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01bf73c130
This corner case happens when we have an irreducible SCC that is deeply nested. As we work down the tree, the backedge masses start getting smaller and smaller until we reach one that is down to 0. Since we distribute the incoming mass using the backedge masses as weight, the distributor does not allow zero weights. So, we simply ignore them (which will just use the weights of the non-zero nodes). llvm-svn: 247050
156 lines
6.2 KiB
LLVM
156 lines
6.2 KiB
LLVM
; RUN: opt < %s -analyze -block-freq
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define void @fn1(i32* %f) {
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entry:
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%tobool7 = icmp eq i32 undef, 0
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br i1 undef, label %if.end.12, label %for.body.5
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for.inc:
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store i32 undef, i32* %f, align 4
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br label %for.body.5
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for.body.5: ; preds = %for.cond.4.preheader
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br i1 %tobool7, label %for.inc.9, label %for.inc
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for.inc.9: ; preds = %for.body.5
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br i1 %tobool7, label %for.inc.9.1, label %for.inc
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if.end.12: ; preds = %if.end.12, %for.body
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br i1 undef, label %for.end.17, label %for.inc
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for.end.17: ; preds = %entry
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ret void
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for.inc.9.1: ; preds = %for.inc.9
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br i1 %tobool7, label %for.inc.9.2, label %for.inc
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for.inc.9.2: ; preds = %for.inc.9.1
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br i1 %tobool7, label %for.inc.9.3, label %for.inc
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for.inc.9.3: ; preds = %for.inc.9.2
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br i1 %tobool7, label %for.inc.9.4, label %for.inc
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for.inc.9.4: ; preds = %for.inc.9.3
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br i1 %tobool7, label %for.inc.9.5, label %for.inc
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for.inc.9.5: ; preds = %for.inc.9.4
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br i1 %tobool7, label %for.inc.9.6, label %for.inc
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for.inc.9.6: ; preds = %for.inc.9.5
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br i1 %tobool7, label %for.inc.9.7, label %for.inc
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for.inc.9.7: ; preds = %for.inc.9.6
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br i1 %tobool7, label %for.inc.9.8, label %for.inc
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for.inc.9.8: ; preds = %for.inc.9.7
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br i1 %tobool7, label %for.inc.9.9, label %for.inc
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for.inc.9.9: ; preds = %for.inc.9.8
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br i1 %tobool7, label %for.inc.9.10, label %for.inc
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for.inc.9.10: ; preds = %for.inc.9.9
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br i1 %tobool7, label %for.inc.9.11, label %for.inc
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for.inc.9.11: ; preds = %for.inc.9.10
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br i1 %tobool7, label %for.inc.9.12, label %for.inc
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for.inc.9.12: ; preds = %for.inc.9.11
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br i1 %tobool7, label %for.inc.9.13, label %for.inc
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for.inc.9.13: ; preds = %for.inc.9.12
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br i1 %tobool7, label %for.inc.9.14, label %for.inc
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for.inc.9.14: ; preds = %for.inc.9.13
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br i1 %tobool7, label %for.inc.9.15, label %for.inc
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for.inc.9.15: ; preds = %for.inc.9.14
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br i1 %tobool7, label %for.inc.9.16, label %for.inc
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for.inc.9.16: ; preds = %for.inc.9.15
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br i1 %tobool7, label %for.inc.9.17, label %for.inc
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for.inc.9.17: ; preds = %for.inc.9.16
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br i1 %tobool7, label %for.inc.9.18, label %for.inc
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for.inc.9.18: ; preds = %for.inc.9.17
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br i1 %tobool7, label %for.inc.9.19, label %for.inc
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for.inc.9.19: ; preds = %for.inc.9.18
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br i1 %tobool7, label %for.inc.9.20, label %for.inc
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for.inc.9.20: ; preds = %for.inc.9.19
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br i1 %tobool7, label %for.inc.9.21, label %for.inc
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for.inc.9.21: ; preds = %for.inc.9.20
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br i1 %tobool7, label %for.inc.9.22, label %for.inc
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for.inc.9.22: ; preds = %for.inc.9.21
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br i1 %tobool7, label %for.inc.9.23, label %for.inc
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for.inc.9.23: ; preds = %for.inc.9.22
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br i1 %tobool7, label %for.inc.9.24, label %for.inc
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for.inc.9.24: ; preds = %for.inc.9.23
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br i1 %tobool7, label %for.inc.9.25, label %for.inc
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for.inc.9.25: ; preds = %for.inc.9.24
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br i1 %tobool7, label %for.inc.9.26, label %for.inc
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for.inc.9.26: ; preds = %for.inc.9.25
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br i1 %tobool7, label %for.inc.9.27, label %for.inc
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for.inc.9.27: ; preds = %for.inc.9.26
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br i1 %tobool7, label %for.inc.9.28, label %for.inc
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for.inc.9.28: ; preds = %for.inc.9.27
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br i1 %tobool7, label %for.inc.9.29, label %for.inc
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for.inc.9.29: ; preds = %for.inc.9.28
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br i1 %tobool7, label %for.inc.9.30, label %for.inc
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for.inc.9.30: ; preds = %for.inc.9.29
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br i1 %tobool7, label %for.inc.9.31, label %for.inc
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for.inc.9.31: ; preds = %for.inc.9.30
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br i1 %tobool7, label %for.inc.9.32, label %for.inc
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for.inc.9.32: ; preds = %for.inc.9.31
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br i1 %tobool7, label %for.inc.9.33, label %for.inc
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for.inc.9.33: ; preds = %for.inc.9.32
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br i1 %tobool7, label %for.inc.9.34, label %for.inc
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for.inc.9.34: ; preds = %for.inc.9.33
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br i1 %tobool7, label %for.inc.9.35, label %for.inc
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for.inc.9.35: ; preds = %for.inc.9.34
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br i1 %tobool7, label %for.inc.9.36, label %for.inc
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for.inc.9.36: ; preds = %for.inc.9.35
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br i1 %tobool7, label %for.inc.9.37, label %for.inc
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for.inc.9.37: ; preds = %for.inc.9.36
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br i1 %tobool7, label %for.inc.9.38, label %for.inc
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for.inc.9.38: ; preds = %for.inc.9.37
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br i1 %tobool7, label %for.inc.9.39, label %for.inc
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for.inc.9.39: ; preds = %for.inc.9.38
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br i1 %tobool7, label %for.inc.9.40, label %for.inc
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for.inc.9.40: ; preds = %for.inc.9.39
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br i1 %tobool7, label %for.inc.9.41, label %for.inc
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for.inc.9.41: ; preds = %for.inc.9.40
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br i1 %tobool7, label %for.inc.9.42, label %for.inc
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for.inc.9.42: ; preds = %for.inc.9.41
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br i1 %tobool7, label %for.inc.9.43, label %for.inc
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for.inc.9.43: ; preds = %for.inc.9.42
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br i1 %tobool7, label %if.end.12, label %for.inc
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}
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