From: Kong Lingling <lingling.k...@intel.com>
gcc/ChangeLog:
* config/i386/i386-expand.cc (ix86_can_use_ndd_p): Add NEG
support.
(ix86_expand_unary_operator): Add use_ndd parameter and adjust for NDD.
* config/i386/i386-protos.h : Add use_ndd parameter for
ix86_unary_operator_ok and ix86_expand_unary_operator.
* config/i386/i386.cc (ix86_unary_operator_ok): Add ndd constraints,
and add use_ndd parameter.
* config/i386/i386.md (neg<mode>2): Add ndd constraints.
(*neg<mode>_1): Likewise.
(*neg<dwi>2_doubleword): Likewise.
(*negsi_1_zext): Likewise.
(*neg<mode>_2): Likewise.
(*negsi_2_zext): Likewise.
(*neg<mode>_ccc_1): Likewise.
(*neg<mode>_ccc_2): Likewise.
gcc/testsuite/ChangeLog:
* gcc.target/i386/apx-ndd.c: Add neg test.
---
gcc/config/i386/i386-expand.cc | 5 +-
gcc/config/i386/i386-protos.h | 5 +-
gcc/config/i386/i386.cc | 5 +-
gcc/config/i386/i386.md | 79 ++++++++++++++++---------
gcc/testsuite/gcc.target/i386/apx-ndd.c | 29 +++++++++
5 files changed, 90 insertions(+), 33 deletions(-)
diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc
index e5f75875e3b..995cc792c5f 100644
--- a/gcc/config/i386/i386-expand.cc
+++ b/gcc/config/i386/i386-expand.cc
@@ -1271,6 +1271,7 @@ bool ix86_can_use_ndd_p (enum rtx_code code)
{
case PLUS:
case MINUS:
+ case NEG:
return true;
default:
return false;
@@ -1511,7 +1512,7 @@ ix86_binary_operator_ok (enum rtx_code code, machine_mode
mode,
void
ix86_expand_unary_operator (enum rtx_code code, machine_mode mode,
- rtx operands[])
+ rtx operands[], bool use_ndd)
{
bool matching_memory = false;
rtx src, dst, op, clob;
@@ -1530,7 +1531,7 @@ ix86_expand_unary_operator (enum rtx_code code,
machine_mode mode,
}
/* When source operand is memory, destination must match. */
- if (MEM_P (src) && !matching_memory)
+ if (!use_ndd && MEM_P (src) && !matching_memory)
src = force_reg (mode, src);
/* Emit the instruction. */
diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h
index ad895fac72d..0010fd71011 100644
--- a/gcc/config/i386/i386-protos.h
+++ b/gcc/config/i386/i386-protos.h
@@ -128,7 +128,7 @@ extern bool ix86_vec_interleave_v2df_operator_ok (rtx
operands[3], bool high);
extern bool ix86_dep_by_shift_count (const_rtx set_insn, const_rtx use_insn);
extern bool ix86_agi_dependent (rtx_insn *set_insn, rtx_insn *use_insn);
extern void ix86_expand_unary_operator (enum rtx_code, machine_mode,
- rtx[]);
+ rtx[], bool = false);
extern rtx ix86_build_const_vector (machine_mode, bool, rtx);
extern rtx ix86_build_signbit_mask (machine_mode, bool, bool);
extern HOST_WIDE_INT ix86_convert_const_vector_to_integer (rtx,
@@ -148,7 +148,8 @@ extern void ix86_split_fp_absneg_operator (enum rtx_code,
machine_mode,
rtx[]);
extern void ix86_expand_copysign (rtx []);
extern void ix86_expand_xorsign (rtx []);
-extern bool ix86_unary_operator_ok (enum rtx_code, machine_mode, rtx[2]);
+extern bool ix86_unary_operator_ok (enum rtx_code, machine_mode, rtx[2],
+ bool = false);
extern bool ix86_match_ccmode (rtx, machine_mode);
extern bool ix86_match_ptest_ccmode (rtx);
extern void ix86_expand_branch (enum rtx_code, rtx, rtx, rtx);
diff --git a/gcc/config/i386/i386.cc b/gcc/config/i386/i386.cc
index 47159b06f7d..9b0715943f7 100644
--- a/gcc/config/i386/i386.cc
