From: Daniel Henrique Barboza <danielhb413@gmail.com>
To: qemu-devel@nongnu.org
Cc: qemu-ppc@nongnu.org, stefanha@redhat.com,
"Víctor Colombo" <victor.colombo@eldorado.org.br>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Daniel Henrique Barboza" <danielhb413@gmail.com>
Subject: [PULL 27/38] target/ppc: Fix xvcmp* clearing FI bit
Date: Mon, 17 Oct 2022 16:19:58 -0300 [thread overview]
Message-ID: <20221017192009.92404-28-danielhb413@gmail.com> (raw)
In-Reply-To: <20221017192009.92404-1-danielhb413@gmail.com>
From: Víctor Colombo <victor.colombo@eldorado.org.br>
Vector instructions in general are not supposed to change the FI bit.
However, xvcmp* instructions are calling gen_helper_float_check_status,
which is leading to a cleared FI flag where it should be kept
unchanged.
As helper_float_check_status only affects inexact, overflow and
underflow, and the xvcmp* instructions don't change these flags, this
issue can be fixed by removing the call to helper_float_check_status.
By doing this, the FI bit in FPSCR will be preserved as expected.
Fixes: 00084a25adf ("target/ppc: introduce separate VSX_CMP macro for xvcmp* instructions")
Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221005121551.27957-1-victor.colombo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
target/ppc/translate/vsx-impl.c.inc | 1 -
1 file changed, 1 deletion(-)
diff --git a/target/ppc/translate/vsx-impl.c.inc b/target/ppc/translate/vsx-impl.c.inc
index 7acdbceec4..e6e5c45ffd 100644
--- a/target/ppc/translate/vsx-impl.c.inc
+++ b/target/ppc/translate/vsx-impl.c.inc
@@ -810,7 +810,6 @@ static void gen_##name(DisasContext *ctx) \
gen_helper_##name(ignored, cpu_env, xt, xa, xb); \
tcg_temp_free_i32(ignored); \
} \
- gen_helper_float_check_status(cpu_env); \
tcg_temp_free_ptr(xt); \
tcg_temp_free_ptr(xa); \
tcg_temp_free_ptr(xb); \
--
2.37.3
next prev parent reply other threads:[~2022-10-17 19:36 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-17 19:19 [PULL 00/38] ppc queue Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 01/38] MAINTAINERS: step back from PPC Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 02/38] target/ppc: restore powerpc_excp_booke doorbell interrupts Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 03/38] ppc440_bamboo: Remove unnecessary memsets Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 04/38] ppc4xx: Introduce Ppc4xxSdramBank struct Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 05/38] ppc4xx_sdram: Get rid of the init RAM hack Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 06/38] ppc4xx: Use Ppc4xxSdramBank in ppc4xx_sdram_banks() Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 07/38] ppc440_bamboo: Add missing 4 MiB valid memory size Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 08/38] ppc4xx_sdram: Move size check to ppc4xx_sdram_init() Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 09/38] ppc4xx_sdram: QOM'ify Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 10/38] ppc4xx_sdram: Drop extra zeros for readability Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 11/38] ppc440_sdram: Split off map/unmap of sdram banks for later reuse Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 12/38] ppc440_sdram: Implement enable bit in the DDR2 SDRAM controller Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 13/38] ppc440_sdram: Get rid of the init RAM hack Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 14/38] ppc440_sdram: Rename local variable for readability Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 15/38] ppc4xx_sdram: Rename functions to prevent name clashes Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 16/38] ppc440_sdram: Move RAM size check to ppc440_sdram_init Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 17/38] ppc440_sdram: QOM'ify Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 18/38] ppc440_uc.c: Move some macros to ppc4xx.h Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 19/38] ppc440_uc.c: Remove unneeded parenthesis Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 20/38] hw/ppc/meson: Allow e500 boards to be enabled separately Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 21/38] hw/gpio/meson: Introduce dedicated config switch for hw/gpio/mpc8xxx Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 22/38] docs/system/ppc/ppce500: Add heading for networking chapter Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 23/38] hw/ppc/e500: Reduce usage of sysbus API Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 24/38] hw/ppc/mpc8544ds: Rename wrongly named method Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 25/38] hw/ppc/mpc8544ds: Add platform bus Daniel Henrique Barboza
2022-10-17 19:19 ` [PULL 26/38] hw/ppc/e500: Remove if statement which is now always true Daniel Henrique Barboza
2022-10-17 19:19 ` Daniel Henrique Barboza [this message]
2022-10-17 19:19 ` [PULL 28/38] hw/ppc/spapr_pci.c: Use device_cold_reset() rather than device_legacy_reset() Daniel Henrique Barboza
2022-10-17 19:20 ` [PULL 29/38] qmp/hmp, device_tree.c: introduce dumpdtb Daniel Henrique Barboza
2022-10-17 19:20 ` [PULL 30/38] hw/nios2: set machine->fdt in nios2_load_dtb() Daniel Henrique Barboza
2022-10-17 19:20 ` [PULL 31/38] hw/ppc: set machine->fdt in bamboo_load_device_tree() Daniel Henrique Barboza
2022-10-17 19:20 ` [PULL 32/38] hw/ppc: set machine->fdt in sam460ex_load_device_tree() Daniel Henrique Barboza
2022-10-17 19:20 ` [PULL 33/38] hw/ppc: set machine->fdt in xilinx_load_device_tree() Daniel Henrique Barboza
2022-10-17 19:20 ` [PULL 34/38] hw/ppc: set machine->fdt in pegasos2_machine_reset() Daniel Henrique Barboza
2022-10-17 19:20 ` [PULL 35/38] hw/ppc: set machine->fdt in pnv_reset() Daniel Henrique Barboza
2022-10-17 19:20 ` [PULL 36/38] hw/ppc: set machine->fdt in spapr machine Daniel Henrique Barboza
2022-10-17 19:20 ` [PULL 37/38] hw/riscv: set machine->fdt in sifive_u_machine_init() Daniel Henrique Barboza
2022-10-17 19:20 ` [PULL 38/38] hw/riscv: set machine->fdt in spike_board_init() Daniel Henrique Barboza
2022-10-18 20:01 ` [PULL 00/38] ppc queue Stefan Hajnoczi
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