[llvm] r319030 - [mips] fix asmstring of Ext and Ins instructions and mips16 JALRC/JRC

Petar Jovanovic via llvm-commits llvm-commits at lists.llvm.org
Mon Nov 27 06:25:36 PST 2017


Author: petarj
Date: Mon Nov 27 06:25:36 2017
New Revision: 319030

URL: http://llvm.org/viewvc/llvm-project?rev=319030&view=rev
Log:
[mips] fix asmstring of Ext and Ins instructions and mips16 JALRC/JRC

Make the print format consistent with other assembler instructions.

Adding a tab character instead of space in asmstring of Ext and Ins
instructions.
Removing space around the tab character for JALRC and replacing space with
tab in JRC.

Patch by Milos Stojanovic.

Differential Revision: https://reviews.llvm.org/D38144

Added:
    llvm/trunk/test/CodeGen/Mips/whitespace.ll
Modified:
    llvm/trunk/lib/Target/Mips/Mips16InstrInfo.td
    llvm/trunk/lib/Target/Mips/MipsInstrInfo.td

Modified: llvm/trunk/lib/Target/Mips/Mips16InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/Mips16InstrInfo.td?rev=319030&r1=319029&r2=319030&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/Mips16InstrInfo.td (original)
+++ llvm/trunk/lib/Target/Mips/Mips16InstrInfo.td Mon Nov 27 06:25:36 2017
@@ -369,14 +369,14 @@ class FRxRxRy16_ins<bits<5> f, string as
 let rx=0 in
 class FRR16_JALRC_RA_only_ins<bits<1> nd_, bits<1> l_,
                               string asmstr, InstrItinClass itin>:
-  FRR16_JALRC<nd_, l_, 1, (outs), (ins), !strconcat(asmstr, "\t $$ra"),
+  FRR16_JALRC<nd_, l_, 1, (outs), (ins), !strconcat(asmstr, "\t$$ra"),
               [], itin> ;
 
 
 class FRR16_JALRC_ins<bits<1> nd, bits<1> l, bits<1> ra,
                       string asmstr, InstrItinClass itin>:
   FRR16_JALRC<nd, l, ra, (outs), (ins CPU16Regs:$rx),
-              !strconcat(asmstr, "\t $rx"), [], itin> ;
+              !strconcat(asmstr, "\t$rx"), [], itin> ;
 
 class FRR_SF16_ins
   <bits<5> _funct, bits<3> _subfunc,
@@ -1376,7 +1376,7 @@ def: Mips16Pat<(brind CPU16Regs:$rs), (J
 let isCall=1, hasDelaySlot=0 in
 def JumpLinkReg16:
   FRR16_JALRC<0, 0, 0, (outs), (ins CPU16Regs:$rs),
-              "jalrc \t$rs", [(MipsJmpLink CPU16Regs:$rs)], II_JALRC> {
+              "jalrc\t$rs", [(MipsJmpLink CPU16Regs:$rs)], II_JALRC> {
   let Defs = [RA];
 }
 

Modified: llvm/trunk/lib/Target/Mips/MipsInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsInstrInfo.td?rev=319030&r1=319029&r2=319030&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsInstrInfo.td (original)
+++ llvm/trunk/lib/Target/Mips/MipsInstrInfo.td Mon Nov 27 06:25:36 2017
@@ -1724,7 +1724,7 @@ class ExtBase<string opstr, RegisterOper
               Operand SizeOpnd, PatFrag PosImm, PatFrag SizeImm,
               SDPatternOperator Op = null_frag> :
   InstSE<(outs RO:$rt), (ins RO:$rs, PosOpnd:$pos, SizeOpnd:$size),
-         !strconcat(opstr, " $rt, $rs, $pos, $size"),
+         !strconcat(opstr, "\t$rt, $rs, $pos, $size"),
          [(set RO:$rt, (Op RO:$rs, PosImm:$pos, SizeImm:$size))], II_EXT,
          FrmR, opstr>, ISA_MIPS32R2;
 
