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| author | Cliff Click <cliffc@acm.org> | 2023-11-11 23:17:22 +0000 |
|---|---|---|
| committer | Cliff Click <cliffc@acm.org> | 2026-10-08 16:52:27 -0700 |
| commit | b6d5e06a2099749e867d3068aec9d555ab2fe693 (patch) | |
| tree | 6c07fa52ed381198c86c2fe657195a2805875a1d /docs/chapter06/06-graph4-nonconst.gv | |
| parent | f5ad15e3699c0d07ab2b06865f3a8ae209d021d0 (diff) | |
| download | Simple-b6d5e06a2099749e867d3068aec9d555ab2fe693.tar.gz Simple-b6d5e06a2099749e867d3068aec9d555ab2fe693.zip | |
Chapter 6: Peepholes for If
Co-authored-by: Dibyendu Majumdar <mobile@majumdar.org.uk>
Co-authored-by: Thalia Archibald <thalia@archibald.dev>
Co-authored-by: Yichen Yan <oraluben@outlook.com>
Co-authored-by: Hsiang-Ying Fu <66062782+fuhsnn@users.noreply.github.com>
Co-authored-by: Symious <14933944+symious@users.noreply.github.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: tannal <tannal2409@gmail.com>
Co-authored-by: hadha <helsgithub15@gmail.com>
Co-authored-by: fuhsnn <66062782+fuhsnn@users.noreply.github.com>
Co-authored-by: Tamás Hadházy <85063808+Hels15@users.noreply.github.com>
Co-authored-by: Tamas Hadhazy <helsgithub15@gmail.com>
Co-authored-by: RobertObkircher <robert.obkircher@gmail.com>
Co-authored-by: Robert Obkircher <robert.obkircher@gmail.com>
Co-authored-by: Jun Kawasaki <jun784@gmail.com>
Diffstat (limited to 'docs/chapter06/06-graph4-nonconst.gv')
| -rw-r--r-- | docs/chapter06/06-graph4-nonconst.gv | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/docs/chapter06/06-graph4-nonconst.gv b/docs/chapter06/06-graph4-nonconst.gv new file mode 100644 index 00000000..b8899b48 --- /dev/null +++ b/docs/chapter06/06-graph4-nonconst.gv @@ -0,0 +1,122 @@ +digraph chapter06 { +/* +int a = 0; +int b = 1; +int c = 0; +if( arg ) { + a = 1; + if( arg==2 ) { c=2; } else { c=3; } + if( arg ) { b = 2; } + else b = 3; +} +return a+b+c; + +*/ + rankdir=BT; + ordering="in"; + concentrate="true"; + subgraph cluster_Nodes { + Start2 [ shape=plaintext label=< + <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4"> + <TR><TD BGCOLOR="yellow">Start</TD></TR> + <TR><TD> + <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0"> + <TR><TD PORT="p0" BGCOLOR="yellow">$ctrl</TD><TD PORT="p1">arg</TD></TR> + </TABLE> + </TD></TR> + </TABLE>> + ]; + Stop3 [ shape=box style=filled fillcolor=yellow label="Stop" ]; + Con_6 [ label="#0" ]; + Con_7 [ label="#1" ]; + Con_8 [ label="#0" ]; + If9 [ shape=plaintext label=< + <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4"> + <TR><TD BGCOLOR="yellow">If</TD></TR> + <TR><TD> + <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0"> + <TR><TD PORT="p0" BGCOLOR="yellow">True</TD><TD PORT="p1" BGCOLOR="yellow">False</TD></TR> + </TABLE> + </TD></TR> + </TABLE>> + ]; + Con_13 [ label="#1" ]; + Con_14 [ label="#2" ]; + EQNode15 [ label="==" ]; + If16 [ shape=plaintext