| ; RUN: opt < %s -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 noalias i8* @malloc(i32) nounwind |
| declare noalias i8* @_Znwm(i64) ; new(unsigned long) |
| declare i32 @__gxx_personality_v0(...) |
| declare void @__cxa_call_unexpected(i8*) |
| declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readonly |
| |
| ; CHECK: @f1 |
| define i64 @f1(i8 **%esc) { |
| %call = call i8* @malloc(i32 4) |
| store i8* %call, i8** %esc |
| %size = call i64 @llvm.objectsize.i64(i8* %call, i1 false) |
| ; CHECK: ret i64 4 |
| ret i64 %size |
| } |
| |
| |
| ; CHECK: @f2 |
| define i64 @f2(i8** %esc) nounwind uwtable ssp { |
| entry: |
| ; CHECK: invoke noalias i8* @_Znwm(i64 13) |
| %call = invoke noalias i8* @_Znwm(i64 13) |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: |
| ; CHECK: ret i64 13 |
| store i8* %call, i8** %esc |
| %0 = tail call i64 @llvm.objectsize.i64(i8* %call, i1 false) |
| ret i64 %0 |
| |
| lpad: |
| %1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) |
| filter [0 x i8*] zeroinitializer |
| %2 = extractvalue { i8*, i32 } %1, 0 |
| tail call void @__cxa_call_unexpected(i8* %2) noreturn nounwind |
| unreachable |
| } |
