[PATCH 39/46] i386: Allow MMX vector expanders with SSE
H.J. Lu
hjl.tools@gmail.com
Fri Feb 1 21:18:00 GMT 2019
In 64-bit mode, allow MMX vector expanders with SSE when MMX is disabled.
PR target/89021
* config/i386/i386.c (ix86_expand_vector_init_duplicate): Set
mmx_ok to true if TARGET_MMX_WITH_SSE is true.
(ix86_expand_vector_init_one_nonzero): Likewise.
(ix86_expand_vector_init_one_var): Likewise.
(ix86_expand_vector_init_general): Likewise.
(ix86_expand_vector_init): Likewise.
(ix86_expand_vector_set): Likewise.
(ix86_expand_vector_extract): Likewise.
* config/i386/mmx.md (*vec_dupv2sf): Changed to
define_insn_and_split to support SSE emulation.
(vec_setv2sf): Check TARGET_MMX_INSNS instead of TARGET_MMX.
(*vec_extractv2sf_0): Likewise.
(*vec_extractv2sf_1): Likewise.
(vec_extractv2sf_1 splitter): Likewise.
(vec_extractv2sfsf): Likewise.
(vec_setv2si): Likewise.
(*vec_extractv2si_0): Likewise.
(*vec_extractv2si_1): Likewise.
(vec_extractv2si_1 splitter): Likewise.
(*vec_extractv2si_zext_mem): Likewise.
(vec_extractv2sisi): Likewise.
(vec_setv4hi): Likewise.
(vec_extractv4hihi): Likewise.
(vec_setv8qi): Likewise.
(vec_extractv8qiqi): Likewise.
---
gcc/config/i386/i386.c | 8 +++++++
gcc/config/i386/mmx.md | 52 +++++++++++++++++++++++++-----------------
2 files changed, 39 insertions(+), 21 deletions(-)
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index d795af1dd93..d8bd018b800 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -42361,6 +42361,7 @@ ix86_expand_vector_init_duplicate (bool mmx_ok, machine_mode mode,
{
bool ok;
+ mmx_ok |= TARGET_MMX_WITH_SSE;
switch (mode)
{
case E_V2SImode:
@@ -42520,6 +42521,7 @@ ix86_expand_vector_init_one_nonzero (bool mmx_ok, machine_mode mode,
bool use_vector_set = false;
rtx (*gen_vec_set_0) (rtx, rtx, rtx) = NULL;
+ mmx_ok |= TARGET_MMX_WITH_SSE;
switch (mode)
{
case E_V2DImode:
@@ -42713,6 +42715,7 @@ ix86_expand_vector_init_one_var (bool mmx_ok, machine_mode mode,
XVECEXP (const_vec, 0, one_var) = CONST0_RTX (GET_MODE_INNER (mode));
const_vec = gen_rtx_CONST_VECTOR (mode, XVEC (const_vec, 0));
+ mmx_ok |= TARGET_MMX_WITH_SSE;
switch (mode)
{
case E_V2DFmode:
@@ -43098,6 +43101,7 @@ ix86_expand_vector_init_general (bool mmx_ok, machine_mode mode,
machine_mode quarter_mode = VOIDmode;
int n, i;
+ mmx_ok |= TARGET_MMX_WITH_SSE;
switch (mode)
{
case E_V2SFmode:
@@ -43297,6 +43301,8 @@ ix86_expand_vector_init (bool mmx_ok, rtx target, rtx vals)
int i;
rtx x;
+ mmx_ok |= TARGET_MMX_WITH_SSE;
+
/* Handle first initialization from vector elts. */
if (n_elts != XVECLEN (vals, 0))
{
@@ -43396,6 +43402,7 @@ ix86_expand_vector_set (bool mmx_ok, rtx target, rtx val, int elt)
machine_mode mmode = VOIDmode;
rtx (*gen_blendm) (rtx, rtx, rtx, rtx);
+ mmx_ok |= TARGET_MMX_WITH_SSE;
switch (mode)
{
case E_V2SFmode:
