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re PR target/44583 (c-c++-common/torture/complex-sign-add.c fails for signed zeros) 

2010-07-29  Steve Ellcey  <sje@cup.hp.com>

	PR target/44583
	* config/ia64/constraints.md (Z): New.
	* config/ia64/predicates.md (fr_reg_or_signed_fp01_operand): New.
	(xfreg_or_signed_fp01_operand): New.
	* config/ia64/ia64.md (addsf3): Replace fr_reg_or_fp01_operand
	with fr_reg_or_signed_fp01_operand and constraint G with Z.
	(subsf3): Ditto.
	(*maddsf4): Ditto.
	(*msubsf4): Ditto.
	(adddf3): Ditto.
	(adddf3_trunc): Ditto.
	(subdf3): Ditto.
	(*subdf3_trunc): Ditto.
	(*madddf4): Ditto.
	(*madddf4_trunc): Ditto.
	(*msubdf4): Ditto.
	(*msubdf4_trunc): Ditto.
	(addxf3): Replace xfreg_or_fp01_operand with
	xfreg_or_signed_fp01_operand and constraint G with Z.
	(*addxf3_truncsf): Ditto.
	(*addxf3_truncdf): Ditto.
	(subxf3): Ditto.
	(*subxf3_truncsf): Ditto.
	(*subxf3_truncdf): Ditto.
	(*maddxf4): Ditto.
	(*maddxf4_truncsf): Ditto.
	(*maddxf4_truncdf): Ditto.
	(*msubxf4): Ditto.
	(*msubxf4_truncsf): Ditto.
	(*msubxf4_truncdf): Ditto.

From-SVN: r162869
This commit is contained in:
Steve Ellcey 2010-08-04 18:32:37 +00:00 committed by Steve Ellcey
parent 3b0c690efc
commit 339746734a
4 changed files with 83 additions and 30 deletions
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33
gcc/ChangeLog
View File

@ -1,3 +1,36 @@
2010-08-04 Steve Ellcey <sje@cup.hp.com>
PR target/44583
* config/ia64/constraints.md (Z): New.
* config/ia64/predicates.md (fr_reg_or_signed_fp01_operand): New.
(xfreg_or_signed_fp01_operand): New.
* config/ia64/ia64.md (addsf3): Replace fr_reg_or_fp01_operand
with fr_reg_or_signed_fp01_operand and constraint G with Z.
(subsf3): Ditto.
(*maddsf4): Ditto.
(*msubsf4): Ditto.
(adddf3): Ditto.
(adddf3_trunc): Ditto.
(subdf3): Ditto.
(*subdf3_trunc): Ditto.
(*madddf4): Ditto.
(*madddf4_trunc): Ditto.
(*msubdf4): Ditto.
(*msubdf4_trunc): Ditto.
(addxf3): Replace xfreg_or_fp01_operand with
xfreg_or_signed_fp01_operand and constraint G with Z.
(*addxf3_truncsf): Ditto.
(*addxf3_truncdf): Ditto.
(subxf3): Ditto.
(*subxf3_truncsf): Ditto.
(*subxf3_truncdf): Ditto.
(*maddxf4): Ditto.
(*maddxf4_truncsf): Ditto.
(*maddxf4_truncdf): Ditto.
(*msubxf4): Ditto.
(*msubxf4_truncsf): Ditto.
(*msubxf4_truncdf): Ditto.
2010-08-04 Richard Guenther <rguenther@suse.de>
* alias.c (rtx_refs_may_alias_p): Do not resort to TBAA

7
gcc/config/ia64/constraints.md
View File

@ -95,6 +95,13 @@
(and (match_code "const_double")
(match_test "op == CONST0_RTX (mode) || op == CONST1_RTX (mode)")))
(define_constraint "Z"
"1.0 or (0.0 and !flag_signed_zeros)"
(and (match_code "const_double")
(ior (match_test "op == CONST1_RTX (mode)")
(and (match_test "op == CONST0_RTX (mode)")
(match_test "!flag_signed_zeros")))))
(define_constraint "H"
"0.0"
(and (match_code "const_double")

