| ; RUN: opt < %s -passes=instcombine -S | FileCheck %s |
| 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-S128" |
| |
| declare i32 @__gxx_personality_v0(...) |
| declare void @__cxa_call_unexpected(ptr) |
| declare i64 @llvm.objectsize.i64(ptr, i1) nounwind readonly |
| declare ptr @_Znwm(i64) |
| |
| |
| ; CHECK-LABEL: @f1( |
| define i64 @f1() nounwind uwtable ssp personality ptr @__gxx_personality_v0 { |
| entry: |
| ; CHECK: nvoke noalias ptr undef() |
| %call = invoke noalias ptr undef() |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: |
| ; CHECK: ret i64 0 |
| %0 = tail call i64 @llvm.objectsize.i64(ptr %call, i1 false) |
| ret i64 %0 |
| |
| lpad: |
| %1 = landingpad { ptr, i32 } |
| filter [0 x ptr] zeroinitializer |
| %2 = extractvalue { ptr, i32 } %1, 0 |
| tail call void @__cxa_call_unexpected(ptr %2) noreturn nounwind |
| unreachable |
| } |
| |
| ; CHECK-LABEL: @f2( |
| define i64 @f2() nounwind uwtable ssp personality ptr @__gxx_personality_v0 { |
| entry: |
| ; CHECK: nvoke noalias ptr null() |
| %call = invoke noalias ptr null() |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: |
| ; CHECK: ret i64 0 |
| %0 = tail call i64 @llvm.objectsize.i64(ptr %call, i1 false) |
| ret i64 %0 |
| |
| lpad: |
| %1 = landingpad { ptr, i32 } |
| filter [0 x ptr] zeroinitializer |
| %2 = extractvalue { ptr, i32 } %1, 0 |
| tail call void @__cxa_call_unexpected(ptr %2) noreturn nounwind |
| unreachable |
| } |
| |
| ; CHECK-LABEL: @f2_no_null_opt( |
| define i64 @f2_no_null_opt() nounwind uwtable ssp #0 personality ptr @__gxx_personality_v0 { |
| entry: |
| ; CHECK: invoke noalias ptr null() |
| %call = invoke noalias ptr null() |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: |
| ; CHECK: call i64 @llvm.objectsize.i64.p0(ptr %call, i1 false, i1 false, i1 false) |
| %0 = tail call i64 @llvm.objectsize.i64(ptr %call, i1 false) |
| ret i64 %0 |
| |
| lpad: |
| %1 = landingpad { ptr, i32 } |
| filter [0 x ptr] zeroinitializer |
| %2 = extractvalue { ptr, i32 } %1, 0 |
| tail call void @__cxa_call_unexpected(ptr %2) noreturn nounwind |
| unreachable |
| } |
| attributes #0 = { null_pointer_is_valid } |
| |
| ; CHECK-LABEL: @f3( |
| define void @f3() nounwind uwtable ssp personality ptr @__gxx_personality_v0 { |
| ; CHECK: invoke void @llvm.donothing() |
| %call = invoke noalias ptr @_Znwm(i64 13) |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: |
| ret void |
| |
| lpad: |
| %1 = landingpad { ptr, i32 } |
| filter [0 x ptr] zeroinitializer |
| %2 = extractvalue { ptr, i32 } %1, 0 |
| tail call void @__cxa_call_unexpected(ptr %2) noreturn nounwind |
| unreachable |
| } |