@@ -43751,6 +43758,7 @@ ix86_expand_vector_extract (bool mmx_ok, rtx target, rtx vec, int elt)
bool use_vec_extr = false;
rtx tmp;
+ mmx_ok |= TARGET_MMX_WITH_SSE;
switch (mode)
{
case E_V2SImode:
diff --git a/gcc/config/i386/mmx.md b/gcc/config/i386/mmx.md
index d269e85d332..ba81b48e515 100644
--- a/gcc/config/i386/mmx.md
+++ b/gcc/config/i386/mmx.md
@@ -595,14 +595,24 @@
(set_attr "prefix_extra" "1")
(set_attr "mode" "V2SF")])
-(define_insn "*vec_dupv2sf"
- [(set (match_operand:V2SF 0 "register_operand" "=y")
+(define_insn_and_split "*vec_dupv2sf"
+ [(set (match_operand:V2SF 0 "register_operand" "=y,Yx,Yy")
(vec_duplicate:V2SF
- (match_operand:SF 1 "register_operand" "0")))]
- "TARGET_MMX"
+ (match_operand:SF 1 "register_operand" "0,0,Yy")))]
+ "TARGET_MMX_INSNS"
"punpckldq\t%0, %0"
- [(set_attr "type" "mmxcvt")
- (set_attr "mode" "DI")])
+ "&& reload_completed && TARGET_MMX_WITH_SSE"
+ [(const_int 0)]
+{
+ /* Emulate MMX vec_dupv2sf with SSE vec_dupv4sf. */
+ rtx op0 = gen_rtx_REG (V4SFmode, REGNO (operands[0]));
+ rtx insn = gen_vec_dupv4sf (op0, operands[1]);
+ emit_insn (insn);
+ DONE;
+}
+ [(set_attr "isa" "*,noavx,avx")
+ (set_attr "type" "mmxcvt,ssemov,ssemov")
+ (set_attr "mode" "DI,TI,TI")])
(define_insn "*mmx_concatv2sf"
[(set (match_operand:V2SF 0 "register_operand" "=y,y")
@@ -620,7 +630,7 @@
[(match_operand:V2SF 0 "register_operand")
(match_operand:SF 1 "register_operand")
(match_operand 2 "const_int_operand")]
- "TARGET_MMX"
+ "TARGET_MMX_INSNS"
{
ix86_expand_vector_set (false, operands[0], operands[1],
INTVAL (operands[2]));
@@ -634,7 +644,7 @@
(vec_select:SF
(match_operand:V2SF 1 "nonimmediate_operand" " xm,x,ym,y,m,m")
(parallel [(const_int 0)])))]
- "TARGET_MMX && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
+ "TARGET_MMX_INSNS && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
"#"
"&& reload_completed"
[(set (match_dup 0) (match_dup 1))]
@@ -647,7 +657,7 @@
(vec_select:SF
(match_operand:V2SF 1 "nonimmediate_operand" " 0,x,x,o,o,o,o")
(parallel [(const_int 1)])))]
- "TARGET_MMX && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
+ "TARGET_MMX_INSNS && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
"@
punpckhdq\t%0, %0
%vmovshdup\t{%1, %0|%0, %1}
@@ -674,7 +684,7 @@
(vec_select:SF
(match_operand:V2SF 1 "memory_operand")
(parallel [(const_int 1)])))]
- "TARGET_MMX && reload_completed"
+ "TARGET_MMX_INSNS && reload_completed"
[(set (match_dup 0) (match_dup 1))]
"operands[1] = adjust_address (operands[1], SFmode, 4);")
@@ -682,7 +692,7 @@
[(match_operand:SF 0 "register_operand")
(match_operand:V2SF 1 "register_operand")
(match_operand 2 "const_int_operand")]
- "TARGET_MMX"
+ "TARGET_MMX_INSNS"
{
ix86_expand_vector_extract (false, operands[0], operands[1],
INTVAL (operands[2]));
@@ -1486,7 +1496,7 @@
[(match_operand:V2SI 0 "register_operand")
