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ssa: don't simplify FPU ops because of Inf of NaN

This commit is contained in:
Flyinghead 2019-06-12 08:52:42 +02:00
parent ff745ee4fe
commit e537d92bcc
1 changed files with 4 additions and 4 deletions
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8
core/hw/sh4/dyna/ssa.h
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@ -366,8 +366,8 @@ private:
{ {
// a & 0 == 0 // a & 0 == 0
// a * 0 == 0 // a * 0 == 0
if (op.op == shop_and || op.op == shop_mul_i32 || op.op == shop_mul_s16 || op.op == shop_mul_u16 // Not true for FPU ops because of Inf and NaN
|| op.op == shop_fmul) if (op.op == shop_and || op.op == shop_mul_i32 || op.op == shop_mul_s16 || op.op == shop_mul_u16)
{ {
//printf("%08x ZERO %s\n", block->vaddr + op.guest_offs, op.dissasm().c_str()); //printf("%08x ZERO %s\n", block->vaddr + op.guest_offs, op.dissasm().c_str());
ReplaceByMov32(op, 0); ReplaceByMov32(op, 0);
@ -386,9 +386,9 @@ private:
// a ^ 0 == a // a ^ 0 == a
// a >> 0 == a // a >> 0 == a
// a << 0 == a // a << 0 == a
// Not true for FPU ops because of Inf and NaN
else if (op.op == shop_add || op.op == shop_sub || op.op == shop_or || op.op == shop_xor else if (op.op == shop_add || op.op == shop_sub || op.op == shop_or || op.op == shop_xor
|| op.op == shop_shl || op.op == shop_shr || op.op == shop_sar || op.op == shop_shad || op.op == shop_shld || op.op == shop_shl || op.op == shop_shr || op.op == shop_sar || op.op == shop_shad || op.op == shop_shld)
|| op.op == shop_fadd || op.op == shop_fsub)
{ {
//printf("%08x IDEN %s\n", block->vaddr + op.guest_offs, op.dissasm().c_str()); //printf("%08x IDEN %s\n", block->vaddr + op.guest_offs, op.dissasm().c_str());
ReplaceByMov32(op); ReplaceByMov32(op);