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Added LDRSBT, LDRHT, LDRSHT for disassembly only. And fixed encoding errors 

of AI3ldsbpo, AI3ldhpo, and AI3ldshpo in ARMInstrFormats.td in the process.

llvm-svn: 96565
This commit is contained in:
Johnny Chen 2010-02-18 03:27:42 +00:00
parent 89b12b34f6
commit 74c904589e
2 changed files with 24 additions and 6 deletions
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6
llvm/lib/Target/ARM/ARMInstrFormats.td
View File

@ -734,7 +734,7 @@ class AI3ldhpo<dag oops, dag iops, Format f, InstrItinClass itin,
let Inst{6} = 0; // S bit
let Inst{7} = 1;
let Inst{20} = 1; // L bit
let Inst{21} = 1; // W bit
let Inst{21} = 0; // W bit
let Inst{24} = 0; // P bit
let Inst{27-25} = 0b000;
}
@ -747,7 +747,7 @@ class AI3ldshpo<dag oops, dag iops, Format f, InstrItinClass itin,
let Inst{6} = 1; // S bit
let Inst{7} = 1;
let Inst{20} = 1; // L bit
let Inst{21} = 1; // W bit
let Inst{21} = 0; // W bit
let Inst{24} = 0; // P bit
let Inst{27-25} = 0b000;
}
@ -760,7 +760,7 @@ class AI3ldsbpo<dag oops, dag iops, Format f, InstrItinClass itin,
let Inst{6} = 1; // S bit
let Inst{7} = 1;
let Inst{20} = 1; // L bit
let Inst{21} = 1; // W bit
let Inst{21} = 0; // W bit
let Inst{24} = 0; // P bit
let Inst{27-25} = 0b000;
}

24
llvm/lib/Target/ARM/ARMInstrInfo.td
View File

@ -1069,7 +1069,7 @@ def LDRSB_POST: AI3ldsbpo<(outs GPR:$dst, GPR:$base_wb),
"ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb", []>;
}
// LDRT and LDRBT are for disassembly only.
// LDRT, LDRBT, LDRSBT, LDRHT, LDRSHT are for disassembly only.
def LDRT : AI2ldwpo<(outs GPR:$dst, GPR:$base_wb),
(ins GPR:$base, am2offset:$offset), LdFrm, IIC_iLoadru,
@ -1078,8 +1078,26 @@ def LDRT : AI2ldwpo<(outs GPR:$dst, GPR:$base_wb),
}
def LDRBT : AI2ldbpo<(outs GPR:$dst, GPR:$base_wb),
(ins GPR:$base,am2offset:$offset), LdFrm, IIC_iLoadru,
"ldrb", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
(ins GPR:$base,am2offset:$offset), LdFrm, IIC_iLoadru,
"ldrbt", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
let Inst{21} = 1; // overwrite
}
def LDRSBT : AI3ldsbpo<(outs GPR:$dst, GPR:$base_wb),
(ins GPR:$base,am2offset:$offset), LdMiscFrm, IIC_iLoadru,
"ldrsbt", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
let Inst{21} = 1; // overwrite
}
def LDRHT : AI3ldhpo<(outs GPR:$dst, GPR:$base_wb),
(ins GPR:$base, am3offset:$offset), LdMiscFrm, IIC_iLoadru,
"ldrht", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
let Inst{21} = 1; // overwrite
}
def LDRSHT : AI3ldshpo<(outs GPR:$dst, GPR:$base_wb),
(ins GPR:$base,am3offset:$offset), LdMiscFrm, IIC_iLoadru,
"ldrsht", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
let Inst{21} = 1; // overwrite
}