48c79f054b
This PR is a regression caused by r8-5967, where we replaced
a call to aarch64_internal_mov_immediate in aarch64_add_offset
with a call to aarch64_force_temporary, which in turn uses the
normal emit_move_insn{,_1} routines.
The problem is that aarch64_add_offset can be called while
outputting a thunk, where we require all instructions to be
valid without splitting. However, the move expanders were
not splitting CONST_INT moves themselves.
I think the right fix is to make the move expanders work
even in this scenario, rather than require callers to handle
it as a special case.
gcc/
PR target/98136
* config/aarch64/aarch64.md (mov<mode>): Pass multi-instruction
CONST_INTs to aarch64_expand_mov_immediate when called after RA.
gcc/testsuite/
PR target/98136
* g++.dg/pr98136.C: New test.
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