label=< + <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4"> + <TR><TD BGCOLOR="yellow">If</TD></TR> + <TR><TD> + <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0"> + <TR><TD PORT="p0" BGCOLOR="yellow">True</TD><TD PORT="p1" BGCOLOR="yellow">False</TD></TR> + </TABLE> + </TD></TR> + </TABLE>> + ]; + Con_20 [ label="#2" ]; + Con_21 [ label="#3" ]; + Region22 [ shape=box style=filled fillcolor=yellow label="Region" ]; + Phi_c23 [ style=filled fillcolor=lightyellow label="φ_c" ]; + If24 [ shape=plaintext label=< + <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4"> + <TR><TD BGCOLOR="yellow">If</TD></TR> + <TR><TD> + <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0"> + <TR><TD PORT="p0" BGCOLOR="yellow">True</TD><TD PORT="p1" BGCOLOR="yellow">False</TD></TR> + </TABLE> + </TD></TR> + </TABLE>> + ]; + Con_28 [ label="#2" ]; + Con_29 [ label="#3" ]; + Region30 [ shape=box style=filled fillcolor=yellow label="Region" ]; + Phi_b31 [ style=filled fillcolor=lightyellow label="φ_b" ]; + Region32 [ shape=box style=filled fillcolor=yellow label="Region" ]; + Phi_a33 [ style=filled fillcolor=lightyellow label="φ_a" ]; + Phi_b34 [ style=filled fillcolor=lightyellow label="φ_b" ]; + Phi_c35 [ style=filled fillcolor=lightyellow label="φ_c" ]; + Add36 [ label="+" ]; + Add37 [ label="+" ]; + Return38 [ shape=box style=filled fillcolor=yellow label="Return" ]; + { rank=same; Region22;Phi_c23;} + { rank=same; Region30;Phi_b31;} + { rank=same; Region32;Phi_c35;Phi_a33;Phi_b34;} + } + edge [ fontname=Helvetica, fontsize=8 ]; + Stop3 -> Return38[taillabel=0 color=red]; + If9 -> Start2:p0[taillabel=0 color=red]; + If9 -> Start2:p1[taillabel=1]; + EQNode15 -> Start2:p1[taillabel=1]; + EQNode15 -> Con_14[taillabel=2]; + If16 -> If9:p0[taillabel=0 color=red]; + If16 -> EQNode15[taillabel=1]; + Region22 -> If16:p0[taillabel=1 color=red]; + Region22 -> If16:p1[taillabel=2 color=red]; + Phi_c23 -> Region22 [style=dotted taillabel=0]; + Phi_c23 -> Con_20[taillabel=1]; + Phi_c23 -> Con_21[taillabel=2]; + If24 -> Region22[taillabel=0 color=red]; + If24 -> Start2:p1[taillabel=1]; + Region30 -> If24:p0[taillabel=1 color=red]; + Region30 -> If24:p1[taillabel=2 color=red]; + Phi_b31 -> Region30 [style=dotted taillabel=0]; + Phi_b31 -> Con_28[taillabel=1]; + Phi_b31 -> Con_29[taillabel=2]; + Region32 -> Region30[taillabel=1 color=red]; + Region32 -> If9:p1[taillabel=2 color=red]; + Phi_a33 -> Region32 [style=dotted taillabel=0]; + Phi_a33 -> Con_13[taillabel=1]; + Phi_a33 -> Con_6[taillabel=2]; + Phi_b34 -> Region32 [style=dotted taillabel=0]; + Phi_b34 -> Phi_b31[taillabel=1]; + Phi_b34 -> Con_7[taillabel=2]; + Phi_c35 -> Region32 [style=dotted taillabel=0]; + Phi_c35 -> Phi_c23[taillabel=1]; + Phi_c35 -> Con_8[taillabel=2]; + Add36 -> Phi_c35[taillabel=1]; + Add36 -> Phi_b34[taillabel=2]; + Add37 -> Add36[taillabel=1]; + Add37 -> Phi_a33[taillabel=2]; + Return38 -> Region32[taillabel=0 color=red]; + Return38 -> Add37[taillabel=1]; +} |