S/390: Replace LDER with LDR.

For performance reasons it is important to write the full 64 bits of
an FPR target reg even when dealing with 32 bit values.  So we chose
lder over ler for 32 bit float register moves.  lder zero-extends the
32 bit value from the source reg to 64 bit in the target.  However,
since it actually doesn't matter whether we write the upper 32 bits
with zeros or with any other garbage we can also use ldr instead.  It
is bit shorter and therefore will do good for I-Cache usage.

gcc/ChangeLog:

2016-04-29  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/2964.md ("z13_unit_fxu", "z13_0"): Remove lder.
	* config/s390/s390.md ("movsi_larl", "*movsi_esa", "mov<mode>"):
	Change lder to ldr.
	* config/s390/vector.md ("mov<mode>"): Likewise.

From-SVN: r235627

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 18878cb0c8582d45c3892dcdd375cdebfd62786b..31e32355bce759995f945dd9ef45b05404895e1f 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2016-04-29  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
+       * config/s390/2964.md ("z13_unit_fxu", "z13_0"): Remove lder.
+       * config/s390/s390.md ("movsi_larl", "*movsi_esa", "mov<mode>"):
+       Change lder to ldr.
+       * config/s390/vector.md ("mov<mode>"): Likewise.
+
 2016-04-29  Ulrich Weigand  <uweigand@de.ibm.com>
 
        * config/s390/constraints.md ("U", "W"): Invoke

diff --git a/gcc/config/s390/2964.md b/gcc/config/s390/2964.md
index d2211e1b96d15f30879095efb67a6aa0840a5db7..e0e732b7f6d68fbff2e9a2a40d4384ad48454c53 100644 (file)
--- a/gcc/config/s390/2964.md
+++ b/gcc/config/s390/2964.md
@@ -57,7 +57,7 @@ vllezh,oc,xc,clc,lrl,ear,nc,lgrl,sfpc,llgf,llgfrl,llgh,llgt,lcbb,vll,sar") (cons
 (define_attr "z13_unit_fxu" ""
   (cond [(eq_attr "mnemonic" "s,lcgr,x,nop,oiy,ppa,ng,msy,sgrk,vstl,aghik,\
 msgf,ipm,mvi,stocg,rll,srlg,cghsi,clgit,srlk,alrk,sg,sh,sl,st,sy,vst,ark,\
-xgr,agsi,tm,nrk,shy,llhr,agf,alcr,slgfr,sr,clgrt,laa,lder,sgf,lan,llilf,\
+xgr,agsi,tm,nrk,shy,llhr,agf,alcr,slgfr,sr,clgrt,laa,sgf,lan,llilf,\
 llilh,ag,llill,lay,al,n,laxg,ar,ahi,sgr,ntstg,ay,stcy,nopr,mfy,ngrk,lbr,\
 br,dsgr,stdy,ork,ldgr,lcr,cg,ch,lgfrl,cl,stoc,cr,agfr,stgrl,cy,alfi,xg,\
 cgfi,xi,clfhsi,cgfr,xr,slb,mghi,clfi,slg,clhhsi,agfi,clfit,sly,mr,ldr,nihf,\
@@ -121,7 +121,7 @@ vchfs,madb,ddbr") (const_int 1)]
   (and (eq_attr "cpu" "z13")
        (eq_attr "mnemonic" "s,lcgr,x,nop,oiy,vlbb,ppa,ng,sgrk,vstl,aghik,\
 mvc,ipm,llgc,mvi,stocg,rll,jg,srlg,cghsi,clgit,srlk,alrk,sg,sh,sl,st,sy,\
-vst,ark,xgr,agsi,tm,nrk,shy,llhr,agf,alcr,slgfr,sr,clgrt,llc,laa,lder,sgf,\
+vst,ark,xgr,agsi,tm,nrk,shy,llhr,agf,alcr,slgfr,sr,clgrt,llc,laa,sgf,\
 lan,llhrl,llilf,llilh,ag,llill,lay,al,n,laxg,ar,ahi,sgr,ntstg,ay,stcy,vl,\
 nopr,ngrk,lbr,br,stdy,ork,ldgr,lcr,cg,ch,llghrl,lgfrl,cl,stoc,cr,agfr,stgrl,\
 cy,alfi,xg,cgfi,xi,vlrepf,vlrepg,vlreph,clfhsi,cgfr,xr,slb,mghi,clfi,slg,\

