From: Mike Frysinger <vapier@gentoo.org>
To: gdb-patches@sourceware.org
Subject: [PATCH 06/15] sim: erc32: fix -Wshadow=local warnings
Date: Thu, 21 Dec 2023 20:23:46 -0500 [thread overview]
Message-ID: <20231222012355.7504-6-vapier@gentoo.org> (raw)
In-Reply-To: <20231222012355.7504-1-vapier@gentoo.org>
Rename shadowed vars with different types to avoid confusion.
---
sim/erc32/exec.c | 63 ++++++++++++++++++++++++------------------------
1 file changed, 31 insertions(+), 32 deletions(-)
diff --git a/sim/erc32/exec.c b/sim/erc32/exec.c
index 10a9dae603c0..c8186df02f1d 100644
--- a/sim/erc32/exec.c
+++ b/sim/erc32/exec.c
@@ -707,7 +707,7 @@ dispatch_instruction(struct pstate *sregs)
case DIVScc:
{
int sign;
- uint32_t result, remainder;
+ uint32_t uresult, remainder;
int c0, y31;
if (!sparclite) {
@@ -723,7 +723,7 @@ dispatch_instruction(struct pstate *sregs)
Otherwise, calculate remainder + divisor. */
if (sign == 0)
operand2 = ~operand2 + 1;
- result = remainder + operand2;
+ uresult = remainder + operand2;
/* The SPARClite User's Manual is not clear on how
the "carry out" of the above ALU operation is to
@@ -733,24 +733,23 @@ dispatch_instruction(struct pstate *sregs)
even in cases where the divisor is subtracted
from the remainder. FIXME: get the true story
from Fujitsu. */
- c0 = result < (uint32_t) remainder
- || result < (uint32_t) operand2;
+ c0 = uresult < remainder || uresult < (uint32_t) operand2;
- if (result & 0x80000000)
+ if (uresult & 0x80000000)
sregs->psr |= PSR_N;
else
sregs->psr &= ~PSR_N;
y31 = (sregs->y & 0x80000000) == 0x80000000;
- if (result == 0 && sign == y31)
+ if (uresult == 0 && sign == y31)
sregs->psr |= PSR_Z;
else
sregs->psr &= ~PSR_Z;
sign = (sign && !y31) || (!c0 && (sign || !y31));
- if (sign ^ (result >> 31))
+ if (sign ^ (uresult >> 31))
sregs->psr |= PSR_V;
else
sregs->psr &= ~PSR_V;
@@ -760,7 +759,7 @@ dispatch_instruction(struct pstate *sregs)
else
sregs->psr &= ~PSR_C;
- sregs->y = result;
+ sregs->y = uresult;
if (rd != 0)
*rdd = (rs1 << 1) | !sign;
@@ -773,21 +772,21 @@ dispatch_instruction(struct pstate *sregs)
break;
case SMULCC:
{
- uint32_t result;
+ uint32_t uresult;
- mul64 (rs1, operand2, &sregs->y, &result, 1);
+ mul64 (rs1, operand2, &sregs->y, &uresult, 1);
- if (result & 0x80000000)
+ if (uresult & 0x80000000)
sregs->psr |= PSR_N;
else
sregs->psr &= ~PSR_N;
- if (result == 0)
+ if (uresult == 0)
sregs->psr |= PSR_Z;
else
sregs->psr &= ~PSR_Z;
- *rdd = result;
+ *rdd = uresult;
}
break;
case UMUL:
@@ -797,21 +796,21 @@ dispatch_instruction(struct pstate *sregs)
break;
case UMULCC:
{
- uint32_t result;
+ uint32_t uresult;
- mul64 (rs1, operand2, &sregs->y, &result, 0);
+ mul64 (rs1, operand2, &sregs->y, &uresult, 0);
- if (result & 0x80000000)
+ if (uresult & 0x80000000)
sregs->psr |= PSR_N;
else
sregs->psr &= ~PSR_N;
- if (result == 0)
+ if (uresult == 0)
sregs->psr |= PSR_Z;
else
sregs->psr &= ~PSR_Z;
- *rdd = result;
+ *rdd = uresult;
}
break;
case SDIV:
@@ -831,7 +830,7 @@ dispatch_instruction(struct pstate *sregs)
break;
case SDIVCC:
{
- uint32_t result;
+ uint32_t uresult;
