derek.holloway
7502bf64a4
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78 lines
3.1 KiB
LLVM
78 lines
3.1 KiB
LLVM
; RUN: llc -O3 -verify-machineinstrs < %s -o /dev/null
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; REQUIRES: asserts
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;
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; This is a compile-only regression test (asserts build) for Hexagon.
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define i32 @foo(ptr nocapture readnone %x, i32 %n, ptr nocapture readonly %p,
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ptr nocapture readonly %q, ptr %b) {
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entry:
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%cmp = icmp eq i32 %n, 0
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br i1 %cmp, label %return, label %if.end
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if.end: ; preds = %entry
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%div = lshr i32 %n, 3
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%cmp149 = icmp eq i32 %div, 0
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br i1 %cmp149, label %for.end, label %for.body.preheader
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for.body.preheader: ; preds = %if.end
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.inc
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%arrayidx.phi = phi ptr [ %arrayidx.inc, %for.inc ], [ %p, %for.body.preheader ]
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%arrayidx2.phi = phi ptr [ %arrayidx2.inc, %for.inc ], [ %q, %for.body.preheader ]
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%i.050 = phi i32 [ %inc, %for.inc ], [ 0, %for.body.preheader ]
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%0 = load i8, ptr %arrayidx.phi, align 1
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%1 = load i8, ptr %arrayidx2.phi, align 1
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%cmp4 = icmp eq i8 %0, %1
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br i1 %cmp4, label %for.inc, label %for.end.loopexit
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for.inc: ; preds = %for.body
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%arrayidx2.inc = getelementptr i8, ptr %arrayidx2.phi, i32 1
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%arrayidx.inc = getelementptr i8, ptr %arrayidx.phi, i32 1
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%inc = add nuw nsw i32 %i.050, 1
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%cmp1 = icmp ult i32 %inc, %div
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br i1 %cmp1, label %for.body, label %for.end.loopexit
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for.end.loopexit: ; preds = %for.body, %for.inc
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%i.0.lcssa.ph = phi i32 [ %i.050, %for.body ], [ %inc, %for.inc ]
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %if.end
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%i.0.lcssa = phi i32 [ 0, %if.end ], [ %i.0.lcssa.ph, %for.end.loopexit ]
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%cmp8 = icmp eq i32 %i.0.lcssa, %div
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br i1 %cmp8, label %if.end30, label %if.then10
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if.then10: ; preds = %for.end
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%rem = and i32 %n, 7
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%cmp11 = icmp eq i32 %rem, 0
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br i1 %cmp11, label %return, label %if.end14
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if.end14: ; preds = %if.then10
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%sub = sub nsw i32 8, %rem
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%shl = shl i32 1, %sub
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%sub16 = add i32 %shl, 255
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%arrayidx18 = getelementptr inbounds i8, ptr %p, i32 %i.0.lcssa
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%2 = load i8, ptr %arrayidx18, align 1
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%sub16.not = or i32 %sub16, -256
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%neg = xor i32 %sub16.not, 255
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%arrayidx21 = getelementptr inbounds i8, ptr %q, i32 %i.0.lcssa
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%3 = load i8, ptr %arrayidx21, align 1
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%4 = xor i8 %3, %2
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%5 = zext i8 %4 to i32
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%6 = and i32 %5, %neg
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%cmp26 = icmp eq i32 %6, 0
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br i1 %cmp26, label %return, label %if.end30
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if.end30: ; preds = %for.end, %if.end14
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%cmp31 = icmp eq ptr %b, null
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br i1 %cmp31, label %return, label %if.then33
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if.then33: ; preds = %if.end30
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store i8 0, ptr %b, align 1
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br label %return
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return: ; preds = %if.end30, %if.then33, %if.end14, %if.then10, %entry
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%retval.0 = phi i32 [ 0, %entry ], [ 1, %if.then10 ], [ 1, %if.end14 ], [ 0, %if.then33 ], [ 0, %if.end30 ]
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ret i32 %retval.0
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}
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