diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/ipa')
-rw-r--r-- | gcc/testsuite/g++.dg/ipa/pr88235.C | 55 | ||||
-rw-r--r-- | gcc/testsuite/g++.dg/ipa/pr89693.C | 52 |
2 files changed, 107 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/ipa/pr88235.C b/gcc/testsuite/g++.dg/ipa/pr88235.C new file mode 100644 index 00000000000..29f3252b828 --- /dev/null +++ b/gcc/testsuite/g++.dg/ipa/pr88235.C @@ -0,0 +1,55 @@ +// { dg-do compile } +// { dg-options "-O1 -fdevirtualize -finline-small-functions -fipa-cp -fipa-cp-clone --param ipa-cp-eval-threshold=125 --param max-inline-insns-single=4" } + +extern "C" int printf (const char *, ...); +enum E { vf_request, vf_event } want; + +int errs = 0; + +class ivResource { +public: + virtual ~ivResource () { } +}; + +class ivHandler : public ivResource { +public: + virtual void event() { } +}; + +class ivGlyph : public ivResource { +public: + virtual ~ivGlyph () { } + virtual void request () { + if (want!=vf_request) + ++errs; + } +}; + +class ItemView : public ivGlyph, public ivHandler { +public: + virtual void event () { + if (want!=vf_event) + ++errs; + } +} a; + +ivGlyph *bar() { + return &a; +} + +ivHandler *bar2() { + return &a; +} + +int main() { + want=vf_request; + bar()->request(); + want=vf_event; + bar2()->event(); + if (errs) { + printf("FAIL\n"); + return 1; + } + printf("PASS\n"); + return 0; +} diff --git a/gcc/testsuite/g++.dg/ipa/pr89693.C b/gcc/testsuite/g++.dg/ipa/pr89693.C new file mode 100644 index 00000000000..4ac83eeeb3a --- /dev/null +++ b/gcc/testsuite/g++.dg/ipa/pr89693.C @@ -0,0 +1,52 @@ +// Copyright (C) 2005 Free Software Foundation, Inc. +// Contributed by Nathan Sidwell 4 Apr 2005 <nathan@codesourcery.com> +// Re-purposed to check for re-rurgesnce of PR 89693 in 2019. + +// { dg-do compile } +// { dg-options "-O3 -fno-ipa-icf-functions" } + +// Origin: yanliu@ca.ibm.com +// nathan@codesourcery.com + +struct A { + virtual void One (); +}; +struct B { + virtual B *Two (); + virtual B &Three (); +}; + +struct C : A, B +{ + virtual C *Two (); + virtual C &Three (); +}; +void A::One () {} +B *B::Two() {return this;} +B &B::Three() {return *this;} +C *C::Two () {return 0;} +C &C::Three () {return *(C *)0;} + +B *Foo (B *b) +{ + return b->Two (); +} + +B &Bar (B *b) +{ + return b->Three (); +} + +int main () +{ + C c; + + /* We should not adjust a null pointer. */ + if (Foo (&c)) + return 1; + /* But we should adjust a (bogus) null reference. */ + if (!&Bar (&c)) + return 2; + + return 0; +} |