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riscv-gcc-1
Commit deb1f617 by Uros Bizjak
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re PR target/49920 (unable to find a register to spill in class ‘DIREG’) 

	PR target/49920
	* config/i386/i386.md (strset): Do not expand strset_singleop
	when %eax or $edi are fixed.
	(*strsetdi_rex_1): Disable when %eax or %edi are fixed.
	(*strsetsi_1): Ditto.
	(*strsethi_1): Ditto.
	(*strsetqi_1): Ditto.
	(*rep_stosdi_rex64): Disable when %eax, %ecx or %edi are fixed.
	(*rep_stossi): Ditto.
	(*rep_stosqi): Ditto.
	(cmpstrnsi): Also fail when %ecx is fixed.
	(*cmpstrnqi_nz_1): Disable when %ecx, %esi or %edi are fixed.
	(*cmpstrnqi_1): Ditto.
	(*strlenqi_1): Ditto.
	(*strmovdi_rex_1): Disable when %esi or %edi are fixed.
	(*strmovsi_1): Ditto.
	(*strmovhi_1): Ditto.
	(*strmovqi_1): Ditto.
	(*rep_movdi_rex64): Disable when %ecx, %esi or %edi are fixed.
	(*rep_movsi): Ditto.
	(*rep_movqi): Ditto.

testsuite/ChangeLog:

	PR target/49920
	* gcc.target/i386/pr49920.c: New test.

From-SVN: r176979
parent ba4a11ba
Showing with 79 additions and 22 deletions
gcc/ChangeLog
2011-07-31 Uros Bizjak <ubizjak@gmail.com>
PR target/49920
* config/i386/i386.md (strset): Do not expand strset_singleop
when %eax or $edi are fixed.
(*strsetdi_rex_1): Disable when %eax or %edi are fixed.
(*strsetsi_1): Ditto.
(*strsethi_1): Ditto.
(*strsetqi_1): Ditto.
(*rep_stosdi_rex64): Disable when %eax, %ecx or %edi are fixed.
(*rep_stossi): Ditto.
(*rep_stosqi): Ditto.
(cmpstrnsi): Also fail when %ecx is fixed.
(*cmpstrnqi_nz_1): Disable when %ecx, %esi or %edi are fixed.
(*cmpstrnqi_1): Ditto.
(*strlenqi_1): Ditto.
(*strmovdi_rex_1): Disable when %esi or %edi are fixed.
(*strmovsi_1): Ditto.
(*strmovhi_1): Ditto.
(*strmovqi_1): Ditto.
(*rep_movdi_rex64): Disable when %ecx, %esi or %edi are fixed.
(*rep_movsi): Ditto.
(*rep_movqi): Ditto.
2011-07-31 Mikael Pettersson <mikpe@it.uu.se>
PR target/47908
......@@ -40,8 +64,7 @@
Use scaninvent instead of /proc/cpuinfo if __sgi__.
* config.host: Also use driver-native.o, mips/x-native on
mips-sgi-irix*.
* config/mips/iris6.h [__mips__] (host_detect_local_cpu):
Declare.
* config/mips/iris6.h [__mips__] (host_detect_local_cpu): Declare.
(EXTRA_SPEC_FUNCTIONS, MARCH_MTUNE_NATIVE_SPECS): Define.
(DRIVER_SELF_SPECS): Add MARCH_MTUNE_NATIVE_SPECS.
......