(match_operand:SI 1 "register_operand")
(match_operand 2 "const_int_operand")]
- "TARGET_MMX"
+ "TARGET_MMX_INSNS"
{
ix86_expand_vector_set (false, operands[0], operands[1],
INTVAL (operands[2]));
@@ -1500,7 +1510,7 @@
(vec_select:SI
(match_operand:V2SI 1 "nonimmediate_operand" "xm,x,ym,y,m")
(parallel [(const_int 0)])))]
- "TARGET_MMX && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
+ "TARGET_MMX_INSNS && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
"#"
"&& reload_completed"
[(set (match_dup 0) (match_dup 1))]
@@ -1513,7 +1523,7 @@
(vec_select:SI
(match_operand:V2SI 1 "nonimmediate_operand" " 0,x,x,o,o,o")
(parallel [(const_int 1)])))]
- "TARGET_MMX && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
+ "TARGET_MMX_INSNS && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
"@
punpckhdq\t%0, %0
%vpshufd\t{$0xe5, %1, %0|%0, %1, 0xe5}
@@ -1535,7 +1545,7 @@
(vec_select:SI
(match_operand:V2SI 1 "memory_operand")
(parallel [(const_int 1)])))]
- "TARGET_MMX && reload_completed"
+ "TARGET_MMX_INSNS && reload_completed"
[(set (match_dup 0) (match_dup 1))]
"operands[1] = adjust_address (operands[1], SImode, 4);")
@@ -1545,7 +1555,7 @@
(vec_select:SI
(match_operand:V2SI 1 "memory_operand" "o,o,o")
(parallel [(match_operand:SI 2 "const_0_to_1_operand")]))))]
- "TARGET_64BIT && TARGET_MMX"
+ "TARGET_64BIT && TARGET_MMX_INSNS"
"#"
"&& reload_completed"
[(set (match_dup 0) (zero_extend:DI (match_dup 1)))]
@@ -1557,7 +1567,7 @@
[(match_operand:SI 0 "register_operand")
(match_operand:V2SI 1 "register_operand")
(match_operand 2 "const_int_operand")]
- "TARGET_MMX"
+ "TARGET_MMX_INSNS"
{
ix86_expand_vector_extract (false, operands[0], operands[1],
INTVAL (operands[2]));
@@ -1577,7 +1587,7 @@
[(match_operand:V4HI 0 "register_operand")
(match_operand:HI 1 "register_operand")
(match_operand 2 "const_int_operand")]
- "TARGET_MMX"
+ "TARGET_MMX_INSNS"
{
ix86_expand_vector_set (false, operands[0], operands[1],
INTVAL (operands[2]));
@@ -1588,7 +1598,7 @@
[(match_operand:HI 0 "register_operand")
(match_operand:V4HI 1 "register_operand")
(match_operand 2 "const_int_operand")]
- "TARGET_MMX"
+ "TARGET_MMX_INSNS"
{
ix86_expand_vector_extract (false, operands[0], operands[1],
INTVAL (operands[2]));
@@ -1608,7 +1618,7 @@
[(match_operand:V8QI 0 "register_operand")
(match_operand:QI 1 "register_operand")
(match_operand 2 "const_int_operand")]
- "TARGET_MMX"
+ "TARGET_MMX_INSNS"
{
ix86_expand_vector_set (false, operands[0], operands[1],
INTVAL (operands[2]));
@@ -1619,7 +1629,7 @@
[(match_operand:QI 0 "register_operand")
(match_operand:V8QI 1 "register_operand")
(match_operand 2 "const_int_operand")]
- "TARGET_MMX"
+ "TARGET_MMX_INSNS"
{
ix86_expand_vector_extract (false, operands[0], operands[1],
INTVAL (operands[2]));
--
2.20.1
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