From 46c47420a5fefd4d9d02b0db347235dd74e20fb2 Mon Sep 17 00:00:00 2001
From: Stefan Schulze Frielinghaus <stefansf@linux.ibm.com>
Date: Mon, 12 Apr 2021 16:08:42 +0200
Subject: [PATCH] IBM Z: Add alternative to *movdi_{31,64} in order to load a
DFP zero
gcc/ChangeLog:
* config/s390/s390.md ("*movdi_31", "*movdi_64"): Add
alternative in order to load a DFP zero.
---
gcc/config/s390/s390.md | 25 ++++++++++++++-----------
1 file changed, 14 insertions(+), 11 deletions(-)
diff --git a/gcc/config/s390/s390.md b/gcc/config/s390/s390.md
index c10f25b24727..7faf775fbf2d 100644
--- a/gcc/config/s390/s390.md
+++ b/gcc/config/s390/s390.md
@@ -1868,9 +1868,9 @@
(define_insn "*movdi_64"
[(set (match_operand:DI 0 "nonimmediate_operand"
- "=d, d, d, d, d, d, d, d,f,d,d,d,d,d,T,!*f,!*f,!*f,!R,!T,b,Q,d,t,Q,t,v,v,v,d,v,R,d")
+ "=d, d, d, d, d, d, d, d,f,d,!*f,d,d,d,d,T,!*f,!*f,!*f,!R,!T,b,Q,d,t,Q,t,v,v,v,d,v,R,d")
(match_operand:DI 1 "general_operand"
- " K,N0HD0,N1HD0,N2HD0,N3HD0,Os,N0SD0,N1SD0,d,f,L,b,d,T,d, *f, R, T,*f,*f,d,K,t,d,t,Q,K,v,d,v,R,v,ZL"))]
+ " K,N0HD0,N1HD0,N2HD0,N3HD0,Os,N0SD0,N1SD0,d,f,j00,L,b,d,T,d, *f, R, T,*f,*f,d,K,t,d,t,Q,K,v,d,v,R,v,ZL"))]
"TARGET_ZARCH"
"@
lghi\t%0,%h1
@@ -1883,6 +1883,7 @@
llilf\t%0,%k1
ldgr\t%0,%1
lgdr\t%0,%1
+ lzdr\t%0
lay\t%0,%a1
lgrl\t%0,%1
lgr\t%0,%1
@@ -1906,13 +1907,13 @@
vleg\t%v0,%1,0
vsteg\t%v1,%0,0
larl\t%0,%1"
- [(set_attr "op_type" "RI,RI,RI,RI,RI,RIL,RIL,RIL,RRE,RRE,RXY,RIL,RRE,RXY,
+ [(set_attr "op_type" "RI,RI,RI,RI,RI,RIL,RIL,RIL,RRE,RRE,RRE,RXY,RIL,RRE,RXY,
RXY,RR,RX,RXY,RX,RXY,RIL,SIL,*,*,RS,RS,VRI,VRR,VRS,VRS,
VRX,VRX,RIL")
- (set_attr "type" "*,*,*,*,*,*,*,*,floaddf,floaddf,la,larl,lr,load,store,
+ (set_attr "type" "*,*,*,*,*,*,*,*,floaddf,floaddf,fsimpdf,la,larl,lr,load,store,
floaddf,floaddf,floaddf,fstoredf,fstoredf,larl,*,*,*,*,
*,*,*,*,*,*,*,larl")
- (set_attr "cpu_facility" "*,*,*,*,*,extimm,extimm,extimm,dfp,dfp,longdisp,
+ (set_attr "cpu_facility" "*,*,*,*,*,extimm,extimm,extimm,dfp,dfp,*,longdisp,
z10,*,*,*,*,*,longdisp,*,longdisp,
z10,z10,*,*,*,*,vx,vx,vx,vx,vx,vx,*")
(set_attr "z10prop" "z10_fwd_A1,
@@ -1925,6 +1926,7 @@
z10_fwd_E1,
*,
*,
+ *,
z10_fwd_A1,
z10_fwd_A3,
z10_fr_E1,
@@ -1942,7 +1944,7 @@
*,
*,*,*,*,*,*,*,
z10_super_A1")
- (set_attr "relative_long" "*,*,*,*,*,*,*,*,*,*,
+ (set_attr "relative_long" "*,*,*,*,*,*,*,*,*,*,*,
*,yes,*,*,*,*,*,*,*,*,
yes,*,*,*,*,*,*,*,*,*,
*,*,yes")
@@ -2002,9 +2004,9 @@
(define_insn "*movdi_31"
[(set (match_operand:DI 0 "nonimmediate_operand"
- "=d,d,Q,S,d ,o,!*f,!*f,!*f,!R,!T,d")
+ "=d,d,Q,S,d ,o,!*f,!*f,!*f,!*f,!R,!T,d")
(match_operand:DI 1 "general_operand"
- " Q,S,d,d,dPT,d, *f, R, T,*f,*f,b"))]
+ " Q,S,d,d,dPT,d, *f, R, T,j00,*f,*f,b"))]
"!TARGET_ZARCH"
"@
lm\t%0,%N0,%S1
@@ -2016,12 +2018,13 @@
ldr\t%0,%1
ld\t%0,%1
ldy\t%0,%1
+ lzdr\t%0
std\t%1,%0
stdy\t%1,%0
#"
- [(set_attr "op_type" "RS,RSY,RS,RSY,*,*,RR,RX,RXY,RX,RXY,*")
- (set_attr "type" "lm,lm,stm,stm,*,*,floaddf,floaddf,floaddf,fstoredf,fstoredf,*")
- (set_attr "cpu_facility" "*,longdisp,*,longdisp,*,*,*,*,longdisp,*,longdisp,z10")])
+ [(set_attr "op_type" "RS,RSY,RS,RSY,*,*,RR,RX,RXY,RRE,RX,RXY,*")
+ (set_attr "type" "lm,lm,stm,stm,*,*,floaddf,floaddf,floaddf,fsimpdf,fstoredf,fstoredf,*")
+ (set_attr "cpu_facility" "*,longdisp,*,longdisp,*,*,*,*,longdisp,*,*,longdisp,z10")])
; For a load from a symbol ref we can use one of the target registers
; together with larl to load the address.
--
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