+++ b/gcc/config/i386/i386.cc
@@ -16160,11 +16160,12 @@ ix86_dep_by_shift_count (const_rtx set_insn,
const_rtx use_insn)
bool
ix86_unary_operator_ok (enum rtx_code,
machine_mode,
- rtx operands[2])
+ rtx operands[2],
+ bool use_ndd)
{
/* If one of operands is memory, source and destination must match. */
if ((MEM_P (operands[0])
- || MEM_P (operands[1]))
+ || (!use_ndd && MEM_P (operands[1])))
&& ! rtx_equal_p (operands[0], operands[1]))
return false;
return true;
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index c3dcfaf52e1..8ba524e9e44 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -12952,13 +12952,15 @@ (define_expand "neg<mode>2"
[(set (match_operand:SDWIM 0 "nonimmediate_operand")
(neg:SDWIM (match_operand:SDWIM 1 "nonimmediate_operand")))]
""
- "ix86_expand_unary_operator (NEG, <MODE>mode, operands); DONE;")
+ "ix86_expand_unary_operator (NEG, <MODE>mode, operands,
+ ix86_can_use_ndd_p (NEG)); DONE;")
(define_insn_and_split "*neg<dwi>2_doubleword"
- [(set (match_operand:<DWI> 0 "nonimmediate_operand" "=ro")
- (neg:<DWI> (match_operand:<DWI> 1 "nonimmediate_operand" "0")))
+ [(set (match_operand:<DWI> 0 "nonimmediate_operand" "=ro,r")
+ (neg:<DWI> (match_operand:<DWI> 1 "nonimmediate_operand" "0,ro")))
(clobber (reg:CC FLAGS_REG))]
- "ix86_unary_operator_ok (NEG, <DWI>mode, operands)"
+ "ix86_unary_operator_ok (NEG, <DWI>mode, operands,
+ ix86_can_use_ndd_p (NEG))"
"#"
"&& reload_completed"
[(parallel
@@ -12975,7 +12977,8 @@ (define_insn_and_split "*neg<dwi>2_doubleword"
[(set (match_dup 2)
(neg:DWIH (match_dup 2)))
(clobber (reg:CC FLAGS_REG))])]
- "split_double_mode (<DWI>mode, &operands[0], 2, &operands[0],
&operands[2]);")
+ "split_double_mode (<DWI>mode, &operands[0], 2, &operands[0], &operands[2]);"
+ [(set_attr "isa" "*,apx_ndd")])
;; Convert:
;; mov %esi, %edx
@@ -13064,22 +13067,30 @@ (define_peephole2
(clobber (reg:CC FLAGS_REG))])])
(define_insn "*neg<mode>_1"
- [(set (match_operand:SWI 0 "nonimmediate_operand" "=<r>m")
- (neg:SWI (match_operand:SWI 1 "nonimmediate_operand" "0")))
+ [(set (match_operand:SWI 0 "nonimmediate_operand" "=<r>m,r")
+ (neg:SWI (match_operand:SWI 1 "nonimmediate_operand" "0,rm")))
(clobber (reg:CC FLAGS_REG))]
- "ix86_unary_operator_ok (NEG, <MODE>mode, operands)"
- "neg{<imodesuffix>}\t%0"
+ "ix86_unary_operator_ok (NEG, <MODE>mode, operands,
+ ix86_can_use_ndd_p (NEG))"
+ "@
+ neg{<imodesuffix>}\t%0
+ neg{<imodesuffix>}\t{%1, %0|%0, %1}"
[(set_attr "type" "negnot")
+ (set_attr "isa" "*,apx_ndd")
(set_attr "mode" "<MODE>")])
(define_insn "*negsi_1_zext"
- [(set (match_operand:DI 0 "register_operand" "=r")
+ [(set (match_operand:DI 0 "register_operand" "=r,r")
(zero_extend:DI
- (neg:SI (match_operand:SI 1 "register_operand" "0"))))
+ (neg:SI (match_operand:SI 1 "register_operand" "0,r"))))
(clobber (reg:CC FLAGS_REG))]
- "TARGET_64BIT && ix86_unary_operator_ok (NEG, SImode, operands)"
- "neg{l}\t%k0"
+ "TARGET_64BIT && ix86_unary_operator_ok (NEG, SImode, operands,
+ ix86_can_use_ndd_p (NEG))"
+ "@
+ neg{l}\t%k0
+ neg{l}\t{%k1, %k0|%k0, %k1}"
[(set_attr "type" "negnot")
+ (set_attr "isa" "*,apx_ndd")
(set_attr "mode" "SI")])
;; Alternative 1 is needed to work around LRA limitation, see PR82524.
