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PPC: Fix vsl[b/h/w] and vsr[b/h/w] with variable shift amounts.

This commit is contained in:
Dr. Chat 2017-05-15 11:07:19 -05:00
parent 4260e3819b
commit 7a3af9b2c4
1 changed files with 18 additions and 12 deletions
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30
src/xenia/cpu/backend/x64/x64_sequences.cc
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@ -5538,8 +5538,9 @@ struct VECTOR_SHL_V128
// See if the shift is equal first for a shortcut.
e.vpshuflw(e.xmm0, i.src2, 0b00000000);
e.vpshufd(e.xmm0, e.xmm0, 0b00000000);
e.vptest(e.xmm0, i.src2);
e.jnc(emu);
e.vpxor(e.xmm1, e.xmm0, i.src2);
e.vptest(e.xmm1, e.xmm1);
e.jnz(emu);
// Equal. Shift using vpsllw.
e.mov(e.rax, 0xF);
@ -5615,8 +5616,9 @@ struct VECTOR_SHL_V128
// Only bother with this check if shift amt isn't constant.
if (!i.src2.is_constant) {
e.vpshufd(e.xmm0, i.src2, 0b00000000);
e.vptest(e.xmm0, i.src2);
e.jnc(emu);
e.vpxor(e.xmm1, e.xmm0, i.src2);
e.vptest(e.xmm1, e.xmm1);
e.jnz(emu);
// Equal. Shift using vpsrad.
e.mov(e.rax, 0x1F);
@ -5722,8 +5724,9 @@ struct VECTOR_SHR_V128
if (!i.src2.is_constant) {
e.vpshuflw(e.xmm0, i.src2, 0b00000000);
e.vpshufd(e.xmm0, e.xmm0, 0b00000000);
e.vptest(e.xmm0, i.src2);
e.jnc(emu);
e.vpxor(e.xmm1, e.xmm0, i.src2);
e.vptest(e.xmm1, e.xmm1);
e.jnz(emu);
// Equal. Shift using vpsrlw.
e.mov(e.rax, 0xF);
@ -5799,8 +5802,9 @@ struct VECTOR_SHR_V128
// Only bother with this check if shift amt isn't constant.
if (!i.src2.is_constant) {
e.vpshufd(e.xmm0, i.src2, 0b00000000);
e.vptest(e.xmm0, i.src2);
e.jnc(emu);
e.vpxor(e.xmm1, e.xmm0, i.src2);
e.vptest(e.xmm1, e.xmm1);
e.jnz(emu);
// Equal. Shift using vpsrld.
e.mov(e.rax, 0x1F);
@ -5893,8 +5897,9 @@ struct VECTOR_SHA_V128
if (!i.src2.is_constant) {
e.vpshuflw(e.xmm0, i.src2, 0b00000000);
e.vpshufd(e.xmm0, e.xmm0, 0b00000000);
e.vptest(e.xmm0, i.src2);
e.jnc(emu);
e.vpxor(e.xmm1, e.xmm0, i.src2);
e.vptest(e.xmm1, e.xmm1);
e.jnz(emu);
// Equal. Shift using vpsraw.
e.mov(e.rax, 0xF);
@ -5965,8 +5970,9 @@ struct VECTOR_SHA_V128
// Only bother with this check if shift amt isn't constant.
if (!i.src2.is_constant) {
e.vpshufd(e.xmm0, i.src2, 0b00000000);
e.vptest(e.xmm0, i.src2);
e.jnc(emu);
e.vpxor(e.xmm1, e.xmm0, i.src2);
e.vptest(e.xmm1, e.xmm1);
e.jnz(emu);
// Equal. Shift using vpsrad.
e.mov(e.rax, 0x1F);