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Fix rs6000 floatditf2.
- From: gkeating at apple dot com (Geoffrey Keating)
- To: gcc-patches at gcc dot gnu dot org
- Date: Thu, 8 Jan 2004 14:45:16 -0800 (PST)
- Subject: Fix rs6000 floatditf2.
This pattern was just wrong, DF can't hold the full precision of a DI.
Tested with 'make quickstrap' (rebuilding libgcc2), and a dejagnu
testrun with -mlong-double-128.
--
- Geoffrey Keating <geoffk@apple.com>
===File ~/patches/rs6000-longdouble-floatditf.patch=========
2004-01-08 Geoffrey Keating <geoffk@apple.com>
* config/rs6000/rs6000.md (floatditf2): Delete.
Index: config/rs6000/rs6000.md
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/rs6000/rs6000.md,v
retrieving revision 1.280
diff -u -p -c -p -r1.280 rs6000.md
*** config/rs6000/rs6000.md 6 Jan 2004 21:03:06 -0000 1.280
--- config/rs6000/rs6000.md 8 Jan 2004 22:27:09 -0000
***************
*** 8275,8295 ****
(float_truncate:SF (match_dup 2)))]
"")
- (define_insn_and_split "floatditf2"
- [(set (match_operand:TF 0 "gpc_reg_operand" "=f")
- (float:TF (match_operand:DI 1 "gpc_reg_operand" "*f")))
- (clobber (match_scratch:DF 2 "=f"))]
- "(DEFAULT_ABI == ABI_AIX || DEFAULT_ABI == ABI_DARWIN)
- && TARGET_POWERPC64
- && TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_LONG_DOUBLE_128"
- "#"
- "&& reload_completed"
- [(set (match_dup 2)
- (float:DF (match_dup 1)))
- (set (match_dup 0)
- (float_extend:TF (match_dup 2)))]
- "")
-
(define_expand "floatsitf2"
[(set (match_operand:TF 0 "gpc_reg_operand" "=f")
(float:TF (match_operand:SI 1 "gpc_reg_operand" "r")))]
--- 8289,8294 ----
============================================================