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https://github.com/RPCS3/llvm-mirror.git
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719b0399a8
since bpf instruction set was introduced people learned to read and understand kernel verifier output whereas llvm asm output stayed obscure and unknown. Convert llvm to emit assembler text similar to kernel to avoid this discrepancy Signed-off-by: Alexei Starovoitov <ast@kernel.org> llvm-svn: 287300
112 lines
5.2 KiB
LLVM
112 lines
5.2 KiB
LLVM
; RUN: llc < %s -march=bpfel | FileCheck %s
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define zeroext i16 @add(i16* nocapture %a, i16 zeroext %n) nounwind readonly {
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entry:
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%cmp8 = icmp eq i16 %n, 0 ; <i1> [#uses=1]
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br i1 %cmp8, label %for.end, label %for.body
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for.body: ; preds = %for.body, %entry
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%i.010 = phi i16 [ 0, %entry ], [ %inc, %for.body ] ; <i16> [#uses=2]
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%sum.09 = phi i16 [ 0, %entry ], [ %add, %for.body ] ; <i16> [#uses=1]
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%arrayidx = getelementptr i16, i16* %a, i16 %i.010 ; <i16*> [#uses=1]
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; CHECK-LABEL: add:
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; CHECK: r{{[0-9]+}} += r{{[0-9]+}}
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%tmp4 = load i16, i16* %arrayidx ; <i16> [#uses=1]
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%add = add i16 %tmp4, %sum.09 ; <i16> [#uses=2]
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%inc = add i16 %i.010, 1 ; <i16> [#uses=2]
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%exitcond = icmp eq i16 %inc, %n ; <i1> [#uses=1]
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body, %entry
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%sum.0.lcssa = phi i16 [ 0, %entry ], [ %add, %for.body ] ; <i16> [#uses=1]
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ret i16 %sum.0.lcssa
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}
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define zeroext i16 @sub(i16* nocapture %a, i16 zeroext %n) nounwind readonly {
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entry:
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%cmp8 = icmp eq i16 %n, 0 ; <i1> [#uses=1]
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br i1 %cmp8, label %for.end, label %for.body
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for.body: ; preds = %for.body, %entry
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%i.010 = phi i16 [ 0, %entry ], [ %inc, %for.body ] ; <i16> [#uses=2]
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%sum.09 = phi i16 [ 0, %entry ], [ %add, %for.body ] ; <i16> [#uses=1]
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%arrayidx = getelementptr i16, i16* %a, i16 %i.010 ; <i16*> [#uses=1]
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; CHECK-LABEL: sub:
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; CHECK: r{{[0-9]+}} -= r{{[0-9]+}}
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%tmp4 = load i16, i16* %arrayidx ; <i16> [#uses=1]
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%add = sub i16 %tmp4, %sum.09 ; <i16> [#uses=2]
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%inc = add i16 %i.010, 1 ; <i16> [#uses=2]
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%exitcond = icmp eq i16 %inc, %n ; <i1> [#uses=1]
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body, %entry
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%sum.0.lcssa = phi i16 [ 0, %entry ], [ %add, %for.body ] ; <i16> [#uses=1]
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ret i16 %sum.0.lcssa
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}
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define zeroext i16 @or(i16* nocapture %a, i16 zeroext %n) nounwind readonly {
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entry:
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%cmp8 = icmp eq i16 %n, 0 ; <i1> [#uses=1]
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br i1 %cmp8, label %for.end, label %for.body
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for.body: ; preds = %for.body, %entry
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%i.010 = phi i16 [ 0, %entry ], [ %inc, %for.body ] ; <i16> [#uses=2]
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%sum.09 = phi i16 [ 0, %entry ], [ %add, %for.body ] ; <i16> [#uses=1]
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%arrayidx = getelementptr i16, i16* %a, i16 %i.010 ; <i16*> [#uses=1]
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; CHECK-LABEL: or:
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; CHECK: r{{[0-9]+}} |= r{{[0-9]+}}
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%tmp4 = load i16, i16* %arrayidx ; <i16> [#uses=1]
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%add = or i16 %tmp4, %sum.09 ; <i16> [#uses=2]
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%inc = add i16 %i.010, 1 ; <i16> [#uses=2]
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%exitcond = icmp eq i16 %inc, %n ; <i1> [#uses=1]
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body, %entry
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%sum.0.lcssa = phi i16 [ 0, %entry ], [ %add, %for.body ] ; <i16> [#uses=1]
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ret i16 %sum.0.lcssa
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}
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define zeroext i16 @xor(i16* nocapture %a, i16 zeroext %n) nounwind readonly {
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entry:
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%cmp8 = icmp eq i16 %n, 0 ; <i1> [#uses=1]
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br i1 %cmp8, label %for.end, label %for.body
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for.body: ; preds = %for.body, %entry
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%i.010 = phi i16 [ 0, %entry ], [ %inc, %for.body ] ; <i16> [#uses=2]
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%sum.09 = phi i16 [ 0, %entry ], [ %add, %for.body ] ; <i16> [#uses=1]
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%arrayidx = getelementptr i16, i16* %a, i16 %i.010 ; <i16*> [#uses=1]
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; CHECK-LABEL: xor:
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; CHECK: r{{[0-9]+}} ^= r{{[0-9]+}}
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%tmp4 = load i16, i16* %arrayidx ; <i16> [#uses=1]
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%add = xor i16 %tmp4, %sum.09 ; <i16> [#uses=2]
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%inc = add i16 %i.010, 1 ; <i16> [#uses=2]
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%exitcond = icmp eq i16 %inc, %n ; <i1> [#uses=1]
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body, %entry
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%sum.0.lcssa = phi i16 [ 0, %entry ], [ %add, %for.body ] ; <i16> [#uses=1]
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ret i16 %sum.0.lcssa
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}
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define zeroext i16 @and(i16* nocapture %a, i16 zeroext %n) nounwind readonly {
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entry:
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%cmp8 = icmp eq i16 %n, 0 ; <i1> [#uses=1]
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br i1 %cmp8, label %for.end, label %for.body
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for.body: ; preds = %for.body, %entry
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%i.010 = phi i16 [ 0, %entry ], [ %inc, %for.body ] ; <i16> [#uses=2]
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%sum.09 = phi i16 [ 0, %entry ], [ %add, %for.body ] ; <i16> [#uses=1]
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%arrayidx = getelementptr i16, i16* %a, i16 %i.010 ; <i16*> [#uses=1]
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; CHECK-LABEL: and:
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; CHECK: r{{[0-9]+}} &= r{{[0-9]+}}
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%tmp4 = load i16, i16* %arrayidx ; <i16> [#uses=1]
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%add = and i16 %tmp4, %sum.09 ; <i16> [#uses=2]
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%inc = add i16 %i.010, 1 ; <i16> [#uses=2]
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%exitcond = icmp eq i16 %inc, %n ; <i1> [#uses=1]
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body, %entry
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%sum.0.lcssa = phi i16 [ 0, %entry ], [ %add, %for.body ] ; <i16> [#uses=1]
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ret i16 %sum.0.lcssa
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}
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