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llvm-project/llvm/test/Other/cfg-printer-branch-weights.ll

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[CFGPrinter] Adding heat coloring to CFGPrinter 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
2020-04-01 02:43:25 +08:00
;RUN: opt < %s -analyze -dot-cfg -cfg-weights -cfg-raw-weights -cfg-dot-filename-prefix=%t 2>/dev/null
[CFG Printer] Add support for writing the dot files with a custom prefix. Use this to direct these files to a specific location in the test suite so that we don't write files out to random directories (or fail if the working directory isn't writable). llvm-svn: 344014
2018-10-09 12:30:23 +08:00
;RUN: FileCheck %s -input-file=%t.f.dot
Fix incorrect Twine usage in CFGPrinter CFGPrinter (-view-cfg, -dot-cfg) invokes an undefined behaviour (dangling pointer to rvalue) on IR files with branch weights. This patch fixes the problem caused by Twine initialization and string conversion split into two statements. This change fixes the bug 37019. A similar patch to this problem was provided in the llvmlite project Patch by mcopik (Marcin Copik). Differential Revision: https://reviews.llvm.org/D52933 llvm-svn: 343984
2018-10-09 01:29:39 +08:00
define void @f(i32) {
entry:
%check = icmp sgt i32 %0, 0
br i1 %check, label %if, label %exit, !prof !0
[CFGPrinter] Adding heat coloring to CFGPrinter 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
2020-04-01 02:43:25 +08:00
; CHECK: label="W:7"
Fix incorrect Twine usage in CFGPrinter CFGPrinter (-view-cfg, -dot-cfg) invokes an undefined behaviour (dangling pointer to rvalue) on IR files with branch weights. This patch fixes the problem caused by Twine initialization and string conversion split into two statements. This change fixes the bug 37019. A similar patch to this problem was provided in the llvmlite project Patch by mcopik (Marcin Copik). Differential Revision: https://reviews.llvm.org/D52933 llvm-svn: 343984
2018-10-09 01:29:39 +08:00
; CHECK-NOT: ["];
if: ; preds = %entry
br label %exit
[CFGPrinter] Adding heat coloring to CFGPrinter 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
2020-04-01 02:43:25 +08:00
; CHECK: label="W:1600"
Fix incorrect Twine usage in CFGPrinter CFGPrinter (-view-cfg, -dot-cfg) invokes an undefined behaviour (dangling pointer to rvalue) on IR files with branch weights. This patch fixes the problem caused by Twine initialization and string conversion split into two statements. This change fixes the bug 37019. A similar patch to this problem was provided in the llvmlite project Patch by mcopik (Marcin Copik). Differential Revision: https://reviews.llvm.org/D52933 llvm-svn: 343984
2018-10-09 01:29:39 +08:00
; CHECK-NOT: ["];
exit: ; preds = %entry, %if
ret void
}
!0 = !{!"branch_weights", i32 1, i32 200}