[llvm-commits] [llvm] r119868 - /llvm/trunk/lib/Target/ARM/ARMInstrThumb.td
Bill Wendling
isanbard at gmail.com
Fri Nov 19 15:14:32 PST 2010
Author: void
Date: Fri Nov 19 17:14:32 2010
New Revision: 119868
URL: http://llvm.org/viewvc/llvm-project?rev=119868&view=rev
Log:
Encodings for the compare instructions.
Modified:
llvm/trunk/lib/Target/ARM/ARMInstrThumb.td
Modified: llvm/trunk/lib/Target/ARM/ARMInstrThumb.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrThumb.td?rev=119868&r1=119867&r2=119868&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrThumb.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrThumb.td Fri Nov 19 17:14:32 2010
@@ -316,11 +316,11 @@
let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
def tBRIND : TI<(outs), (ins GPR:$Rm), IIC_Br, "mov\tpc, $Rm",
[(brind GPR:$Rm)]>,
- T1Special<{1,0,1,?}> {
+ T1Special<{1,0,?,?}> {
bits<4> Rm;
-
let Inst{6-3} = Rm;
- let Inst{2-0} = 0b111; // <Rd> = Inst{7:2-0} = pc
+ let Inst{7} = 0b1; // <Rd> = Inst{7:2-0} = pc
+ let Inst{2-0} = 0b111;
}
}
@@ -332,7 +332,6 @@
"pop${p}\t$regs", []>,
T1Misc<{1,1,0,?,?,?,?}> {
bits<16> regs;
-
let Inst{8} = regs{15};
let Inst{7-0} = regs{7-0};
}
@@ -442,13 +441,25 @@
// Compare and branch on zero / non-zero
let isBranch = 1, isTerminator = 1 in {
- def tCBZ : T1I<(outs), (ins tGPR:$cmp, brtarget:$target), IIC_Br,
- "cbz\t$cmp, $target", []>,
- T1Misc<{0,0,?,1,?,?,?}>;
+ def tCBZ : T1I<(outs), (ins tGPR:$Rn, brtarget:$target), IIC_Br,
+ "cbz\t$Rn, $target", []>,
+ T1Misc<{0,0,?,1,?,?,?}> {
+ bits<6> target;
+ bits<3> Rn;
+ let Inst{9} = target{5};
+ let Inst{7-3} = target{4-0};
+ let Inst{2-0} = Rn;
+ }
def tCBNZ : T1I<(outs), (ins tGPR:$cmp, brtarget:$target), IIC_Br,
"cbnz\t$cmp, $target", []>,
- T1Misc<{1,0,?,1,?,?,?}>;
+ T1Misc<{1,0,?,1,?,?,?}> {
+ bits<6> target;
+ bits<3> Rn;
+ let Inst{9} = target{5};
+ let Inst{7-3} = target{4-0};
+ let Inst{2-0} = Rn;
+ }
}
// A8.6.218 Supervisor Call (Software Interrupt) -- for disassembly only
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