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[PATCH 13/31] tcg: Introduce tcg_type_size
From: |
Richard Henderson |
Subject: |
[PATCH 13/31] tcg: Introduce tcg_type_size |
Date: |
Thu, 20 Oct 2022 21:52:24 +1000 |
Add a helper function for computing the size of a type.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
include/tcg/tcg.h | 10 ++++++++++
tcg/tcg.c | 26 ++++++++++++--------------
2 files changed, 22 insertions(+), 14 deletions(-)
diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h
index a631e0bc80..08f997cbbc 100644
--- a/include/tcg/tcg.h
+++ b/include/tcg/tcg.h
@@ -319,6 +319,16 @@ typedef enum TCGType {
/* Number of different types */
#define TCG_TYPE_COUNT (TCG_TYPE_V256 + 1)
+static inline int tcg_type_size(TCGType t)
+{
+ unsigned i = t;
+ if (i >= TCG_TYPE_V64) {
+ tcg_debug_assert(i < TCG_TYPE_COUNT);
+ i -= TCG_TYPE_V64 - 1;
+ }
+ return 4 << i;
+}
+
/**
* get_alignment_bits
* @memop: MemOp value
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 71afa4b749..c1b9010b55 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -3110,22 +3110,22 @@ static void check_regs(TCGContext *s)
static void temp_allocate_frame(TCGContext *s, TCGTemp *ts)
{
- intptr_t off, size, align;
+ int size = tcg_type_size(ts->type);
+ int align;
+ intptr_t off;
switch (ts->type) {
case TCG_TYPE_I32:
- size = align = 4;
+ align = 4;
break;
case TCG_TYPE_I64:
case TCG_TYPE_V64:
- size = align = 8;
+ align = 8;
break;
case TCG_TYPE_V128:
- size = align = 16;
- break;
case TCG_TYPE_V256:
/* Note that we do not require aligned storage for V256. */
- size = 32, align = 16;
+ align = 16;
break;
default:
g_assert_not_reached();
@@ -3641,8 +3641,8 @@ static void tcg_reg_alloc_dup(TCGContext *s, const TCGOp
*op)
TCGRegSet dup_out_regs, dup_in_regs;
TCGTemp *its, *ots;
TCGType itype, vtype;
- intptr_t endian_fixup;
unsigned vece;
+ int lowpart_ofs;
bool ok;
ots = arg_temp(op->args[0]);
@@ -3711,14 +3711,12 @@ static void tcg_reg_alloc_dup(TCGContext *s, const
TCGOp *op)
/* fall through */
case TEMP_VAL_MEM:
-#if HOST_BIG_ENDIAN
- endian_fixup = itype == TCG_TYPE_I32 ? 4 : 8;
- endian_fixup -= 1 << vece;
-#else
- endian_fixup = 0;
-#endif
+ lowpart_ofs = 0;
+ if (HOST_BIG_ENDIAN) {
+ lowpart_ofs = tcg_type_size(itype) - (1 << vece);
+ }
if (tcg_out_dupm_vec(s, vtype, vece, ots->reg, its->mem_base->reg,
- its->mem_offset + endian_fixup)) {
+ its->mem_offset + lowpart_ofs)) {
goto done;
}
tcg_out_ld(s, itype, ots->reg, its->mem_base->reg, its->mem_offset);
--
2.34.1
- [PATCH 17/31] tcg: Use TCG_CALL_ARG_EVEN for TCI special case, (continued)
- [PATCH 17/31] tcg: Use TCG_CALL_ARG_EVEN for TCI special case, Richard Henderson, 2022/10/20
- [PATCH 22/31] tcg: Add TCG_CALL_{RET,ARG}_NORMAL_4, Richard Henderson, 2022/10/20
- [PATCH 30/31] tcg: Add temp allocation for TCGv_i128, Richard Henderson, 2022/10/20
- [PATCH 03/31] tcg/s390x: Use register pair allocation for div and mulu2, Richard Henderson, 2022/10/20
- [PATCH 08/31] target/sparc: Avoid TCGV_{LOW,HIGH}, Richard Henderson, 2022/10/20
- [PATCH 28/31] include/qemu/int128: Use Int128 structure for TCI, Richard Henderson, 2022/10/20
- [PATCH 06/31] tcg: Remove TCG_TARGET_STACK_GROWSUP, Richard Henderson, 2022/10/20
- [PATCH 05/31] meson: Move CONFIG_TCG_INTERPRETER to config_host, Richard Henderson, 2022/10/20
- [PATCH 13/31] tcg: Introduce tcg_type_size,
Richard Henderson <=
- [PATCH 26/31] tcg: Introduce tcg_target_call_oarg_reg, Richard Henderson, 2022/10/20
- [PATCH 29/31] tcg: Add TCG_TARGET_CALL_{RET,ARG}_I128, Richard Henderson, 2022/10/20