gcc/config/i386/i386.md
......@@ -15421,7 +15421,8 @@
(set (match_operand:DI 1 "register_operand" "=S")
(plus:DI (match_dup 3)
(const_int 8)))]
"TARGET_64BIT"
"TARGET_64BIT
&& !(fixed_regs[SI_REG] || fixed_regs[DI_REG])"
"movsq"
[(set_attr "type" "str")
(set_attr "memory" "both")
......@@ -15436,7 +15437,7 @@
(set (match_operand:P 1 "register_operand" "=S")
(plus:P (match_dup 3)
(const_int 4)))]
""
"!(fixed_regs[SI_REG] || fixed_regs[DI_REG])"
"movs{l|d}"
[(set_attr "type" "str")
(set_attr "memory" "both")
......@@ -15451,7 +15452,7 @@
(set (match_operand:P 1 "register_operand" "=S")
(plus:P (match_dup 3)
(const_int 2)))]
""
"!(fixed_regs[SI_REG] || fixed_regs[DI_REG])"
"movsw"
[(set_attr "type" "str")
(set_attr "memory" "both")
......@@ -15466,7 +15467,7 @@
(set (match_operand:P 1 "register_operand" "=S")
(plus:P (match_dup 3)
(const_int 1)))]
""
"!(fixed_regs[SI_REG] || fixed_regs[DI_REG])"
"movsb"
[(set_attr "type" "str")
(set_attr "memory" "both")
......@@ -15501,7 +15502,8 @@
(set (mem:BLK (match_dup 3))
(mem:BLK (match_dup 4)))
(use (match_dup 5))]
"TARGET_64BIT"
"TARGET_64BIT
&& !(fixed_regs[CX_REG] || fixed_regs[SI_REG] || fixed_regs[DI_REG])"
"rep{%;} movsq"
[(set_attr "type" "str")
(set_attr "prefix_rep" "1")
......@@ -15520,7 +15522,7 @@
(set (mem:BLK (match_dup 3))
(mem:BLK (match_dup 4)))
(use (match_dup 5))]
""
"!(fixed_regs[CX_REG] || fixed_regs[SI_REG] || fixed_regs[DI_REG])"
"rep{%;} movs{l|d}"
[(set_attr "type" "str")
(set_attr "prefix_rep" "1")
......@@ -15537,7 +15539,7 @@
(set (mem:BLK (match_dup 3))
(mem:BLK (match_dup 4)))
(use (match_dup 5))]
""
"!(fixed_regs[CX_REG] || fixed_regs[SI_REG] || fixed_regs[DI_REG])"
"rep{%;} movsb"
[(set_attr "type" "str")
(set_attr "prefix_rep" "1")
......@@ -15580,7 +15582,9 @@
operands[3] = gen_rtx_PLUS (Pmode, operands[0],
GEN_INT (GET_MODE_SIZE (GET_MODE
(operands[2]))));
if (TARGET_SINGLE_STRINGOP || optimize_insn_for_size_p ())
/* Can't use this if the user has appropriated eax or edi. */
if ((TARGET_SINGLE_STRINGOP || optimize_insn_for_size_p ())
&& !(fixed_regs[AX_REG] || fixed_regs[DI_REG]))
{
emit_insn (gen_strset_singleop (operands[0], operands[1], operands[2],
operands[3]));
......@@ -15602,7 +15606,8 @@
(set (match_operand:DI 0 "register_operand" "=D")
(plus:DI (match_dup 1)
(const_int 8)))]
"TARGET_64BIT"
"TARGET_64BIT
&& !(fixed_regs[AX_REG] || fixed_regs[DI_REG])"
"stosq"
[(set_attr "type" "str")
(set_attr "memory" "store")
......@@ -15614,7 +15619,7 @@
(set (match_operand:P 0 "register_operand" "=D")
(plus:P (match_dup 1)
(const_int 4)))]
""
"!(fixed_regs[AX_REG] || fixed_regs[DI_REG])"
"stos{l|d}"
[(set_attr "type" "str")
(set_attr "memory" "store")
......@@ -15626,7 +15631,7 @@
(set (match_operand:P 0 "register_operand" "=D")
(plus:P (match_dup 1)
(const_int 2)))]
""
"!(fixed_regs[AX_REG] || fixed_regs[DI_REG])"
"stosw"
[(set_attr "type" "str")
(set_attr "memory" "store")
......@@ -15638,7 +15643,7 @@
(set (match_operand:P 0 "register_operand" "=D")
(plus:P (match_dup 1)
(const_int 1)))]
""
"!(fixed_regs[AX_REG] || fixed_regs[DI_REG])"
"stosb"
[(set_attr "type" "str")
(set_attr "memory" "store")
......@@ -15669,7 +15674,8 @@
