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<font size="2"><span style="font-size:11pt">Swapping the order of SP and $amount in the pattern did not work.</span></font><br>
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I checked the output of the compiler with the -print-after-all option and the instruction is present in the last IR dump.<br>
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I noticed that in GenAsmWriter.inc, there is this line of code in the case of my ADS instruction<br>
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<span style="font-family: "Courier New", monospace;">printOperand(MI, 0, O);</span></div>
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If I manually change it to <span style="font-family: "Courier New", monospace;">printOperand(MI, 1, O);</span><span style="font-family: Calibri, Helvetica, sans-serif;">, then it fixes the problem.</span></div>
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<span style="font-family: Calibri, Helvetica, sans-serif;">How can I make tablegen generate a 1 as the 2nd argument of printOperand for this specific instruction?</span><br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> daniel_l_sanders@apple.com <daniel_l_sanders@apple.com> on behalf of Daniel Sanders <daniel_l_sanders@apple.com><br>
<b>Sent:</b> Thursday, December 6, 2018 9:31 AM<br>
<b>To:</b> tstellar@redhat.com<br>
<b>Cc:</b> m m; llvm-dev@lists.llvm.org<br>
<b>Subject:</b> Re: [llvm-dev] New to LLVM. Need help generating assembly</font>
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<blockquote type="cite" class="">
<div class="">On Dec 5, 2018, at 22:15, Tom Stellard via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" class="">llvm-dev@lists.llvm.org</a>> wrote:</div>
<br class="x_Apple-interchange-newline">
<div class=""><span class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; float:none; display:inline!important">On
12/05/2018 07:22 PM, m m via llvm-dev wrote:</span><br class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<blockquote type="cite" class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none">
Hi,<br class="">
I'm new to LLVM and need some help. I defined an instruction to increment the stack pointer by 'amount' (i.e. sp = sp + amount). During assembly generation, the string that gets emitted is "ADS $SP" rather than "ADS 10", for example, if I want to increment
it by 10.<br class="">
<br class="">
Can somebody show me what I'm doing wrong?<br class="">
Thanks.<br class="">
<br class="">
def ADS: F_J<0b100001,(outs),(ins i32imm:$amount),"ADS $amount",[(set SP, (add SP, i32imm:$amount))] > {<br class="">
<br class="">
bits<10> amount;<br class="">
<br class="">
let Inst{9-0} = amount;<br class="">
let isReMaterializable = 1;<br class="">
let mayLoad = 0;<br class="">
let mayStore = 0;<br class="">
let Defs = [SP];<br class="">
let Uses = [SP];<br class="">
}<br class="">
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<br class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<span class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; float:none; display:inline!important">What
does the MCInst dump of this instruction look like? Have you looked</span><br class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<span class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; float:none; display:inline!important">at
YourTargetGenAsmWriter.inc to see which print methods are being called</span><br class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<span class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; float:none; display:inline!important">for
this instruction?</span><br class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<br class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<span class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; float:none; display:inline!important">-Tom</span></div>
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<div>It's also worth checking the output of the compiler with the -print-after-all option to see if your instruction is present in the last IR dump. It's possible that another instruction is being selected instead of this one.</div>
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<blockquote type="cite" class="">
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<blockquote type="cite" class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none">
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