diff --git a/gcc/config/s390/s390.md b/gcc/config/s390/s390.md
index 875747026b4b96bb2a48065b647333424055396d..12a7f2a63c39f3b5035713fb52d3ec613f7fac74 100644 (file)
--- a/gcc/config/s390/s390.md
+++ b/gcc/config/s390/s390.md
@@ -1924,7 +1924,7 @@
    ly\t%0,%1
    st\t%1,%0
    sty\t%1,%0
-   lder\t%0,%1
+   ldr\t%0,%1
    ler\t%0,%1
    lde\t%0,%1
    le\t%0,%1
@@ -1944,7 +1944,7 @@
    vlef\t%v0,%1,0
    vstef\t%v1,%0,0"
   [(set_attr "op_type" "RI,RI,RI,RIL,RXY,RIL,RR,RX,RXY,RX,RXY,
-                        RRE,RR,RXE,RX,RXY,RX,RXY,RRE,RRE,RS,RIL,SIL,RS,VRI,VRR,VRS,VRS,VRX,VRX")
+                        RR,RR,RXE,RX,RXY,RX,RXY,RRE,RRE,RS,RIL,SIL,RS,VRI,VRR,VRS,VRS,VRX,VRX")
    (set_attr "type" "*,
                      *,
                      *,
@@ -2005,7 +2005,7 @@
    lr\t%0,%1
    l\t%0,%1
    st\t%1,%0
-   lder\t%0,%1
+   ldr\t%0,%1
    ler\t%0,%1
    lde\t%0,%1
    le\t%0,%1
@@ -2014,7 +2014,7 @@
    sar\t%0,%1
    stam\t%1,%1,%S0
    lam\t%0,%0,%S1"
-  [(set_attr "op_type" "RI,RR,RX,RX,RRE,RR,RXE,RX,RX,RRE,RRE,RS,RS")
+  [(set_attr "op_type" "RI,RR,RX,RX,RR,RR,RXE,RX,RX,RRE,RRE,RS,RS")
    (set_attr "type" "*,lr,load,store,floadsf,floadsf,floadsf,floadsf,fstoresf,*,*,*,*")
    (set_attr "z10prop" "z10_fwd_A1,z10_fr_E1,z10_fwd_A3,z10_rec,*,*,*,*,*,z10_super_E1,
                         z10_super,*,*")
@@ -2550,7 +2550,7 @@
   ""
   "@
    lzer\t%0
-   lder\t%0,%1
+   ldr\t%0,%1
    ler\t%0,%1
    lde\t%0,%1
    le\t%0,%1
@@ -2571,7 +2571,7 @@
    vlgvf\t%0,%v1,0
    vleg\t%0,%1,0
    vsteg\t%1,%0,0"
-  [(set_attr "op_type" "RRE,RRE,RR,RXE,RX,RXY,RX,RXY,RI,RR,RIL,RX,RXY,RIL,RX,RXY,VRR,VRI,VRS,VRS,VRX,VRX")
+  [(set_attr "op_type" "RRE,RR,RR,RXE,RX,RXY,RX,RXY,RI,RR,RIL,RX,RXY,RIL,RX,RXY,VRR,VRI,VRS,VRS,VRX,VRX")
    (set_attr "type"    "fsimpsf,fsimpsf,fload<mode>,fload<mode>,fload<mode>,fload<mode>,
                         fstore<mode>,fstore<mode>,*,lr,load,load,load,store,store,store,*,*,*,*,load,store")
    (set_attr "z10prop" "*,*,*,*,*,*,*,*,z10_fwd_A1,z10_fr_E1,z10_fr_E1,z10_fwd_A3,z10_fwd_A3,z10_rec,z10_rec,z10_rec,*,*,*,*,*,*")

diff --git a/gcc/config/s390/vector.md b/gcc/config/s390/vector.md
index 979cb29b02ae58feb7418ff426eec1550ad80897..bc4f8dadf3da226fd1ce8883912badfbdc5dd8bc 100644 (file)
--- a/gcc/config/s390/vector.md
+++ b/gcc/config/s390/vector.md
@@ -237,7 +237,7 @@
        (match_operand:V_32 1 "general_operand"      " f,R,T,f,f,v,d,v,R,v,j00,j00,jm1,jyy,jxx,j00,jm1,j00,jm1,b,d,R,T,d,d,d"))]
   "TARGET_VX"
   "@
-   lder\t%v0,%v1
+   ldr\t%v0,%v1
    lde\t%0,%1
    ley\t%0,%1
    ste\t%1,%0
@@ -263,7 +263,7 @@
    st\t%1,%0
    sty\t%1,%0
    strl\t%1,%0"
-  [(set_attr "op_type" "RRE,RXE,RXY,RX,RXY,VRR,VRS,VRS,VRX,VRX,RRE,VRI,VRI,VRI,VRI,SIL,SIL,RI,RI,
+  [(set_attr "op_type" "RR,RXE,RXY,RX,RXY,VRR,VRS,VRS,VRX,VRX,RRE,VRI,VRI,VRI,VRI,SIL,SIL,RI,RI,
                         RIL,RR,RX,RXY,RX,RXY,RIL")])
 
 (define_insn "mov<mode>"