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from af47f22fd57 Fix checking disabled build. new 5aa91072e24 Implement DSE of dead functions calls storing memory.

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Summary of changes: gcc/ipa-modref.c | 60 +++++++++++++-- gcc/ipa-modref.h | 3 +- gcc/testsuite/g++.dg/cpp1z/inh-ctor23.C | 2 +- gcc/testsuite/g++.dg/ipa/ipa-icf-4.C | 2 +- gcc/testsuite/gcc.dg/tree-ssa/modref-dse-1.c | 28 +++++++ gcc/testsuite/gcc.dg/tree-ssa/modref-dse-2.c | 31 ++++++++ gcc/tree-ssa-alias.c | 2 +- gcc/tree-ssa-alias.h | 3 + gcc/tree-ssa-dse.c | 108 ++++++++++++++++++++++++++- 9 files changed, 227 insertions(+), 12 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/modref-dse-1.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/modref-dse-2.c