Index: llvm/trunk/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp =================================================================== --- llvm/trunk/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp +++ llvm/trunk/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp @@ -1055,14 +1055,6 @@ DT->dominates(cast(base)->getParent(), cast(ptr)->getParent())) && "The base we found better dominate the derived pointer"); - - // If you see this trip and like to live really dangerously, the code should - // be correct, just with idioms the verifier can't handle. You can try - // disabling the verifier at your own substantial risk. - assert(!isa(base) && - "the relocation code needs adjustment to handle the relocation of " - "a null pointer constant without causing false positives in the " - "safepoint ir verifier."); } } Index: llvm/trunk/test/Transforms/RewriteStatepointsForGC/constants.ll =================================================================== --- llvm/trunk/test/Transforms/RewriteStatepointsForGC/constants.ll +++ llvm/trunk/test/Transforms/RewriteStatepointsForGC/constants.ll @@ -95,3 +95,25 @@ %res = extractelement <2 x i8 addrspace(1)*> , i32 0 ret i8 addrspace(1)* %res } + +define i8 addrspace(1)* @test6(i64 %arg) gc "statepoint-example" { +entry: + ; Don't fail any assertions and don't record null as a live value + ; CHECK-LABEL: test6 + ; CHECK: gc.statepoint + ; CHECK-NOT: call {{.*}}gc.relocate + %load_addr = getelementptr i8, i8 addrspace(1)* null, i64 %arg + call void @foo() [ "deopt"() ] + ret i8 addrspace(1)* %load_addr +} + +define i8 addrspace(1)* @test7(i64 %arg) gc "statepoint-example" { +entry: + ; Same as test7 but use regular constant instead of a null + ; CHECK-LABEL: test7 + ; CHECK: gc.statepoint + ; CHECK-NOT: call {{.*}}gc.relocate + %load_addr = getelementptr i8, i8 addrspace(1)* inttoptr (i64 15 to i8 addrspace(1)*), i64 %arg + call void @foo() [ "deopt"() ] + ret i8 addrspace(1)* %load_addr +}