior: Null pointer dereference + call void @has_sret(i8* null) +; CHECK: Unusual: noalias argument aliases another argument + call void @has_noaliases(i32* @CG, i32* @CG) +; CHECK: Call argument count mismatches callee argument count + call void (i32, i32)* bitcast (void (i32)* @one_arg to void (i32, i32)*)(i32 0, i32 0) +; CHECK: Call argument count mismatches callee argument count + call void ()* bitcast (void (i32)* @one_arg to void ()*)() +; CHECK: Call argument type mismatches callee parameter type + call void (float)* bitcast (void (i32)* @one_arg to void (float)*)(float 0.0) + +; CHECK: Write to read-only memory + call void @llvm.memcpy.p0i8.p0i8.i64(i8* bitcast (i32* @CG to i8*), i8* bitcast (i32* @CG to i8*), i64 1, i32 1, i1 0) br label %next @@ -122,3 +143,25 @@ exit: %t7 = inttoptr i64 %t6 to i32* ret i32* %t7 } + +; CHECK: Undefined behavior: Undef pointer dereference +define i32* @self_reference() { +entry: + unreachable +exit: + %t3 = phi i32* [ %t4, %exit ] + %t4 = bitcast i32* %t3 to i32* + %x = load volatile i32* %t3 + br label %exit +} + +; CHECK: Call return type mismatches callee return type +%struct = type { double, double } +declare i32 @nonstruct_callee() nounwind +define void @struct_caller() nounwind { +entry: + call %struct bitcast (i32 ()* @foo to %struct ()*)() + + ; CHECK: Undefined behavior: indirectbr with no destinations + indirectbr i8* null, [] +}