From e4e5981daf37146473b30b9219f78796d15320c5 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Thu, 9 May 2024 10:15:05 +0200 Subject: target/i386: adapt gen_shift_count for SHLD/SHRD SHLD/SHRD can have 3 register operands - s->T0, s->T1 and either 1 or CL - and therefore decode->op[2] is taken by the low part of the register being shifted. Pass X86_OP_* to gen_shift_count from its current callers and hardcode cpu_regs[R_ECX] as the shift count. Reviewed-by: Richard Henderson Signed-off-by: Paolo Bonzini --- target/i386/tcg/emit.c.inc | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/target/i386/tcg/emit.c.inc b/target/i386/tcg/emit.c.inc index 2cfa453..0b794c8 100644 --- a/target/i386/tcg/emit.c.inc +++ b/target/i386/tcg/emit.c.inc @@ -2878,16 +2878,16 @@ static void gen_PUSHF(DisasContext *s, X86DecodedInsn *decode) } static MemOp gen_shift_count(DisasContext *s, X86DecodedInsn *decode, - bool *can_be_zero, TCGv *count) + bool *can_be_zero, TCGv *count, int unit) { MemOp ot = decode->op[0].ot; int mask = (ot <= MO_32 ? 0x1f : 0x3f); *can_be_zero = false; - switch (decode->op[2].unit) { + switch (unit) { case X86_OP_INT: *count = tcg_temp_new(); - tcg_gen_andi_tl(*count, s->T1, mask); + tcg_gen_andi_tl(*count, cpu_regs[R_ECX], mask); *can_be_zero = true; break; @@ -3072,7 +3072,7 @@ static void gen_RCL(DisasContext *s, X86DecodedInsn *decode) bool have_1bit_cin, can_be_zero; TCGv count; TCGLabel *zero_label = NULL; - MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count); + MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count, decode->op[2].unit); TCGv low, high, low_count; if (!count) { @@ -3124,7 +3124,7 @@ static void gen_RCR(DisasContext *s, X86DecodedInsn *decode) bool have_1bit_cin, can_be_zero; TCGv count; TCGLabel *zero_label = NULL; - MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count); + MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count, decode->op[2].unit); TCGv low, high, high_count; if (!count) { @@ -3302,7 +3302,7 @@ static void gen_ROL(DisasContext *s, X86DecodedInsn *decode) { bool can_be_zero; TCGv count; - MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count); + MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count, decode->op[2].unit); TCGv_i32 temp32, count32; TCGv old = tcg_temp_new(); @@ -3330,7 +3330,7 @@ static void gen_ROR(DisasContext *s, X86DecodedInsn *decode) { bool can_be_zero; TCGv count; - MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count); + MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count, decode->op[2].unit); TCGv_i32 temp32, count32; TCGv old = tcg_temp_new(); @@ -3442,7 +3442,7 @@ static void gen_SAR(DisasContext *s, X86DecodedInsn *decode) { bool can_be_zero; TCGv count; - MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count); + MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count, decode->op[2].unit); if (!count) { return; @@ -3570,7 +3570,7 @@ static void gen_SHL(DisasContext *s, X86DecodedInsn *decode) { bool can_be_zero; TCGv count; - MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count); + MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count, decode->op[2].unit); if (!count) { return; @@ -3602,7 +3602,7 @@ static void gen_SHR(DisasContext *s, X86DecodedInsn *decode) { bool can_be_zero; TCGv count; - MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count); + MemOp ot = gen_shift_count(s, decode, &can_be_zero, &count, decode->op[2].unit); if (!count) { return; -- cgit v1.1