@@ -1732,7 +1732,7 @@ class ExtBase<string opstr, RegisterOper
 class InsBase<string opstr, RegisterOperand RO, Operand PosOpnd,
               Operand SizeOpnd, PatFrag PosImm, PatFrag SizeImm>:
   InstSE<(outs RO:$rt), (ins RO:$rs, PosOpnd:$pos, SizeOpnd:$size, RO:$src),
-         !strconcat(opstr, " $rt, $rs, $pos, $size"),
+         !strconcat(opstr, "\t$rt, $rs, $pos, $size"),
          [(set RO:$rt, (null_frag RO:$rs, PosImm:$pos, SizeImm:$size,
                                   RO:$src))],
          II_INS, FrmR, opstr>, ISA_MIPS32R2 {

Added: llvm/trunk/test/CodeGen/Mips/whitespace.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/Mips/whitespace.ll?rev=319030&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/Mips/whitespace.ll (added)
+++ llvm/trunk/test/CodeGen/Mips/whitespace.ll Mon Nov 27 06:25:36 2017
@@ -0,0 +1,62 @@
+; Test that the instructions have the correct whitespace.
+; RUN: llc  -march=mipsel -mattr=mips16 -relocation-model=pic < %s | FileCheck -strict-whitespace %s -check-prefix=16
+; RUN: llc  -march=mips -mcpu=mips32r2 < %s | FileCheck %s -strict-whitespace -check-prefix=32R2
+
+ at main.L = internal unnamed_addr constant [5 x i8*] [i8* blockaddress(@main, %L1), i8* blockaddress(@main, %L2), i8* blockaddress(@main, %L3), i8* blockaddress(@main, %L4), i8* null], align 4
+ at str = private unnamed_addr constant [2 x i8] c"A\00"
+ at str5 = private unnamed_addr constant [2 x i8] c"B\00"
+ at str6 = private unnamed_addr constant [2 x i8] c"C\00"
+ at str7 = private unnamed_addr constant [2 x i8] c"D\00"
+ at str8 = private unnamed_addr constant [2 x i8] c"E\00"
+
+define i32 @main() nounwind {
+entry:
+; 16: jalrc	${{[0-9]+}}
+; 16: jrc	${{[0-9]+}}
+; 16: jrc	$ra
+  %puts = tail call i32 @puts(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @str, i32 0, i32 0))
+  br label %L1
+
+L1:                                               ; preds = %entry, %L3
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %L3 ]
+  %puts5 = tail call i32 @puts(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @str5, i32 0, i32 0))
+  br label %L2
+
+L2:                                               ; preds = %L1, %L3
+  %i.1 = phi i32 [ %i.0, %L1 ], [ %inc, %L3 ]
+  %puts6 = tail call i32 @puts(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @str6, i32 0, i32 0))
+  br label %L3
+
+L3:                                               ; preds = %L2, %L3
+  %i.2 = phi i32 [ %i.1, %L2 ], [ %inc, %L3 ]
+  %puts7 = tail call i32 @puts(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @str7, i32 0, i32 0))
+  %inc = add i32 %i.2, 1
+  %arrayidx = getelementptr inbounds [5 x i8*], [5 x i8*]* @main.L, i32 0, i32 %i.2
+  %0 = load i8*, i8** %arrayidx, align 4
+  indirectbr i8* %0, [label %L1, label %L2, label %L3, label %L4]
+L4:                                               ; preds = %L3
+  %puts8 = tail call i32 @puts(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @str8, i32 0, i32 0))
+  ret i32 0
+}
+
+declare i32 @puts(i8* nocapture) nounwind
+
+define i32 @ext(i32 %s, i32 %pos, i32 %sz) nounwind readnone {
+entry:
+; 32R2: ext	${{[0-9]+}}, $4, 5, 9
+  %shr = lshr i32 %s, 5
+  %and = and i32 %shr, 511
+  ret i32 %and
+}
+
+define void @ins(i32 %s, i32* nocapture %d) nounwind {
+entry:
+; 32R2: ins	${{[0-9]+}}, $4, 5, 9
+  %and = shl i32 %s, 5
+  %shl = and i32 %and, 16352
+  %tmp3 = load i32, i32* %d, align 4
+  %and5 = and i32 %tmp3, -16353
+  %or = or i32 %and5, %shl
+  store i32 %or, i32* %d, align 4
+  ret void
+}




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