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* [Bug tree-optimization/65907] New: [6 Regression] ICE: in set_lattice_value, at tree-ssa-ccp.c:535
@ 2015-04-27 14:45 trippels at gcc dot gnu.org
  2015-04-27 15:14 ` [Bug tree-optimization/65907] " trippels at gcc dot gnu.org
  2015-04-27 15:23 ` trippels at gcc dot gnu.org
  0 siblings, 2 replies; 3+ messages in thread
From: trippels at gcc dot gnu.org @ 2015-04-27 14:45 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65907

            Bug ID: 65907
           Summary: [6 Regression] ICE: in set_lattice_value, at
                    tree-ssa-ccp.c:535
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
  Target Milestone: ---

Building LLVM fails with gcc-6:

trippels@gcc2-power8 Support % /home/trippels/gcc_test/usr/local/bin/g++ -fPIC
-std=c++11 -O2 -fno-exceptions -fno-rtti -c YAMLParser.ii
/home/trippels/llvm/lib/Support/YAMLParser.cpp: In function
‘std::__cxx11::string llvm::yaml::escape(llvm::StringRef)’:
/home/trippels/llvm/lib/Support/YAMLParser.cpp:642:13: internal compiler error:
in set_lattice_value, at tree-ssa-ccp.c:535
 std::string yaml::escape(StringRef Input) {
             ^
0x10b6f98b set_lattice_value
        ../../gcc/gcc/tree-ssa-ccp.c:535
0x10b70bbf ccp_visit_phi_node
        ../../gcc/gcc/tree-ssa-ccp.c:1147
0x10c14337 simulate_stmt
        ../../gcc/gcc/tree-ssa-propagate.c:344
0x10c16507 simulate_block
        ../../gcc/gcc/tree-ssa-propagate.c:485
0x10c16507 ssa_propagate(ssa_prop_result (*)(gimple_statement_base*,
edge_def**, tree_node**), ssa_prop_result (*)(gphi*))
        ../../gcc/gcc/tree-ssa-propagate.c:928
0x10b6db3f do_ssa_ccp
        ../../gcc/gcc/tree-ssa-ccp.c:2411
0x10b6db3f execute
        ../../gcc/gcc/tree-ssa-ccp.c:2444
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

Reducing...
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Subject: [Bug target/64579] __TM_end __builtin_tend failed to return transactional state
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idd579

--- Comment #2 from Peter Bergner <bergner at gcc dot gnu.org> ---
Author: bergner
Date: Mon Apr 27 14:52:50 2015
New Revision: 222467

URL: https://gcc.gnu.org/viewcvs?rev"2467&root=gcc&view=rev
Log:
gcc/
        PR target/64579
        * config/rs6000/htm.md: Remove all define_expands.
        (UNSPECV_HTM_TABORTDC, UNSPECV_HTM_TABORTDCI, UNSPECV_HTM_TABORTWC,
        UNSPECV_HTM_TABORTWCI): Remove.
        (UNSPECV_HTM_TABORTXC, UNSPECV_HTM_TABORTXCI, UNSPECV_HTM_TTEST): New.
        (tabort_internal, tbegin_internal, tcheck_internal, tend_internal,
        trechkpt_internal, treclaim_internal, tsr_internal): Rename from
this...
        (tabort, tbegin, tcheck, tend, trechkpt, treclaim, tsr): ...to this.
        (tabortdc_internal, tabortdci_internal, tabortwc_internal,
        tabortwci_internal): Remove define_insns.
        (tabort<wd>c, tabort<wd>ci): New define_insns.
        (tabort): Use gpc_reg_operand.
        (tcheck): Remove operand.
        (htm_mfspr_<mode>, htm_mtspr_<mode>): Use GPR mode macro.
        * config/rs6000/htmxlintrin.h (__TM_end): Use _HTM_TRANSACTIONAL as
        expected value.
        * config/rs6000/rs6000-builtin.def (BU_HTM_SPR0): Remove.
        (BU_HTM_SPR1): Rename to BU_HTM_V1.  Remove use of RS6000_BTC_SPR.
        (tabort, tabortdc, tabortdci, tabortwc, tabortwci, tbegin,
        tcheck, tend, tendall, trechkpt, treclaim, tresume, tsuspend,
        tsr, ttest): Pass in the RS6000_BTC_CR attribute.
        (get_tfhar, set_tfhar, get_tfiar, set_tfiar, get_texasr, set_texasr,
        get_texasru, set_texasru): Pass in the RS6000_BTC_SPR attribute.
        (tcheck): Remove builtin argument.
        * config/rs6000/rs6000.c (rs6000_htm_spr_icode): Use TARGET_POWERPC64
        not TARGET_64BIT.
        (htm_expand_builtin): Fix usage of expandedp.  Disallow usage of the
        tabortdc and tabortdci builtins when not in 64-bit mode.
        Modify code to handle the loss of the HTM define_expands.
        Emit code to copy the CR register to TARGET.
        (htm_init_builtins): Modify code to handle the loss of the HTM
        define_expands.
        * config/rs6000/rs6000.h (RS6000_BTC_32BIT): Delete.
        (RS6000_BTC_64BIT): Likewise.
        (RS6000_BTC_CR): New macro.
        * doc/extend.texi: Update documentation for htm builtins.

gcc/testsuite/

        PR target/64579
        * gcc.target/powerpc/htm-1.c: New test.
        * gcc.target/powerpc/htm-builtin-1.c (__builtin_tabortdc): Only test
        on 64-bit compiles.
        (__builtin_tabortdci): Likewise.
        (__builtin_tcheck): Remove operand.
        * lib/target-supports.exp (check_htm_hw_available): New function.

Added:
    trunk/gcc/testsuite/gcc.target/powerpc/htm-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/htm.md
    trunk/gcc/config/rs6000/htmxlintrin.h
    trunk/gcc/config/rs6000/rs6000-builtin.def
    trunk/gcc/config/rs6000/rs6000.c
    trunk/gcc/config/rs6000/rs6000.h
    trunk/gcc/doc/extend.texi
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.target/powerpc/htm-builtin-1.c
    trunk/gcc/testsuite/lib/target-supports.exp


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2015-04-27 14:45 [Bug tree-optimization/65907] New: [6 Regression] ICE: in set_lattice_value, at tree-ssa-ccp.c:535 trippels at gcc dot gnu.org
2015-04-27 15:14 ` [Bug tree-optimization/65907] " trippels at gcc dot gnu.org
2015-04-27 15:23 ` trippels at gcc dot gnu.org

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