https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98123
Bug ID: 98123
Summary: if-to-switch tests fail on arm
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: clyon at gcc dot gnu.org
Target Milestone: ---
The recently introduced if-to-switch-* tests fail on arm:
gcc.dg/tree-ssa/if-to-switch-2.c scan-tree-dump iftoswitch "Condition chain
with 3 BBs transformed into a switch statement."
gcc.dg/tree-ssa/if-to-switch-3.c scan-tree-dump iftoswitch "Condition chain
with 3 BBs transformed into a switch statement."
gcc.dg/tree-ssa/if-to-switch-4.c scan-tree-dump-not iftoswitch "Condition
chain"
gcc.dg/tree-ssa/if-to-switch-5.c scan-tree-dump iftoswitch "Condition chain
with 5 BBs transformed into a switch statement."
gcc.dg/tree-ssa/if-to-switch-6.c scan-tree-dump-not iftoswitch "Condition
chain"
gcc.dg/tree-ssa/if-to-switch-8.c scan-tree-dump-not iftoswitch "Condition
chain"
When GCC is configured with:
--target arm-none-linux-gnueabihf
--with-mode thumb
--with-cpu cortex-a5
--with-fpu vfpv3-d16-fp16
Configuring for cortex-a9 instead of cortex-a5 shows less failures, only:
gcc.dg/tree-ssa/if-to-switch-4.c scan-tree-dump-not iftoswitch "Condition
chain"
gcc.dg/tree-ssa/if-to-switch-6.c scan-tree-dump-not iftoswitch "Condition
chain"
gcc.dg/tree-ssa/if-to-switch-8.c scan-tree-dump-not iftoswitch "Condition
chain"
