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target/i386: Rearrange CCOp 

Give the first few enumerators explicit integer constants,
align the BWLQ enumerators.

This will be used to simplify ((op - CC_OP_*B) & 3).

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Link: https://lore.kernel.org/r/20240701025115.1265117-4-richard.henderson@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Richard Henderson 2024-07-15 14:31:56 +02:00 committed by Paolo Bonzini
parent e09447c39f
commit ee806f9f67
1 changed files with 8 additions and 6 deletions
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14
target/i386/cpu.h
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@ -1299,11 +1299,10 @@ uint64_t x86_cpu_get_supported_feature_word(X86CPU *cpu, FeatureWord w);
* are only needed for conditional branches.
*/
typedef enum {
CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */
CC_OP_EFLAGS, /* all cc are explicitly computed, CC_SRC = flags */
CC_OP_ADCX, /* CC_DST = C, CC_SRC = rest. */
CC_OP_ADOX, /* CC_SRC2 = O, CC_SRC = rest. */
CC_OP_ADCOX, /* CC_DST = C, CC_SRC2 = O, CC_SRC = rest. */
CC_OP_EFLAGS = 0, /* all cc are explicitly computed, CC_SRC = flags */
CC_OP_ADCX = 1, /* CC_DST = C, CC_SRC = rest. */
CC_OP_ADOX = 2, /* CC_SRC2 = O, CC_SRC = rest. */
CC_OP_ADCOX = 3, /* CC_DST = C, CC_SRC2 = O, CC_SRC = rest. */
CC_OP_MULB, /* modify all flags, C, O = (CC_SRC != 0) */
CC_OP_MULW,
@ -1376,9 +1375,12 @@ typedef enum {
CC_OP_POPCNTQ__,
CC_OP_POPCNT = sizeof(target_ulong) == 8 ? CC_OP_POPCNTQ__ : CC_OP_POPCNTL__,
CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */
CC_OP_NB,
} CCOp;
QEMU_BUILD_BUG_ON(CC_OP_NB >= 128);
/* See X86DecodedInsn.cc_op, using int8_t. */
QEMU_BUILD_BUG_ON(CC_OP_DYNAMIC > INT8_MAX);
typedef struct SegmentCache {
uint32_t selector;