[v1] tcg: exit_tb tidy, goto_tb reorg

[PATCH 21/22] tcg/riscv: Introduce OPC_NOP

Richard Henderson posted 22 patches 3 years, 2 months ago

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Maintainers: Richard Henderson <richard.henderson@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, WANG Xuerui <git@xen0n.name>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Aurelien Jarno <aurelien@aurel32.net>, Huacai Chen <chenhuacai@kernel.org>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <Alistair.Francis@wdc.com>, Stefan Weil <sw@weilnetz.de>

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[PATCH 21/22] tcg/riscv: Introduce OPC_NOP

Posted by Richard Henderson 3 years, 2 months ago

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/riscv/tcg-target.c.inc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
index 37baae9cda..de029d62b4 100644
--- a/tcg/riscv/tcg-target.c.inc
+++ b/tcg/riscv/tcg-target.c.inc
@@ -254,6 +254,7 @@ typedef enum {
 #endif
 
     OPC_FENCE = 0x0000000f,
+    OPC_NOP   = OPC_ADDI,   /* nop = addi r0,r0,0 */
 } RISCVInsn;
 
 /*
@@ -390,7 +391,7 @@ static void tcg_out_nop_fill(tcg_insn_unit *p, int count)
 {
     int i;
     for (i = 0; i < count; ++i) {
-        p[i] = encode_i(OPC_ADDI, TCG_REG_ZERO, TCG_REG_ZERO, 0);
+        p[i] = OPC_NOP;
     }
 }
 
-- 
2.34.1

Re: [PATCH 21/22] tcg/riscv: Introduce OPC_NOP

Posted by Philippe Mathieu-Daudé 3 years, 2 months ago

On 6/12/22 05:17, Richard Henderson wrote:
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>   tcg/riscv/tcg-target.c.inc | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>