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[mono][1/2] Add SIMD Support for s390x #116669

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[mono][1/2] Add SIMD Support for s390x #116669

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17 changes: 11 additions & 6 deletions src/mono/mono/mini/mini-codegen.c
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Original file line number Diff line number Diff line change
Expand Up @@ -144,10 +144,13 @@ mono_regstate_assign (MonoRegState *rs)
/* The regalloc may fail if fp and simd logical regbanks share the same physical reg bank and
* if the values here are not the same.
*/
/* s390x has unequal regbank masks for vector and floats*/
#ifndef TARGET_S390X
g_assert(regbank_callee_regs [MONO_REG_SIMD] == regbank_callee_regs [MONO_REG_DOUBLE]);
g_assert(regbank_callee_saved_regs [MONO_REG_SIMD] == regbank_callee_saved_regs [MONO_REG_DOUBLE]);
g_assert(regbank_size [MONO_REG_SIMD] == regbank_size [MONO_REG_DOUBLE]);
#endif
g_assert(regbank_callee_saved_regs [MONO_REG_SIMD] == regbank_callee_saved_regs [MONO_REG_DOUBLE]);
#endif

if (rs->next_vreg > rs->vassign_size) {
g_free (rs->vassign);
Expand Down Expand Up @@ -221,8 +224,9 @@ mono_regstate_alloc_general (MonoRegState *rs, regmask_t allow, int bank)
if (mirrored_bank == -1)
return i;

rs->free_mask [mirrored_bank] = rs->free_mask [bank];
return i;
rs->free_mask [mirrored_bank] = (((MONO_ARCH_CALLEE_FREGS & MONO_ARCH_CALLEE_XREGS) & rs->free_mask [bank])
|((MONO_ARCH_CALLEE_FREGS ^ MONO_ARCH_CALLEE_XREGS) & rs->free_mask [mirrored_bank]));
return i;
}
}
return -1;
Expand All @@ -240,7 +244,8 @@ mono_regstate_free_general (MonoRegState *rs, int reg, int bank)
mirrored_bank = get_mirrored_bank (bank);
if (mirrored_bank == -1)
return;
rs->free_mask [mirrored_bank] = rs->free_mask [bank];
rs->free_mask [mirrored_bank] = (((MONO_ARCH_CALLEE_FREGS & MONO_ARCH_CALLEE_XREGS) & rs->free_mask [bank])
|((MONO_ARCH_CALLEE_FREGS ^ MONO_ARCH_CALLEE_XREGS) & rs->free_mask [mirrored_bank]));
rs->symbolic [mirrored_bank][reg] = 0;
}
}
Expand Down Expand Up @@ -1081,8 +1086,8 @@ assign_reg (MonoCompile *cfg, MonoRegState *rs, int reg, int hreg, int bank)
/* Make sure the other logical reg bank that this bank shares
* a single hard reg bank knows that this hard reg is not free.
*/
rs->free_mask [mirrored_bank] = rs->free_mask [bank];

rs->free_mask [mirrored_bank] = (((MONO_ARCH_CALLEE_FREGS & MONO_ARCH_CALLEE_XREGS) & rs->free_mask [bank])
|((MONO_ARCH_CALLEE_FREGS ^ MONO_ARCH_CALLEE_XREGS) & rs->free_mask [mirrored_bank]));
/* Mark the other logical bank that the this bank shares
* a single hard reg bank with as mirrored.
*/
Expand Down
6 changes: 4 additions & 2 deletions src/mono/mono/mini/mini-s390x.h
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Expand Up @@ -83,7 +83,8 @@ struct SeqPointInfo {
#define MONO_ARCH_HAVE_SETUP_RESUME_FROM_SIGNAL_HANDLER_CTX 1
#define MONO_ARCH_HAVE_UNWIND_BACKTRACE 1
#define MONO_ARCH_FLOAT32_SUPPORTED 1

#define MONO_ARCH_NEED_SIMD_BANK 1
#define MONO_ARCH_USE_SHARED_FP_SIMD_BANK 1
#define S390_STACK_ALIGNMENT 8
#define S390_FIRST_ARG_REG s390_r2
#define S390_LAST_ARG_REG s390_r6
Expand Down Expand Up @@ -147,8 +148,9 @@ struct SeqPointInfo {
/*-----------------------------------------------*/
/* SIMD Related Definitions */
/*-----------------------------------------------*/

/* f0 overlaps with v0 and vr16 is used internally */
#define MONO_MAX_XREGS 31
#define MONO_ARCH_CALLEE_XREGS 0xFFFEFFFE
#define MONO_ARCH_CALLEE_XREGS 0x0
#define MONO_ARCH_CALLEE_SAVED_XREGS 0x0

Expand Down
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