(const_int 0))
(use (match_operand:DI 2 "register_operand" "a"))
(use (match_dup 4))]
"TARGET_64BIT"
"TARGET_64BIT
&& !(fixed_regs[AX_REG] || fixed_regs[CX_REG] || fixed_regs[DI_REG])"
"rep{%;} stosq"
[(set_attr "type" "str")
(set_attr "prefix_rep" "1")
......@@ -15686,7 +15692,7 @@
(const_int 0))
(use (match_operand:SI 2 "register_operand" "a"))
(use (match_dup 4))]
""
"!(fixed_regs[AX_REG] || fixed_regs[CX_REG] || fixed_regs[DI_REG])"
"rep{%;} stos{l|d}"
[(set_attr "type" "str")
(set_attr "prefix_rep" "1")
......@@ -15702,7 +15708,7 @@
(const_int 0))
(use (match_operand:QI 2 "register_operand" "a"))
(use (match_dup 4))]
""
"!(fixed_regs[AX_REG] || fixed_regs[CX_REG] || fixed_regs[DI_REG])"
"rep{%;} stosb"
[(set_attr "type" "str")
(set_attr "prefix_rep" "1")
......@@ -15727,8 +15733,8 @@
if (optimize_insn_for_size_p () && !TARGET_INLINE_ALL_STRINGOPS)
FAIL;
/* Can't use this if the user has appropriated esi or edi. */
if (fixed_regs[SI_REG] || fixed_regs[DI_REG])
/* Can't use this if the user has appropriated ecx, esi or edi. */
if (fixed_regs[CX_REG] || fixed_regs[SI_REG] || fixed_regs[DI_REG])
FAIL;
out = operands[0];
......@@ -15823,7 +15829,7 @@
(clobber (match_operand:P 0 "register_operand" "=S"))
(clobber (match_operand:P 1 "register_operand" "=D"))
(clobber (match_operand:P 2 "register_operand" "=c"))]
""
"!(fixed_regs[CX_REG] || fixed_regs[SI_REG] || fixed_regs[DI_REG])"
"repz{%;} cmpsb"
[(set_attr "type" "str")
(set_attr "mode" "QI")
......@@ -15863,7 +15869,7 @@
(clobber (match_operand:P 0 "register_operand" "=S"))
(clobber (match_operand:P 1 "register_operand" "=D"))
(clobber (match_operand:P 2 "register_operand" "=c"))]
""
"!(fixed_regs[CX_REG] || fixed_regs[SI_REG] || fixed_regs[DI_REG])"
"repz{%;} cmpsb"
[(set_attr "type" "str")
(set_attr "mode" "QI")
......@@ -15904,7 +15910,7 @@
(match_operand:P 4 "register_operand" "0")] UNSPEC_SCAS))
(clobber (match_operand:P 1 "register_operand" "=D"))
(clobber (reg:CC FLAGS_REG))]
""
"!(fixed_regs[AX_REG] || fixed_regs[CX_REG] || fixed_regs[DI_REG])"
"repnz{%;} scasb"
[(set_attr "type" "str")
(set_attr "mode" "QI")
......
gcc/testsuite/ChangeLog
2011-07-31 Uros Bizjak <ubizjak@gmail.com>
PR target/49920
* gcc.target/i386/pr49920.c: New test.
2011-07-31 Uros Bizjak <ubizjak@gmail.com>
* gcc.dg/tree-ssa/20050314-1.c: Dump and cleanup lim1 pass only.
* gcc.dg/tree-ssa/pr23109.c: Ditto.
* gcc.dg/tree-ssa/loop-7.c: Ditto.
......
gcc/testsuite/gcc.target/i386/pr49920.c 0 → 100644
/* { dg-do compile } */
/* { dg-options "-O2" } */
/* { dg-require-effective-target ia32 } */
typedef __SIZE_TYPE__ size_t;
extern void *malloc (size_t);
register unsigned int MR_mr0 asm ("esi");
register unsigned int MR_mr1 asm ("edi");
void ml_backend__ml_closure_gen_module11 (void)
{
unsigned int MR_tempr1, MR_tempr2, MR_tempr3;
MR_tempr1 = (unsigned int)((char *) malloc (sizeof (unsigned int)) + 4);
MR_tempr3 = ((unsigned int *) MR_mr0)[0];
((unsigned int *) (MR_tempr1 - 4))[0] = MR_tempr3;
MR_tempr2 = (unsigned int)((char *) malloc (2 * sizeof (unsigned int)));
((unsigned int *) MR_tempr2)[1] = MR_tempr1;
}
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