@@ -13105,51 +13116,65 @@ (define_insn_and_split "*neg<mode>_1_slp"
(define_insn "*neg<mode>_2"
[(set (reg FLAGS_REG)
(compare
- (neg:SWI (match_operand:SWI 1 "nonimmediate_operand" "0"))
+ (neg:SWI (match_operand:SWI 1 "nonimmediate_operand" "0,rm"))
(const_int 0)))
- (set (match_operand:SWI 0 "nonimmediate_operand" "=<r>m")
+ (set (match_operand:SWI 0 "nonimmediate_operand" "=<r>m,r")
(neg:SWI (match_dup 1)))]
"ix86_match_ccmode (insn, CCGOCmode)
- && ix86_unary_operator_ok (NEG, <MODE>mode, operands)"
- "neg{<imodesuffix>}\t%0"
+ && ix86_unary_operator_ok (NEG, <MODE>mode, operands,
+ ix86_can_use_ndd_p (NEG))"
+ "@
+ neg{<imodesuffix>}\t%0
+ neg{<imodesuffix>}\t{%1, %0|%0, %1}"
[(set_attr "type" "negnot")
+ (set_attr "isa" "*,apx_ndd")
(set_attr "mode" "<MODE>")])
(define_insn "*negsi_2_zext"
[(set (reg FLAGS_REG)
(compare
- (neg:SI (match_operand:SI 1 "register_operand" "0"))
+ (neg:SI (match_operand:SI 1 "register_operand" "0,r"))
(const_int 0)))
- (set (match_operand:DI 0 "register_operand" "=r")
+ (set (match_operand:DI 0 "register_operand" "=r,r")
(zero_extend:DI
(neg:SI (match_dup 1))))]
"TARGET_64BIT && ix86_match_ccmode (insn, CCGOCmode)
- && ix86_unary_operator_ok (NEG, SImode, operands)"
- "neg{l}\t%k0"
+ && ix86_unary_operator_ok (NEG, SImode, operands,
+ ix86_can_use_ndd_p (NEG))"
+ "@
+ neg{l}\t%k0
+ neg{l}\t{%k1, %k0|%k0, %k1}"
[(set_attr "type" "negnot")
+ (set_attr "isa" "*,apx_ndd")
(set_attr "mode" "SI")])
(define_insn "*neg<mode>_ccc_1"
[(set (reg:CCC FLAGS_REG)
(unspec:CCC
- [(match_operand:SWI 1 "nonimmediate_operand" "0")
+ [(match_operand:SWI 1 "nonimmediate_operand" "0,rm")
(const_int 0)] UNSPEC_CC_NE))
- (set (match_operand:SWI 0 "nonimmediate_operand" "=<r>m")
+ (set (match_operand:SWI 0 "nonimmediate_operand" "=<r>m,r")
(neg:SWI (match_dup 1)))]
""
- "neg{<imodesuffix>}\t%0"
+ "@
+ neg{<imodesuffix>}\t%0
+ neg{<imodesuffix>}\t{%1, %0|%0, %1}"
[(set_attr "type" "negnot")
+ (set_attr "isa" "*,apx_ndd")
(set_attr "mode" "<MODE>")])
(define_insn "*neg<mode>_ccc_2"
[(set (reg:CCC FLAGS_REG)
(unspec:CCC
- [(match_operand:SWI 1 "nonimmediate_operand" "0")