if (sparclite) {
sregs->trap = TRAP_UNIMP;
@@ -843,14 +842,14 @@ dispatch_instruction(struct pstate *sregs)
break;
}
- div64 (sregs->y, rs1, operand2, &result, 1);
+ div64 (sregs->y, rs1, operand2, &uresult, 1);
- if (result & 0x80000000)
+ if (uresult & 0x80000000)
sregs->psr |= PSR_N;
else
sregs->psr &= ~PSR_N;
- if (result == 0)
+ if (uresult == 0)
sregs->psr |= PSR_Z;
else
sregs->psr &= ~PSR_Z;
@@ -858,7 +857,7 @@ dispatch_instruction(struct pstate *sregs)
/* FIXME: should set overflow flag correctly. */
sregs->psr &= ~(PSR_C | PSR_V);
- *rdd = result;
+ *rdd = uresult;
}
break;
case UDIV:
@@ -878,7 +877,7 @@ dispatch_instruction(struct pstate *sregs)
break;
case UDIVCC:
{
- uint32_t result;
+ uint32_t uresult;
if (sparclite) {
sregs->trap = TRAP_UNIMP;
@@ -890,14 +889,14 @@ dispatch_instruction(struct pstate *sregs)
break;
}
- div64 (sregs->y, rs1, operand2, &result, 0);
+ div64 (sregs->y, rs1, operand2, &uresult, 0);
- if (result & 0x80000000)
+ if (uresult & 0x80000000)
sregs->psr |= PSR_N;
else
sregs->psr &= ~PSR_N;
- if (result == 0)
+ if (uresult == 0)
sregs->psr |= PSR_Z;
else
sregs->psr &= ~PSR_Z;
@@ -905,7 +904,7 @@ dispatch_instruction(struct pstate *sregs)
/* FIXME: should set overflow flag correctly. */
sregs->psr &= ~(PSR_C | PSR_V);
- *rdd = result;
+ *rdd = uresult;
}
break;
case IXNOR:
@@ -1168,7 +1167,7 @@ dispatch_instruction(struct pstate *sregs)
case SCAN:
{
- uint32_t result, mask;
+ uint32_t uresult, mask;
int i;
if (!sparclite) {
@@ -1176,12 +1175,12 @@ dispatch_instruction(struct pstate *sregs)
break;
}
mask = (operand2 & 0x80000000) | (operand2 >> 1);
- result = rs1 ^ mask;
+ uresult = rs1 ^ mask;
for (i = 0; i < 32; i++) {
- if (result & 0x80000000)
+ if (uresult & 0x80000000)
break;
- result <<= 1;
+ uresult <<= 1;
}
*rdd = i == 32 ? 63 : i;
--
2.43.0
next prev parent reply other threads:[~2023-12-22 1:24 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-22 1:23 [PATCH 01/15] sim: aarch64: " Mike Frysinger
2023-12-22 1:23 ` [PATCH 02/15] sim: arm: " Mike Frysinger
2023-12-22 1:23 ` [PATCH 03/15] sim: bfin: " Mike Frysinger
2023-12-22 1:23 ` [PATCH 04/15] sim: common: " Mike Frysinger
2023-12-22 1:23 ` [PATCH 05/15] sim: cris: " Mike Frysinger
2023-12-22 1:23 ` Mike Frysinger [this message]
2023-12-22 1:23 ` [PATCH 07/15] sim: frv: " Mike Frysinger
2023-12-22 1:23 ` [PATCH 08/15] sim: h8300: " Mike Frysinger
2023-12-22 1:23 ` [PATCH 09/15] sim: iq2000: " Mike Frysinger
2023-12-22 1:23 ` [PATCH 10/15] sim: m68hc11: " Mike Frysinger
2023-12-22 1:23 ` [PATCH 11/15] sim: mips: " Mike Frysinger
2023-12-22 1:23 ` [PATCH 12/15] sim: ppc: " Mike Frysinger
2023-12-22 1:23 ` [PATCH 13/15] sim: riscv: " Mike Frysinger
2023-12-22 1:23 ` [PATCH 14/15] sim: sh: " Mike Frysinger
2023-12-22 1:23 ` [PATCH 15/15] sim: warnings: enable -Wshadow=local Mike Frysinger
2023-12-22 15:26 ` Tom Tromey
2023-12-23 4:28 ` [PATCH] sim: m32c: fix -Wshadow=local warnings Mike Frysinger
2023-12-23 4:28 ` [PATCH] sim: cris: disable -Wshadow=local in generated mloop files Mike Frysinger
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