60
gcc/config/ia64/ia64.md
View File

@ -2663,8 +2663,8 @@
(define_insn "addsf3"
[(set (match_operand:SF 0 "fr_register_operand" "=f")
(plus:SF (match_operand:SF 1 "fr_reg_or_fp01_operand" "fG")
(match_operand:SF 2 "fr_reg_or_fp01_operand" "fG")))]
(plus:SF (match_operand:SF 1 "fr_reg_or_fp01_operand" "%fG")
(match_operand:SF 2 "fr_reg_or_signed_fp01_operand" "fZ")))]
""
"fadd.s %0 = %F1, %F2"
[(set_attr "itanium_class" "fmac")])
@ -2672,7 +2672,7 @@
(define_insn "subsf3"
[(set (match_operand:SF 0 "fr_register_operand" "=f")
(minus:SF (match_operand:SF 1 "fr_reg_or_fp01_operand" "fG")
(match_operand:SF 2 "fr_reg_or_fp01_operand" "fG")))]
(match_operand:SF 2 "fr_reg_or_signed_fp01_operand" "fZ")))]
""
"fsub.s %0 = %F1, %F2"
[(set_attr "itanium_class" "fmac")])
@ -2744,7 +2744,7 @@
[(set (match_operand:SF 0 "fr_register_operand" "=f")
(plus:SF (mult:SF (match_operand:SF 1 "fr_reg_or_fp01_operand" "fG")
(match_operand:SF 2 "fr_reg_or_fp01_operand" "fG"))
(match_operand:SF 3 "fr_reg_or_fp01_operand" "fG")))]
(match_operand:SF 3 "fr_reg_or_signed_fp01_operand" "fZ")))]
"TARGET_FUSED_MADD"
"fma.s %0 = %F1, %F2, %F3"
[(set_attr "itanium_class" "fmac")])
@ -2753,7 +2753,7 @@
[(set (match_operand:SF 0 "fr_register_operand" "=f")
(minus:SF (mult:SF (match_operand:SF 1 "fr_reg_or_fp01_operand" "fG")
(match_operand:SF 2 "fr_reg_or_fp01_operand" "fG"))
(match_operand:SF 3 "fr_reg_or_fp01_operand" "fG")))]
(match_operand:SF 3 "fr_reg_or_signed_fp01_operand" "fZ")))]
"TARGET_FUSED_MADD"
"fms.s %0 = %F1, %F2, %F3"
[(set_attr "itanium_class" "fmac")])
@ -2783,8 +2783,8 @@
(define_insn "adddf3"
[(set (match_operand:DF 0 "fr_register_operand" "=f")
(plus:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "fG")
(match_operand:DF 2 "fr_reg_or_fp01_operand" "fG")))]
(plus:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "%fG")
(match_operand:DF 2 "fr_reg_or_signed_fp01_operand" "fZ")))]
""
"fadd.d %0 = %F1, %F2"
[(set_attr "itanium_class" "fmac")])
@ -2792,8 +2792,8 @@
(define_insn "*adddf3_trunc"
[(set (match_operand:SF 0 "fr_register_operand" "=f")
(float_truncate:SF
(plus:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "fG")
(match_operand:DF 2 "fr_reg_or_fp01_operand" "fG"))))]
(plus:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "%fG")
(match_operand:DF 2 "fr_reg_or_signed_fp01_operand" "fZ"))))]
""
"fadd.s %0 = %F1, %F2"
[(set_attr "itanium_class" "fmac")])
@ -2801,7 +2801,7 @@
(define_insn "subdf3"
[(set (match_operand:DF 0 "fr_register_operand" "=f")
(minus:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "fG")
(match_operand:DF 2 "fr_reg_or_fp01_operand" "fG")))]
(match_operand:DF 2 "fr_reg_or_signed_fp01_operand" "fZ")))]
""
"fsub.d %0 = %F1, %F2"
[(set_attr "itanium_class" "fmac")])
@ -2810,7 +2810,7 @@
[(set (match_operand:SF 0 "fr_register_operand" "=f")
(float_truncate:SF
(minus:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "fG")
(match_operand:DF 2 "fr_reg_or_fp01_operand" "fG"))))]
(match_operand:DF 2 "fr_reg_or_signed_fp01_operand" "fZ"))))]
""
"fsub.s %0 = %F1, %F2"
[(set_attr "itanium_class" "fmac")])
@ -2891,7 +2891,7 @@
[(set (match_operand:DF 0 "fr_register_operand" "=f")
(plus:DF (mult:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "fG")
(match_operand:DF 2 "fr_reg_or_fp01_operand" "fG"))
(match_operand:DF 3 "fr_reg_or_fp01_operand" "fG")))]
