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6d3e9c36e0
This patch introduces the heat coloring of the Control Flow Graph which is based on the relative "hotness" of each BB. The patch is a part of sequence of three patches, related to graphs Heat Coloring. Reviewers: rcorcs, apilipenko, davidxl, sfertile, fedor.sergeev, eraman, bollu Differential Revision: https://reviews.llvm.org/D77161
20 lines
479 B
LLVM
20 lines
479 B
LLVM
;RUN: opt < %s -analyze -dot-cfg -cfg-weights -cfg-dot-filename-prefix=%t 2>/dev/null
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;RUN: FileCheck %s -input-file=%t.f.dot
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define void @f(i32) {
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entry:
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%check = icmp sgt i32 %0, 0
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br i1 %check, label %if, label %exit, !prof !0
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; CHECK: label="0.50%"
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; CHECK-NOT: ["];
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if: ; preds = %entry
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br label %exit
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; CHECK: label="99.50%"
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; CHECK-NOT: ["];
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exit: ; preds = %entry, %if
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ret void
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}
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!0 = !{!"branch_weights", i32 1, i32 200}
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