https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81184
Bug ID: 81184 Summary: [8 regression] gcc.dg/pr21643.c and gcc.dg/tree-ssa/phi-opt-11.c fail starting with r249450 Product: gcc Version: 8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: seurer at gcc dot gnu.org Target Milestone: --- These fail on powerpc64 both LE and BE. gcc.dg/tree-ssa/ipa-split-5.c also started failing with this revision but since has been fixed. The test cases may just need to be adjusted for the differences introduced by this revision. spawn /home/seurer/gcc/build/gcc-trunk/gcc/xgcc -B/home/seurer/gcc/build/gcc-trunk/gcc/ /home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr21643.c -fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -fdump-tree-reassoc1-details -S -o pr21643.s PASS: gcc.dg/pr21643.c (test for excess errors) FAIL: gcc.dg/pr21643.c scan-tree-dump-times reassoc1 "Optimizing range tests c_[0-9]*.D. -.0, 31. and -.32, 32.[\n\r]* into" 6 spawn /home/seurer/gcc/build/gcc-trunk/gcc/xgcc -B/home/seurer/gcc/build/gcc-trunk/gcc/ /home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-11.c -fno-diagnostics-show-caret -fdiagnostics-color=never -O1 -fdump-tree-optimized -S -o phi-opt-11.s PASS: gcc.dg/tree-ssa/phi-opt-11.c (test for excess errors) FAIL: gcc.dg/tree-ssa/phi-opt-11.c scan-tree-dump-times optimized "if" 0 Note: I tried this revision on an X86 machine and it worked OK there.