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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: qemu-arm@nongnu.org
Subject: [PATCH v4 10/45] target/arm: Drop always-true test in define_arm_vh_e2h_redirects_aliases
Date: Sat, 30 Apr 2022 22:49:52 -0700	[thread overview]
Message-ID: <20220501055028.646596-11-richard.henderson@linaro.org> (raw)
In-Reply-To: <20220501055028.646596-1-richard.henderson@linaro.org>

The new_key field is always non-zero -- drop the if.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v4: Drop change to crn et al.
---
 target/arm/helper.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/target/arm/helper.c b/target/arm/helper.c
index 50ad2e3e37..e5fc22bb69 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -5914,7 +5914,9 @@ static void define_arm_vh_e2h_redirects_aliases(ARMCPU *cpu)
 
     for (i = 0; i < ARRAY_SIZE(aliases); i++) {
         const struct E2HAlias *a = &aliases[i];
-        ARMCPRegInfo *src_reg, *dst_reg;
+        ARMCPRegInfo *src_reg, *dst_reg, *new_reg;
+        uint32_t *new_key;
+        bool ok;
 
         if (a->feature && !a->feature(&cpu->isar)) {
             continue;
@@ -5933,19 +5935,16 @@ static void define_arm_vh_e2h_redirects_aliases(ARMCPU *cpu)
         g_assert(src_reg->opaque == NULL);
 
         /* Create alias before redirection so we dup the right data. */
-        if (a->new_key) {
-            ARMCPRegInfo *new_reg = g_memdup(src_reg, sizeof(ARMCPRegInfo));
-            uint32_t *new_key = g_memdup(&a->new_key, sizeof(uint32_t));
-            bool ok;
+        new_reg = g_memdup(src_reg, sizeof(ARMCPRegInfo));
+        new_key = g_memdup(&a->new_key, sizeof(uint32_t));
 
-            new_reg->name = a->new_name;
-            new_reg->type |= ARM_CP_ALIAS;
-            /* Remove PL1/PL0 access, leaving PL2/PL3 R/W in place.  */
-            new_reg->access &= PL2_RW | PL3_RW;
+        new_reg->name = a->new_name;
+        new_reg->type |= ARM_CP_ALIAS;
+        /* Remove PL1/PL0 access, leaving PL2/PL3 R/W in place.  */
+        new_reg->access &= PL2_RW;
 
-            ok = g_hash_table_insert(cpu->cp_regs, new_key, new_reg);
-            g_assert(ok);
-        }
+        ok = g_hash_table_insert(cpu->cp_regs, new_key, new_reg);
+        g_assert(ok);
 
         src_reg->opaque = dst_reg;
         src_reg->orig_readfn = src_reg->readfn ?: raw_read;
-- 
2.34.1