+ [(match_operand:SWI 1 "nonimmediate_operand" "0,r")
(const_int 0)] UNSPEC_CC_NE))
- (clobber (match_scratch:SWI 0 "=<r>"))]
+ (clobber (match_scratch:SWI 0 "=<r>,r"))]
""
- "neg{<imodesuffix>}\t%0"
+ "@
+ neg{<imodesuffix>}\t%0
+ neg{<imodesuffix>}\t{%1, %0|%0, %1}"
[(set_attr "type" "negnot")
+ (set_attr "isa" "*,apx_ndd")
(set_attr "mode" "<MODE>")])
(define_expand "x86_neg<mode>_ccc"
diff --git a/gcc/testsuite/gcc.target/i386/apx-ndd.c
b/gcc/testsuite/gcc.target/i386/apx-ndd.c
index 9d444e0d830..18b423258ea 100644
--- a/gcc/testsuite/gcc.target/i386/apx-ndd.c
+++ b/gcc/testsuite/gcc.target/i386/apx-ndd.c
@@ -27,8 +27,25 @@ foo2_##OP_NAME##_##TYPE (TYPE *a, TYPE b) \
{ \
TYPE c = *a OP b; \
return c; \
+}
+
+#define F(TYPE, OP_NAME, OP) \
+TYPE \
+__attribute__ ((noipa)) \
+f_##OP_NAME##_##TYPE (TYPE *a) \
+{ \
+ TYPE b = OP*a; \
+ return b; \
}
+#define F1(TYPE, OP_NAME, OP) \
+TYPE \
+__attribute__ ((noipa)) \
+f1_##OP_NAME##_##TYPE (TYPE a) \
+{ \
+ TYPE b = OP a; \
+ return b; \
+}
FOO (char, add, +)
FOO1 (char, add, +)
FOO2 (char, add, +)
@@ -50,8 +67,20 @@ FOO (int, sub, -)
FOO1 (int, sub, -)
FOO (long, sub, -)
FOO1 (long, sub, -)
+
+F (char, neg, -)
+F1 (char, neg, -)
+F (short, neg, -)
+F1 (short, neg, -)
+F (int, neg, -)
+F1 (int, neg, -)
+F (long, neg, -)
+F1 (long, neg, -)
/* { dg-final { scan-assembler-times "add(?:l|w|q)\[^\n\r]*1, \\(%rdi\\),
%(?:|r|e)ax" 4 } } */
/* { dg-final { scan-assembler-times
"lea(?:l|q)\[^\n\r]\\(%r(?:d|s)i,%r(?:d|s)i\\), %(?:|r|e)ax" 4 } } */
/* { dg-final { scan-assembler-times "add(?:l|w|q)\[^\n\r]%(?:|r|e)si,
\\(%rdi\\), %(?:|r|e)ax" 4 } } */
/* { dg-final { scan-assembler-times "sub(?:l|w|q)\[^\n\r]*1, \\(%rdi\\),
%(?:|r|e)ax" 4 } } */
/* { dg-final { scan-assembler-times "sub(?:l|w|q)\[^\n\r]%(?:|r|e)si,
%(?:|r|e)di, %(?:|r|e)ax" 4 } } */
+/* { dg-final { scan-assembler-times "negb\[^\n\r]\\(%rdi\\), %(?:|r|e)al" 1 }
} */
+/* { dg-final { scan-assembler-times "neg(?:l|w|q)\[^\n\r]\\(%rdi\\),
%(?:|r|e)ax" 3 } } */
+/* { dg-final { scan-assembler-times "neg(?:l|w|q)\[^\n\r]%(?:|r|e)di,
%(?:|r|e)ax" 4 } } */
--
2.31.1
