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* [binutils-gdb] sim: erc32: fix -Wshadow=local warnings
@ 2023-12-23 4:31 Michael Frysinger
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From: Michael Frysinger @ 2023-12-23 4:31 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a4531a4010a95555cd41b7bd492f2e441f6c69fe
commit a4531a4010a95555cd41b7bd492f2e441f6c69fe
Author: Mike Frysinger <vapier@gentoo.org>
Date: Thu Dec 21 20:09:00 2023 -0500
sim: erc32: fix -Wshadow=local warnings
Rename shadowed vars with different types to avoid confusion.
Diff:
---
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 10a9dae603c..c8186df02f1 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;
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2023-12-23 4:31 [binutils-gdb] sim: erc32: fix -Wshadow=local warnings Michael Frysinger
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