OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

tcg/ppc: Use ADDPCIS in tcg_out_goto_tb

Browse Source 
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-08-15 17:47:47 +00:00
parent 7a379976d6
commit 4a388c7932
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
tcg/ppc/tcg-target.c.inc
View File

@ -2593,6 +2593,7 @@ static void tcg_out_exit_tb(TCGContext *s, uintptr_t arg)
static void tcg_out_goto_tb(TCGContext *s, int which)
{
uintptr_t ptr = get_jmp_target_addr(s, which);
int16_t lo;
/* Direct branch will be patched by tb_target_set_jmp_target. */
set_jmp_insn_offset(s, which);
@ -2602,9 +2603,15 @@ static void tcg_out_goto_tb(TCGContext *s, int which)
if (USE_REG_TB) {
ptrdiff_t offset = ppc_tbrel_diff(s, (void *)ptr);
tcg_out_mem_long(s, LD, LDX, TCG_REG_TMP1, TCG_REG_TB, offset);
} else if (have_isa_3_00) {
ptrdiff_t offset = tcg_pcrel_diff(s, (void *)ptr) - 4;
lo = offset;
tcg_out_addpcis(s, TCG_REG_TMP1, offset - lo);
tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_REG_TMP1, lo);
} else {
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP1, ptr - (int16_t)ptr);
tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_REG_TMP1, (int16_t)ptr);
lo = ptr;
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP1, ptr - lo);
tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_REG_TMP1, lo);
}
tcg_out32(s, MTSPR | RS(TCG_REG_TMP1) | CTR);