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* [gcc(refs/users/meissner/heads/work107)] Update fp conversions #2
@ 2023-01-25 4:41 Michael Meissner
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From: Michael Meissner @ 2023-01-25 4:41 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:6ea2485fa5573e7133ee20f3ef8e7075288b2de6
commit 6ea2485fa5573e7133ee20f3ef8e7075288b2de6
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Tue Jan 24 23:40:35 2023 -0500
Update fp conversions #2
2022-01-24 Michael Meissner <meissner@linux.ibm.com>
gcc/
* config/rs6000/rs6000.md (any_fp_cvt): New code iterator.
(fp_cvt): New code attribute.
(extendkftf2): Replace with <fp_cvt>kftf2.
(trunctfkf2): Replace with <fp_cvt>tfkf2.
(extendiftf2): Replace with <fp_cvt>iftf2.
(trunctfif2): Replace with <fp_cvt>tfif2.
(<fp_cvt>kftf2): Add both float_extend and float_truncate versions to
convert between 128-bit floating point types with the same format..
(<fp_cvt>tfkf2): Likewise.
(<fp_cvt>iftf2): Likewise.
(<fp_cvt>tfif2): Likewise.
Diff:
---
gcc/config/rs6000/rs6000.md | 28 ++++++++++++++++------------
1 file changed, 16 insertions(+), 12 deletions(-)
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index d57826290d0..7decb7f7974 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -633,6 +633,7 @@
(define_code_iterator any_extend [sign_extend zero_extend])
(define_code_iterator any_fix [fix unsigned_fix])
(define_code_iterator any_float [float unsigned_float])
+(define_code_iterator any_fp_cvt [float_extend float_truncate])
(define_code_attr u [(sign_extend "")
(zero_extend "u")
@@ -658,6 +659,9 @@
(float "")
(unsigned_float "uns")])
+(define_code_attr fp_cvt [(float_extend "extend")
+ (float_truncate "trunc")])
+
; Various instructions that come in SI and DI forms.
; A generic w/d attribute, for things like cmpw/cmpd.
(define_mode_attr wd [(QI "b")
@@ -9161,9 +9165,9 @@
;; using a SUBREG before register allocation. We set up the moves to prefer
;; the output register being the same as the input register, which would enable
;; the move to be deleted completely.
-(define_insn_and_split "extendkftf2"
+(define_insn_and_split "<fp_cvt>kftf2"
[(set (match_operand:TF 0 "gpc_reg_operand" "=wa,wa")
- (float_extend:TF (match_operand:KF 1 "gpc_reg_operand" "0,wa")))]
+ (any_fp_cvt:TF (match_operand:KF 1 "gpc_reg_operand" "0,wa")))]
"TARGET_FLOAT128_TYPE && FLOAT128_IEEE_P (TFmode)"
"#"
"&& reload_completed"
@@ -9174,9 +9178,9 @@
}
[(set_attr "type" "veclogical")])
-(define_insn_and_split "trunctfkf2"
+(define_insn_and_split "<fp_cvt>tfkf2"
[(set (match_operand:KF 0 "gpc_reg_operand" "=wa,wa")
- (float_truncate:KF (match_operand:TF 1 "gpc_reg_operand" "0,wa")))]
+ (any_fp_cvt:KF (match_operand:TF 1 "gpc_reg_operand" "0,wa")))]
"TARGET_FLOAT128_TYPE && FLOAT128_IEEE_P (TFmode)"
"#"
"&& reload_completed"
@@ -9187,30 +9191,30 @@
}
[(set_attr "type" "veclogical")])
-(define_insn_and_split "extendtfif2"
- [(set (match_operand:IF 0 "gpc_reg_operand" "=wa,wa,r,r")
- (float_extend:IF (match_operand:TF 1 "gpc_reg_operand" "0,wa,0,r")))]
+(define_insn_and_split "<fp_cvt>iftf2"
+ [(set (match_operand:TF 0 "gpc_reg_operand" "=wa,wa,r,r")
+ (any_fp_cvt:TF (match_operand:IF 1 "gpc_reg_operand" "0,wa,0,r")))]
"TARGET_HARD_FLOAT && FLOAT128_IBM_P (TFmode)"
"#"
"&& reload_completed"
[(set (match_dup 0)
(match_dup 2))]
{
- operands[2] = gen_lowpart (IFmode, operands[1]);
+ operands[2] = gen_lowpart (TFmode, operands[1]);
}
[(set_attr "num_insns" "2")
(set_attr "length" "8")])
-(define_insn_and_split "extendiftf2"
- [(set (match_operand:TF 0 "gpc_reg_operand" "=wa,wa,r,r")
- (float_extend:TF (match_operand:IF 1 "gpc_reg_operand" "0,wa,0,r")))]
+(define_insn_and_split "<fp_cvt>tfif2"
+ [(set (match_operand:IF 0 "gpc_reg_operand" "=wa,wa,r,r")
+ (any_fp_cvt:IF (match_operand:TF 1 "gpc_reg_operand" "0,wa,0,r")))]
"TARGET_HARD_FLOAT && FLOAT128_IBM_P (TFmode)"
"#"
"&& reload_completed"
[(set (match_dup 0)
(match_dup 2))]
{
- operands[2] = gen_lowpart (TFmode, operands[1]);
+ operands[2] = gen_lowpart (IFmode, operands[1]);
}
[(set_attr "num_insns" "2")
(set_attr "length" "8")])
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