(match_operand:DF 3 "fr_reg_or_signed_fp01_operand" "fZ")))]
"TARGET_FUSED_MADD"
"fma.d %0 = %F1, %F2, %F3"
[(set_attr "itanium_class" "fmac")])
@ -2901,7 +2901,7 @@
(float_truncate:SF
(plus:DF (mult:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "fG")
(match_operand:DF 2 "fr_reg_or_fp01_operand" "fG"))
(match_operand:DF 3 "fr_reg_or_fp01_operand" "fG"))))]
(match_operand:DF 3 "fr_reg_or_signed_fp01_operand" "fZ"))))]
"TARGET_FUSED_MADD"
"fma.s %0 = %F1, %F2, %F3"
[(set_attr "itanium_class" "fmac")])
@ -2910,7 +2910,7 @@
[(set (match_operand:DF 0 "fr_register_operand" "=f")
(minus:DF (mult:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "fG")
(match_operand:DF 2 "fr_reg_or_fp01_operand" "fG"))
(match_operand:DF 3 "fr_reg_or_fp01_operand" "fG")))]
(match_operand:DF 3 "fr_reg_or_signed_fp01_operand" "fZ")))]
"TARGET_FUSED_MADD"
"fms.d %0 = %F1, %F2, %F3"
[(set_attr "itanium_class" "fmac")])
@ -2920,7 +2920,7 @@
(float_truncate:SF
(minus:DF (mult:DF (match_operand:DF 1 "fr_reg_or_fp01_operand" "fG")
(match_operand:DF 2 "fr_reg_or_fp01_operand" "fG"))
(match_operand:DF 3 "fr_reg_or_fp01_operand" "fG"))))]
(match_operand:DF 3 "fr_reg_or_signed_fp01_operand" "fZ"))))]
"TARGET_FUSED_MADD"
"fms.s %0 = %F1, %F2, %F3"
[(set_attr "itanium_class" "fmac")])
@ -2969,8 +2969,8 @@
(define_insn "addxf3"
[(set (match_operand:XF 0 "fr_register_operand" "=f")
(plus:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "fG")
(match_operand:XF 2 "xfreg_or_fp01_operand" "fG")))]
(plus:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "%fG")
(match_operand:XF 2 "xfreg_or_signed_fp01_operand" "fZ")))]
""
"fadd %0 = %F1, %F2"
[(set_attr "itanium_class" "fmac")])
@ -2978,8 +2978,8 @@
(define_insn "*addxf3_truncsf"
[(set (match_operand:SF 0 "fr_register_operand" "=f")
(float_truncate:SF
(plus:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "fG")
(match_operand:XF 2 "xfreg_or_fp01_operand" "fG"))))]
(plus:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "%fG")
(match_operand:XF 2 "xfreg_or_signed_fp01_operand" "fZ"))))]
""
"fadd.s %0 = %F1, %F2"
[(set_attr "itanium_class" "fmac")])
@ -2987,8 +2987,8 @@
(define_insn "*addxf3_truncdf"
[(set (match_operand:DF 0 "fr_register_operand" "=f")
(float_truncate:DF
(plus:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "fG")
(match_operand:XF 2 "xfreg_or_fp01_operand" "fG"))))]
(plus:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "%fG")
(match_operand:XF 2 "xfreg_or_signed_fp01_operand" "fZ"))))]
""
"fadd.d %0 = %F1, %F2"
[(set_attr "itanium_class" "fmac")])
@ -2996,7 +2996,7 @@
(define_insn "subxf3"
[(set (match_operand:XF 0 "fr_register_operand" "=f")
(minus:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "fG")
(match_operand:XF 2 "xfreg_or_fp01_operand" "fG")))]
(match_operand:XF 2 "xfreg_or_signed_fp01_operand" "fZ")))]
""
"fsub %0 = %F1, %F2"
[(set_attr "itanium_class" "fmac")])
@ -3005,7 +3005,7 @@
[(set (match_operand:SF 0 "fr_register_operand" "=f")
(float_truncate:SF
(minus:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "fG")
(match_operand:XF 2 "xfreg_or_fp01_operand" "fG"))))]
(match_operand:XF 2 "xfreg_or_signed_fp01_operand" "fZ"))))]
""
"fsub.s %0 = %F1, %F2"
[(set_attr "itanium_class" "fmac")])
@ -3014,7 +3014,7 @@
[(set (match_operand:DF 0 "fr_register_operand" "=f")
(float_truncate:DF
