| Message ID | 20231013171012.122980-14-richard.henderson@linaro.org |
|---|---|
| State | Superseded |
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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: jniethe5@gmail.com
Subject: [PATCH v4 13/13] tcg/ppc: Disable TCG_REG_TB for Power9/Power10
Date: Fri, 13 Oct 2023 10:10:12 -0700
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|
| Series |
tcg/ppc: direct branching, power9, power10
|
expand
|
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc index 6496f76e41..c31da4da9d 100644 --- a/tcg/ppc/tcg-target.c.inc +++ b/tcg/ppc/tcg-target.c.inc @@ -83,7 +83,7 @@ #define TCG_VEC_TMP2 TCG_REG_V1 #define TCG_REG_TB TCG_REG_R31 -#define USE_REG_TB (TCG_TARGET_REG_BITS == 64) +#define USE_REG_TB (TCG_TARGET_REG_BITS == 64 && !have_isa_3_00) /* Shorthand for size of a pointer. Avoid promotion to unsigned. */ #define SZP ((int)sizeof(void *))
This appears to slightly improve performance on power9/10. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- tcg/ppc/tcg-target.c.inc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)