diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2020-08-24 09:58:14 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2020-09-01 07:43:35 -0700 |
| commit | b9c58aabe62381fe736b6b4f9132986b90aa11cb (patch) | |
| tree | ffca97eaee194c40799d4084f90c4a2e19ef59ff /target/microblaze/cpu.h | |
| parent | ee8c7f9f9ab0c06b26e22d869cc12893e0c73bce (diff) | |
target/microblaze: Reorganize branching
Remove the btaken variable, and simplify things by always computing
the full branch destination into btarget. This avoids all need for
sync_jmpstate().
Retain the direct branch behaviour by remembering the jump destination
in jmp_dest, discarding btarget. In the normal case, where the branch
delay slot cannot trap (e.g. arithmetic), tcg will remove the computation
into btarget, leaving us with just the tcg direct branching at the end.
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/microblaze/cpu.h')
| -rw-r--r-- | target/microblaze/cpu.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/target/microblaze/cpu.h b/target/microblaze/cpu.h index 1528749a0b..4298f242a6 100644 --- a/target/microblaze/cpu.h +++ b/target/microblaze/cpu.h @@ -234,8 +234,8 @@ typedef struct CPUMBState CPUMBState; #define TARGET_INSN_START_EXTRA_WORDS 1 struct CPUMBState { - uint32_t btaken; - uint32_t btarget; + uint32_t bvalue; /* TCG temporary, only valid during a TB */ + uint32_t btarget; /* Full resolved branch destination */ uint32_t imm; uint32_t regs[32]; |