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| author | Richard Henderson <richard.henderson@linaro.org> | 2022-12-07 15:44:33 +0000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-01-06 23:07:03 +0000 |
| commit | 0a3afe09cbb0c9634ea6ae2494abbd08f01285bd (patch) | |
| tree | 80e8a105124ba7ddaff9b758e8be01234a52e84e | |
| parent | 6bd739ed37efb67001903cf7470b3d44c8d00683 (diff) | |
| download | qemu-0a3afe09cbb0c9634ea6ae2494abbd08f01285bd.zip qemu-0a3afe09cbb0c9634ea6ae2494abbd08f01285bd.tar.gz qemu-0a3afe09cbb0c9634ea6ae2494abbd08f01285bd.tar.bz2 | |
tcg/s390x: Remove USE_LONG_BRANCHES
The size of a compiled TB is limited by the uint16_t used by
gen_insn_end_off[] -- there is no need for a 32-bit branch.
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| -rw-r--r-- | tcg/s390x/tcg-target.c.inc | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc index 2cdd0d7..dea889f 100644 --- a/tcg/s390x/tcg-target.c.inc +++ b/tcg/s390x/tcg-target.c.inc @@ -33,11 +33,6 @@ #include "../tcg-pool.c.inc" #include "elf.h" -/* ??? The translation blocks produced by TCG are generally small enough to - be entirely reachable with a 16-bit displacement. Leaving the option for - a 32-bit displacement here Just In Case. */ -#define USE_LONG_BRANCHES 0 - #define TCG_CT_CONST_S16 0x100 #define TCG_CT_CONST_S32 0x200 #define TCG_CT_CONST_S33 0x400 @@ -1525,10 +1520,6 @@ static void tgen_branch(TCGContext *s, int cc, TCGLabel *l) { if (l->has_value) { tgen_gotoi(s, cc, l->u.value_ptr); - } else if (USE_LONG_BRANCHES) { - tcg_out16(s, RIL_BRCL | (cc << 4)); - tcg_out_reloc(s, s->code_ptr, R_390_PC32DBL, l, 2); - s->code_ptr += 2; } else { tcg_out16(s, RI_BRC | (cc << 4)); tcg_out_reloc(s, s->code_ptr, R_390_PC16DBL, l, 2); |