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[ppc64le] Bug fixes - Backport #77202

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[ppc64le] Bug fixes - Backport #77202

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44b121d
[ppc64le] Bug fixes
alhad-deshpande Aug 30, 2022
71f2ac8
[ppc64le] Fixed thunk address 8 byte alignment issue
alhad-deshpande Sep 8, 2022
9a612ae
Merge branch 'dotnet:release/7.0' into release/7.0
alhad-deshpande Sep 8, 2022
a4d8616
Merge branch 'dotnet:release/7.0' into release/7.0
alhad-deshpande Oct 19, 2022
daf76ab
[ppc64le] Bug fixes
alhad-deshpande Oct 19, 2022
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[ppc64le] Bug fixes
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@alhad-deshpande
alhad-deshpande committed Oct 19, 2022
commit daf76ab18d01cf7b276d7759098107bdd832243e
26 changes: 13 additions & 13 deletions src/mono/mono/mini/mini-ppc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -3782,23 +3782,11 @@ mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
ppc_addis (code, ppc_r12, cfg->frame_reg, ppc_ha(cfg->stack_usage));
ppc_addi (code, ppc_r12, ppc_r12, cfg->stack_usage);
}
if (!cfg->method->save_lmf) {
pos = 0;
for (i = 31; i >= 13; --i) {
if (cfg->used_int_regs & (1 << i)) {
pos += sizeof (target_mgreg_t);
ppc_ldptr (code, i, -pos, ppc_r12);
}
}
} else {
/* FIXME restore from MonoLMF: though this can't happen yet */
}

/* Copy arguments on the stack to our argument area */
if (call->stack_usage) {
code = emit_memcpy (code, call->stack_usage, ppc_r12, PPC_STACK_PARAM_OFFSET, ppc_sp, PPC_STACK_PARAM_OFFSET);
/* r12 was clobbered */
g_assert (cfg->frame_reg == ppc_sp);
if (ppc_is_imm16 (cfg->stack_usage)) {
ppc_addi (code, ppc_r12, cfg->frame_reg, cfg->stack_usage);
} else {
Expand All @@ -3809,6 +3797,18 @@ mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
}
}

if (!cfg->method->save_lmf) {
pos = 0;
for (i = 31; i >= 13; --i) {
if (cfg->used_int_regs & (1 << i)) {
pos += sizeof (target_mgreg_t);
ppc_ldptr (code, i, -pos, ppc_r12);
}
}
} else {
/* FIXME restore from MonoLMF: though this can't happen yet */
}

ppc_mr (code, ppc_sp, ppc_r12);
mono_add_patch_info (cfg, (guint8*) code - cfg->native_code, MONO_PATCH_INFO_METHOD_JUMP, call->method);
cfg->thunk_area += THUNK_SIZE;
Expand Down Expand Up @@ -3837,7 +3837,7 @@ mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
}
case OP_CHECK_THIS:
/* ensure ins->sreg1 is not NULL */
ppc_ldptr (code, ppc_r0, 0, ins->sreg1);
ppc_lbz (code, ppc_r0, 0, ins->sreg1);
break;
case OP_ARGLIST: {
long cookie_offset = cfg->sig_cookie + cfg->stack_usage;
Expand Down