1 ; RUN: opt < %s -instcombine -S | FileCheck %s 2 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" 3 4 declare i32 @__gxx_personality_v0(...) 5 declare void @__cxa_call_unexpected(i8*) 6 declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readonly 7 declare i8* @_Znwm(i64) 8 9 10 ; CHECK-LABEL: @f1( 11 define i64 @f1() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { 12 entry: 13 ; CHECK: nvoke noalias i8* undef() 14 %call = invoke noalias i8* undef() 15 to label %invoke.cont unwind label %lpad 16 17 invoke.cont: 18 ; CHECK: ret i64 0 19 %0 = tail call i64 @llvm.objectsize.i64(i8* %call, i1 false) 20 ret i64 %0 21 22 lpad: 23 %1 = landingpad { i8*, i32 } 24 filter [0 x i8*] zeroinitializer 25 %2 = extractvalue { i8*, i32 } %1, 0 26 tail call void @__cxa_call_unexpected(i8* %2) noreturn nounwind 27 unreachable 28 } 29 30 ; CHECK-LABEL: @f2( 31 define i64 @f2() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { 32 entry: 33 ; CHECK: nvoke noalias i8* null() 34 %call = invoke noalias i8* null() 35 to label %invoke.cont unwind label %lpad 36 37 invoke.cont: 38 ; CHECK: ret i64 0 39 %0 = tail call i64 @llvm.objectsize.i64(i8* %call, i1 false) 40 ret i64 %0 41 42 lpad: 43 %1 = landingpad { i8*, i32 } 44 filter [0 x i8*] zeroinitializer 45 %2 = extractvalue { i8*, i32 } %1, 0 46 tail call void @__cxa_call_unexpected(i8* %2) noreturn nounwind 47 unreachable 48 } 49 50 ; CHECK-LABEL: @f3( 51 define void @f3() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { 52 ; CHECK: invoke void @llvm.donothing() 53 %call = invoke noalias i8* @_Znwm(i64 13) 54 to label %invoke.cont unwind label %lpad 55 56 invoke.cont: 57 ret void 58 59 lpad: 60 %1 = landingpad { i8*, i32 } 61 filter [0 x i8*] zeroinitializer 62 %2 = extractvalue { i8*, i32 } %1, 0 63 tail call void @__cxa_call_unexpected(i8* %2) noreturn nounwind 64 unreachable 65 } 66
