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-rw-r--r--include/tcg/tcg-gvec-desc.h36
-rw-r--r--include/tcg/tcg.h22
2 files changed, 32 insertions, 26 deletions
diff --git a/include/tcg/tcg-gvec-desc.h b/include/tcg/tcg-gvec-desc.h
index 0224ac3e78..704bd86454 100644
--- a/include/tcg/tcg-gvec-desc.h
+++ b/include/tcg/tcg-gvec-desc.h
@@ -20,29 +20,41 @@
#ifndef TCG_TCG_GVEC_DESC_H
#define TCG_TCG_GVEC_DESC_H
-/* ??? These bit widths are set for ARM SVE, maxing out at 256 byte vectors. */
-#define SIMD_OPRSZ_SHIFT 0
-#define SIMD_OPRSZ_BITS 5
+/*
+ * This configuration allows MAXSZ to represent 2048 bytes, and
+ * OPRSZ to match MAXSZ, or represent the smaller values 8, 16, or 32.
+ *
+ * Encode this with:
+ * 0, 1, 3 -> 8, 16, 32
+ * 2 -> maxsz
+ *
+ * This steals the input that would otherwise map to 24 to match maxsz.
+ */
+#define SIMD_MAXSZ_SHIFT 0
+#define SIMD_MAXSZ_BITS 8
-#define SIMD_MAXSZ_SHIFT (SIMD_OPRSZ_SHIFT + SIMD_OPRSZ_BITS)
-#define SIMD_MAXSZ_BITS 5
+#define SIMD_OPRSZ_SHIFT (SIMD_MAXSZ_SHIFT + SIMD_MAXSZ_BITS)
+#define SIMD_OPRSZ_BITS 2
-#define SIMD_DATA_SHIFT (SIMD_MAXSZ_SHIFT + SIMD_MAXSZ_BITS)
+#define SIMD_DATA_SHIFT (SIMD_OPRSZ_SHIFT + SIMD_OPRSZ_BITS)
#define SIMD_DATA_BITS (32 - SIMD_DATA_SHIFT)
/* Create a descriptor from components. */
uint32_t simd_desc(uint32_t oprsz, uint32_t maxsz, int32_t data);
-/* Extract the operation size from a descriptor. */
-static inline intptr_t simd_oprsz(uint32_t desc)
+/* Extract the max vector size from a descriptor. */
+static inline intptr_t simd_maxsz(uint32_t desc)
{
- return (extract32(desc, SIMD_OPRSZ_SHIFT, SIMD_OPRSZ_BITS) + 1) * 8;
+ return extract32(desc, SIMD_MAXSZ_SHIFT, SIMD_MAXSZ_BITS) * 8 + 8;
}
-/* Extract the max vector size from a descriptor. */
-static inline intptr_t simd_maxsz(uint32_t desc)
+/* Extract the operation size from a descriptor. */
+static inline intptr_t simd_oprsz(uint32_t desc)
{
- return (extract32(desc, SIMD_MAXSZ_SHIFT, SIMD_MAXSZ_BITS) + 1) * 8;
+ uint32_t f = extract32(desc, SIMD_OPRSZ_SHIFT, SIMD_OPRSZ_BITS);
+ intptr_t o = f * 8 + 8;
+ intptr_t m = simd_maxsz(desc);
+ return f == 2 ? m : o;
}
/* Extract the operation-specific data from a descriptor. */
diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h
index 53ce94c2c5..8804a8c4a2 100644
--- a/include/tcg/tcg.h
+++ b/include/tcg/tcg.h
@@ -976,18 +976,16 @@ int64_t tcg_cpu_exec_time(void);
void tcg_dump_info(void);
void tcg_dump_op_count(void);
-#define TCG_CT_ALIAS 0x80
-#define TCG_CT_IALIAS 0x40
-#define TCG_CT_NEWREG 0x20 /* output requires a new register */
-#define TCG_CT_REG 0x01
-#define TCG_CT_CONST 0x02 /* any constant of register size */
+#define TCG_CT_CONST 1 /* any constant of register size */
typedef struct TCGArgConstraint {
- uint16_t ct;
- uint8_t alias_index;
- union {
- TCGRegSet regs;
- } u;
+ unsigned ct : 16;
+ unsigned alias_index : 4;
+ unsigned sort_index : 4;
+ bool oalias : 1;
+ bool ialias : 1;
+ bool newreg : 1;
+ TCGRegSet regs;
} TCGArgConstraint;
#define TCG_MAX_OP_ARGS 16
@@ -1017,10 +1015,6 @@ typedef struct TCGOpDef {
uint8_t nb_oargs, nb_iargs, nb_cargs, nb_args;
uint8_t flags;
TCGArgConstraint *args_ct;
- int *sorted_args;
-#if defined(CONFIG_DEBUG_TCG)
- int used;
-#endif
} TCGOpDef;
extern TCGOpDef tcg_op_defs[];