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[gdb/tdep] Use raw_supply_zeroed in i387_supply_xsave

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Use reg_buffer::raw_supply_zeroed in i387_supply_xsave.

Tested on x86_64-linux.

Approved-By: Tom Tromey <tom@tromey.com>
This commit is contained in:
Tom de Vries 2024-11-08 10:00:14 +01:00
parent a452ed5b5c
commit 39d45a7031
1 changed files with 19 additions and 20 deletions
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39
gdb/i387-tdep.c
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@ -1031,7 +1031,6 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
unsigned int zmm_endlo_regnum = I387_ZMM0H_REGNUM (tdep)
+ std::min (tdep->num_zmm_regs, 16);
ULONGEST clear_bv;
static const gdb_byte zero[I386_MAX_REGISTER_SIZE] = { 0 };
enum
{
none = 0x0,
@ -1102,14 +1101,14 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
case pkeys:
if ((clear_bv & X86_XSTATE_PKRU))
regcache->raw_supply (regnum, zero);
regcache->raw_supply_zeroed (regnum);
else
regcache->raw_supply (regnum, XSAVE_PKEYS_ADDR (tdep, regs, regnum));
return;
case avx512_zmm0_h:
if ((clear_bv & X86_XSTATE_ZMM_H))
regcache->raw_supply (regnum, zero);
regcache->raw_supply_zeroed (regnum);
else
regcache->raw_supply (regnum,
XSAVE_AVX512_ZMM0_H_ADDR (tdep, regs, regnum));
@ -1117,7 +1116,7 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
case avx512_zmm16_h:
if ((clear_bv & X86_XSTATE_ZMM))
regcache->raw_supply (regnum, zero);
regcache->raw_supply_zeroed (regnum);
else
regcache->raw_supply (regnum,
XSAVE_AVX512_ZMM16_H_ADDR (tdep, regs, regnum));
@ -1125,14 +1124,14 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
case avx512_k:
if ((clear_bv & X86_XSTATE_K))
regcache->raw_supply (regnum, zero);
regcache->raw_supply_zeroed (regnum);
else
regcache->raw_supply (regnum, XSAVE_AVX512_K_ADDR (tdep, regs, regnum));
return;
case avx512_ymmh_avx512:
if ((clear_bv & X86_XSTATE_ZMM))
regcache->raw_supply (regnum, zero);
regcache->raw_supply_zeroed (regnum);
else
regcache->raw_supply (regnum,
XSAVE_YMM_H_AVX512_ADDR (tdep, regs, regnum));
@ -1140,7 +1139,7 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
case avx512_xmm_avx512:
if ((clear_bv & X86_XSTATE_ZMM))
regcache->raw_supply (regnum, zero);
regcache->raw_supply_zeroed (regnum);
else
regcache->raw_supply (regnum,
XSAVE_XMM_AVX512_ADDR (tdep, regs, regnum));
@ -1148,21 +1147,21 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
case avxh:
if ((clear_bv & X86_XSTATE_AVX))
regcache->raw_supply (regnum, zero);
regcache->raw_supply_zeroed (regnum);
else
regcache->raw_supply (regnum, XSAVE_AVXH_ADDR (tdep, regs, regnum));
return;
case sse:
if ((clear_bv & X86_XSTATE_SSE))
regcache->raw_supply (regnum, zero);
regcache->raw_supply_zeroed (regnum);
else
regcache->raw_supply (regnum, FXSAVE_ADDR (tdep, regs, regnum));
return;
case x87:
if ((clear_bv & X86_XSTATE_X87))
regcache->raw_supply (regnum, zero);
regcache->raw_supply_zeroed (regnum);
else
regcache->raw_supply (regnum, FXSAVE_ADDR (tdep, regs, regnum));
return;
@ -1176,7 +1175,7 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
for (i = I387_PKRU_REGNUM (tdep);
i < I387_PKEYSEND_REGNUM (tdep);
i++)
regcache->raw_supply (i, zero);
regcache->raw_supply_zeroed (i);
}
else
{
@ -1193,7 +1192,7 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
if ((clear_bv & X86_XSTATE_ZMM_H))
{
for (i = I387_ZMM0H_REGNUM (tdep); i < zmm_endlo_regnum; i++)
regcache->raw_supply (i, zero);
regcache->raw_supply_zeroed (i);
}
else
{
@ -1211,7 +1210,7 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
for (i = I387_K0_REGNUM (tdep);
i < I387_KEND_REGNUM (tdep);
i++)
regcache->raw_supply (i, zero);
regcache->raw_supply_zeroed (i);
}
else
{
@ -1229,15 +1228,15 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
{
for (i = I387_ZMM16H_REGNUM (tdep);
i < I387_ZMMENDH_REGNUM (tdep); i++)
regcache->raw_supply (i, zero);
regcache->raw_supply_zeroed (i);
for (i = I387_YMM16H_REGNUM (tdep);
i < I387_YMMH_AVX512_END_REGNUM (tdep);
i++)
regcache->raw_supply (i, zero);
regcache->raw_supply_zeroed (i);
for (i = I387_XMM16_REGNUM (tdep);
i < I387_XMM_AVX512_END_REGNUM (tdep);
i++)
regcache->raw_supply (i, zero);
regcache->raw_supply_zeroed (i);
}
else
{
@ -1264,7 +1263,7 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
for (i = I387_YMM0H_REGNUM (tdep);
i < I387_YMMENDH_REGNUM (tdep);
i++)
regcache->raw_supply (i, zero);
regcache->raw_supply_zeroed (i);
}
else
{
@ -1283,7 +1282,7 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
for (i = I387_XMM0_REGNUM (tdep);
i < I387_MXCSR_REGNUM (tdep);
i++)
regcache->raw_supply (i, zero);
regcache->raw_supply_zeroed (i);
}
else
{
@ -1301,7 +1300,7 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
for (i = I387_ST0_REGNUM (tdep);
i < I387_FCTRL_REGNUM (tdep);
i++)
regcache->raw_supply (i, zero);
regcache->raw_supply_zeroed (i);
}
else
{
@ -1336,7 +1335,7 @@ i387_supply_xsave (struct regcache *regcache, int regnum,
regcache->raw_supply (i, buf);
}
else
regcache->raw_supply (i, zero);
regcache->raw_supply_zeroed (i);
}
/* Most of the FPU control registers occupy only 16 bits in
the xsave extended state. Give those a special treatment. */