<div dir="ltr"><div>That one line change doesn't look like it handles multiletter extension names correctly. For example, Zbf contains "f".</div><div><br><div><div><div dir="ltr" data-smartmail="gmail_signature">~Craig</div></div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jun 7, 2021 at 8:13 PM Ben Shi via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="line-height:1.7;color:rgb(0,0,0);font-size:14px;font-family:Arial"><div style="margin:0px">Hello,</div><div style="margin:0px"><br></div><div style="margin:0px">In the clang's riscv driver,</div><div style="margin:0px"><a href="https://github.com/llvm/llvm-project/blob/main/clang/lib/Driver/ToolChains/Arch/RISCV.cpp" target="_blank">https://github.com/llvm/llvm-project/blob/main/clang/lib/Driver/ToolChains/Arch/RISCV.cpp</a> </div><div style="margin:0px"><br></div><div style="margin:0px">the default abi is fomulated according to arch if no explicit -mabi is specified.</div><div style="margin:0px"><br></div><div style="margin:0px">Is it possible to set the default abi to ilp32f for -march=rv32imacf. For my exployer's chip, HW F is used while SW D is used. Each time I have to write "-march=rv32imacf -mabi=ilp32f“， can it be simplified to only "-march=imacf" ? Just adding a line is enough.</div><div style="margin:0px"><br></div><div style="margin:0px"><span style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">if</span><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap"> (MArch.</span><span style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">substr</span><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">(</span><span style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">4</span><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">).</span><span style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">contains_lower</span><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">(</span><span style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap"><span style="box-sizing:border-box">"f</span><span style="box-sizing:border-box">"</span></span><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">) && !</span><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">MArch.</span><span style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">substr</span><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">(</span><span style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">4</span><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">).</span><span style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">contains_lower</span><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">(</span><span style="box-sizing:border-box;font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap"><span style="box-sizing:border-box">"d</span><span style="box-sizing:border-box">"</span></span><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">)</span><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">)</span></div><div style="margin:0px"><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap">  return "ilp32f";</span></div><div style="margin:0px"><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap"><br></span></div><div style="margin:0px"><font color="#24292e" face="SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace"><span style="font-size:12px;white-space:pre-wrap">Can I submit a patch to fix it?</span></font></div><div style="margin:0px"><font color="#24292e" face="SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace"><span style="font-size:12px;white-space:pre-wrap"><br></span></font></div><div style="margin:0px"><font color="#24292e" face="SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace"><span style="font-size:12px;white-space:pre-wrap">Ben </span></font></div><div style="margin:0px"><span style="color:rgb(36,41,46);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:12px;white-space:pre-wrap"><br></span></div></div>_______________________________________________<br>
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</blockquote></div>