  parent reply	other threads:[~2022-05-01  6:09 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-01  5:49 [PATCH v4 00/45] target/arm: Cleanups, new features, new cpus Richard Henderson
2022-05-01  5:49 ` [PATCH v4 01/45] target/arm: Split out cpregs.h Richard Henderson
2022-05-01  5:49 ` [PATCH v4 02/45] target/arm: Reorg CPAccessResult and access_check_cp_reg Richard Henderson
2022-05-01  5:49 ` [PATCH v4 03/45] target/arm: Replace sentinels with ARRAY_SIZE in cpregs.h Richard Henderson
2022-05-01  5:49 ` [PATCH v4 04/45] target/arm: Make some more cpreg data static const Richard Henderson
2022-05-01  5:49 ` [PATCH v4 05/45] target/arm: Reorg ARMCPRegInfo type field bits Richard Henderson
2022-05-03 15:58   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 06/45] target/arm: Avoid bare abort() or assert(0) Richard Henderson
2022-05-01 10:47   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 07/45] target/arm: Change cpreg access permissions to enum Richard Henderson
2022-05-01  5:49 ` [PATCH v4 08/45] target/arm: Name CPState type Richard Henderson
2022-05-01  5:49 ` [PATCH v4 09/45] target/arm: Name CPSecureState type Richard Henderson
2022-05-01  5:49 ` Richard Henderson [this message]
2022-05-03 15:59   ` [PATCH v4 10/45] target/arm: Drop always-true test in define_arm_vh_e2h_redirects_aliases Peter Maydell
2022-05-01  5:49 ` [PATCH v4 11/45] target/arm: Store cpregs key in the hash table directly Richard Henderson
2022-05-03 16:02   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 12/45] target/arm: Merge allocation of the cpreg and its name Richard Henderson
2022-05-03 16:07   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 13/45] target/arm: Hoist computation of key in add_cpreg_to_hashtable Richard Henderson
2022-05-03 16:13   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 14/45] target/arm: Consolidate cpreg updates " Richard Henderson
2022-05-03 16:15   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 15/45] target/arm: Use bool for is64 and ns " Richard Henderson
2022-05-03 16:15   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 16/45] target/arm: Hoist isbanked computation " Richard Henderson
2022-05-03 16:16   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 17/45] target/arm: Perform override check early " Richard Henderson
2022-05-03 16:21   ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 18/45] target/arm: Reformat comments " Richard Henderson
2022-05-03 16:22   ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 19/45] target/arm: Remove HOST_BIG_ENDIAN ifdef " Richard Henderson
2022-05-03 16:25   ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 20/45] target/arm: Handle cpreg registration for missing EL Richard Henderson
2022-05-03 16:34   ` Peter Maydell
2022-05-03 16:45     ` Richard Henderson
2022-05-03 16:50       ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 21/45] target/arm: Drop EL3 no EL2 fallbacks Richard Henderson
2022-05-03 17:13   ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 22/45] target/arm: Merge zcr reginfo Richard Henderson
2022-05-03 17:12   ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 23/45] target/arm: Add isar predicates for FEAT_Debugv8p2 Richard Henderson
2022-05-01  5:50 ` [PATCH v4 24/45] target/arm: Adjust definition of CONTEXTIDR_EL2 Richard Henderson
2022-05-01  5:50 ` [PATCH v4 25/45] target/arm: Move cortex impdef sysregs to cpu_tcg.c Richard Henderson
2022-05-01  5:50 ` [PATCH v4 26/45] target/arm: Update qemu-system-arm -cpu max to cortex-a57 Richard Henderson
2022-05-01  5:50 ` [PATCH v4 27/45] target/arm: Set ID_DFR0.PerfMon for qemu-system-arm -cpu max Richard Henderson
2022-05-01  5:50 ` [PATCH v4 28/45] target/arm: Split out aa32_max_features Richard Henderson
2022-05-01  5:50 ` [PATCH v4 29/45] target/arm: Annotate arm_max_initfn with FEAT identifiers Richard Henderson
2022-05-01  5:50 ` [PATCH v4 30/45] target/arm: Use field names for manipulating EL2 and EL3 modes Richard Henderson
2022-05-01  5:50 ` [PATCH v4 31/45] target/arm: Enable FEAT_Debugv8p2 for -cpu max Richard Henderson
2022-05-01  5:50 ` [PATCH v4 32/45] target/arm: Enable FEAT_Debugv8p4 " Richard Henderson
2022-05-01  5:50 ` [PATCH v4 33/45] target/arm: Add isar_feature_{aa64,any}_ras Richard Henderson
2022-05-01  5:50 ` [PATCH v4 34/45] target/arm: Add minimal RAS registers Richard Henderson
2022-05-03 16:58   ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 35/45] target/arm: Enable SCR and HCR bits for RAS Richard Henderson
2022-05-01  5:50 ` [PATCH v4 36/45] target/arm: Implement virtual SError exceptions Richard Henderson
2022-05-01  5:50 ` [PATCH v4 37/45] target/arm: Implement ESB instruction Richard Henderson
2022-05-01  5:50 ` [PATCH v4 38/45] target/arm: Enable FEAT_RAS for -cpu max Richard Henderson
2022-05-01  5:50 ` [PATCH v4 39/45] target/arm: Enable FEAT_IESB " Richard Henderson
2022-05-01  5:50 ` [PATCH v4 40/45] target/arm: Enable FEAT_CSV2 " Richard Henderson
2022-05-01  5:50 ` [PATCH v4 41/45] target/arm: Enable FEAT_CSV2_2 " Richard Henderson
2022-05-03 17:10   ` Peter Maydell
2022-05-03 19:33     ` Richard Henderson
2022-05-01  5:50 ` [PATCH v4 42/45] target/arm: Enable FEAT_CSV3 " Richard Henderson
2022-05-01  5:50 ` [PATCH v4 43/45] target/arm: Enable FEAT_DGH " Richard Henderson
2022-05-01  5:50 ` [PATCH v4 44/45] target/arm: Define cortex-a76 Richard Henderson
2022-05-01  5:50 ` [PATCH v4 45/45] target/arm: Define neoverse-n1 Richard Henderson
2022-05-03 16:47 ` [PATCH v4 00/45] target/arm: Cleanups, new features, new cpus Peter Maydell

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