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[PATCH v6 20/72] target/riscv: rvv-1.0: fix address index overflow bug o
From: |
frank . chang |
Subject: |
[PATCH v6 20/72] target/riscv: rvv-1.0: fix address index overflow bug of indexed load/store insns |
Date: |
Tue, 12 Jan 2021 17:38:54 +0800 |
From: Frank Chang <frank.chang@sifive.com>
Replace ETYPE from signed int to unsigned int to prevent index overflow
issue, which would lead to wrong index address.
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/riscv/vector_helper.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index 368259f75a0..9349a36b41b 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -361,10 +361,10 @@ static target_ulong NAME(target_ulong base, \
return (base + *((ETYPE *)vs2 + H(idx))); \
}
-GEN_VEXT_GET_INDEX_ADDR(idx_b, int8_t, H1)
-GEN_VEXT_GET_INDEX_ADDR(idx_h, int16_t, H2)
-GEN_VEXT_GET_INDEX_ADDR(idx_w, int32_t, H4)
-GEN_VEXT_GET_INDEX_ADDR(idx_d, int64_t, H8)
+GEN_VEXT_GET_INDEX_ADDR(idx_b, uint8_t, H1)
+GEN_VEXT_GET_INDEX_ADDR(idx_h, uint16_t, H2)
+GEN_VEXT_GET_INDEX_ADDR(idx_w, uint32_t, H4)
+GEN_VEXT_GET_INDEX_ADDR(idx_d, uint64_t, H8)
static inline void
vext_ldst_index(void *vd, void *v0, target_ulong base,
--
2.17.1
- [PATCH v6 14/72] target/riscv: rvv-1.0: update check functions, (continued)
- [PATCH v6 14/72] target/riscv: rvv-1.0: update check functions, frank . chang, 2021/01/12
- [PATCH v6 17/72] target/riscv: rvv-1.0: configure instructions, frank . chang, 2021/01/12
- [PATCH v6 18/72] target/riscv: rvv-1.0: stride load and store instructions, frank . chang, 2021/01/12
- [PATCH v6 21/72] target/riscv: rvv-1.0: fault-only-first unit stride load, frank . chang, 2021/01/12
- [PATCH v6 19/72] target/riscv: rvv-1.0: index load and store instructions, frank . chang, 2021/01/12
- [PATCH v6 20/72] target/riscv: rvv-1.0: fix address index overflow bug of indexed load/store insns,
frank . chang <=
- [PATCH v6 22/72] target/riscv: rvv-1.0: amo operations, frank . chang, 2021/01/12
- [PATCH v6 23/72] target/riscv: rvv-1.0: load/store whole register instructions, frank . chang, 2021/01/12
- [PATCH v6 24/72] target/riscv: rvv-1.0: update vext_max_elems() for load/store insns, frank . chang, 2021/01/12
- [PATCH v6 25/72] target/riscv: rvv-1.0: take fractional LMUL into vector max elements calculation, frank . chang, 2021/01/12
- [PATCH v6 27/72] target/riscv: rvv-1.0: floating-point classify instructions, frank . chang, 2021/01/12