(minus:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "fG")
(match_operand:XF 2 "xfreg_or_fp01_operand" "fG"))))]
(match_operand:XF 2 "xfreg_or_signed_fp01_operand" "fZ"))))]
""
"fsub.d %0 = %F1, %F2"
[(set_attr "itanium_class" "fmac")])
@ -3104,7 +3104,7 @@
[(set (match_operand:XF 0 "fr_register_operand" "=f")
(plus:XF (mult:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "fG")
(match_operand:XF 2 "xfreg_or_fp01_operand" "fG"))
(match_operand:XF 3 "xfreg_or_fp01_operand" "fG")))]
(match_operand:XF 3 "xfreg_or_signed_fp01_operand" "fZ")))]
"TARGET_FUSED_MADD"
"fma %0 = %F1, %F2, %F3"
[(set_attr "itanium_class" "fmac")])
@ -3114,7 +3114,7 @@
(float_truncate:SF
(plus:XF (mult:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "fG")
(match_operand:XF 2 "xfreg_or_fp01_operand" "fG"))
(match_operand:XF 3 "xfreg_or_fp01_operand" "fG"))))]
(match_operand:XF 3 "xfreg_or_signed_fp01_operand" "fZ"))))]
"TARGET_FUSED_MADD"
"fma.s %0 = %F1, %F2, %F3"
[(set_attr "itanium_class" "fmac")])
@ -3124,7 +3124,7 @@
(float_truncate:DF
(plus:XF (mult:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "fG")
(match_operand:XF 2 "xfreg_or_fp01_operand" "fG"))
(match_operand:XF 3 "xfreg_or_fp01_operand" "fG"))))]
(match_operand:XF 3 "xfreg_or_signed_fp01_operand" "fZ"))))]
"TARGET_FUSED_MADD"
"fma.d %0 = %F1, %F2, %F3"
[(set_attr "itanium_class" "fmac")])
@ -3133,7 +3133,7 @@
[(set (match_operand:XF 0 "fr_register_operand" "=f")
(minus:XF (mult:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "fG")
(match_operand:XF 2 "xfreg_or_fp01_operand" "fG"))
(match_operand:XF 3 "xfreg_or_fp01_operand" "fG")))]
(match_operand:XF 3 "xfreg_or_signed_fp01_operand" "fZ")))]
"TARGET_FUSED_MADD"
"fms %0 = %F1, %F2, %F3"
[(set_attr "itanium_class" "fmac")])
@ -3143,7 +3143,7 @@
(float_truncate:SF
(minus:XF (mult:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "fG")
(match_operand:XF 2 "xfreg_or_fp01_operand" "fG"))
(match_operand:XF 3 "xfreg_or_fp01_operand" "fG"))))]
(match_operand:XF 3 "xfreg_or_signed_fp01_operand" "fZ"))))]
"TARGET_FUSED_MADD"
"fms.s %0 = %F1, %F2, %F3"
[(set_attr "itanium_class" "fmac")])
@ -3153,7 +3153,7 @@
(float_truncate:DF
(minus:XF (mult:XF (match_operand:XF 1 "xfreg_or_fp01_operand" "fG")
(match_operand:XF 2 "xfreg_or_fp01_operand" "fG"))
(match_operand:XF 3 "xfreg_or_fp01_operand" "fG"))))]
(match_operand:XF 3 "xfreg_or_signed_fp01_operand" "fZ"))))]
"TARGET_FUSED_MADD"
"fms.d %0 = %F1, %F2, %F3"
[(set_attr "itanium_class" "fmac")])

13
gcc/config/ia64/predicates.md
View File

@ -542,6 +542,19 @@
(and (match_operand 0 "fr_reg_or_fp01_operand")
(not (match_code "subreg"))))
;; Like fr_reg_or_fp01_operand, but don't allow 0 if flag_signed_zero is set.
;; Using f0 as the second arg to fadd or fsub, or as the third arg to fma or
;; fms can cause a zero result to have the wrong sign.
(define_predicate "fr_reg_or_signed_fp01_operand"
(ior (match_operand 0 "fr_register_operand")
(and (match_code "const_double")
(match_test "satisfies_constraint_Z (op)"))))
;; Like fr_reg_or_signed_fp01_operand, but don't allow any SUBREGs.
(define_predicate "xfreg_or_signed_fp01_operand"
(and (match_operand 0 "fr_reg_or_signed_fp01_operand")
(not (match_code "subreg"))))
;; True if OP is a constant zero, or a register.
(define_predicate "fr_reg_or_0_operand"
(ior (match_operand 0 "fr_register_operand")