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 noalias i8* @malloc(i32) nounwind 5 declare noalias i8* @_Znwm(i64) ; new(unsigned long) 6 declare i32 @__gxx_personality_v0(...) 7 declare void @__cxa_call_unexpected(i8*) 8 declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readonly 9 10 ; CHECK-LABEL: @f1( 11 define i64 @f1(i8 **%esc) { 12 %call = call i8* @malloc(i32 4) 13 store i8* %call, i8** %esc 14 %size = call i64 @llvm.objectsize.i64(i8* %call, i1 false) 15 ; CHECK: ret i64 4 16 ret i64 %size 17 } 18 19 20 ; CHECK-LABEL: @f2( 21 define i64 @f2(i8** %esc) nounwind uwtable ssp { 22 entry: 23 ; CHECK: invoke noalias i8* @_Znwm(i64 13) 24 %call = invoke noalias i8* @_Znwm(i64 13) 25 to label %invoke.cont unwind label %lpad 26 27 invoke.cont: 28 ; CHECK: ret i64 13 29 store i8* %call, i8** %esc 30 %0 = tail call i64 @llvm.objectsize.i64(i8* %call, i1 false) 31 ret i64 %0 32 33 lpad: 34 %1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 35 filter [0 x i8*] zeroinitializer 36 %2 = extractvalue { i8*, i32 } %1, 0 37 tail call void @__cxa_call_unexpected(i8* %2) noreturn nounwind 38 unreachable 39 } 40
