Function Layout, Global Variable Layout and Pooled Constants Layout Reordering

tests_lit/llvm2ice_tests/reorder-functions.ll

Index: tests_lit/llvm2ice_tests/reorder-functions.ll
diff --git a/tests_lit/llvm2ice_tests/reorder-functions.ll b/tests_lit/llvm2ice_tests/reorder-functions.ll
new file mode 100644
index 0000000000000000000000000000000000000000..02af79a6d79da4a26751fe745107f793ea04cff0
--- /dev/null
+++ b/tests_lit/llvm2ice_tests/reorder-functions.ll
@@ -0,0 +1,90 @@
+; This is a smoke test of function reordering.
+
+; RUN: %p2i -i %s --filetype=obj --disassemble --args -O2 \
+; RUN:    -sz-seed=1 -reorder-functions \
+; RUN:    | FileCheck %s --check-prefix=DEFAULTWINDOWSIZE
+; RUN: %p2i -i %s --filetype=obj --disassemble --args -Om1 \
+; RUN:    -sz-seed=1 -reorder-functions \
+; RUN:    | FileCheck %s --check-prefix=DEFAULTWINDOWSIZE
+
+
+; RUN: %p2i -i %s --filetype=obj --disassemble --args -O2 \
+; RUN:    -sz-seed=1 -reorder-functions \
+; RUN:    -reorder-functions-window-size=1 \
+; RUN:    | FileCheck %s --check-prefix=WINDOWSIZE1
+; RUN: %p2i -i %s --filetype=obj --disassemble --args -Om1 \
+; RUN:    -sz-seed=1 -reorder-functions \
+; RUN:    -reorder-functions-window-size=1 \
+; RUN:    | FileCheck %s --check-prefix=WINDOWSIZE1
+
+
+; RUN: %p2i -i %s --filetype=obj --disassemble --args -O2 \
+; RUN:    -sz-seed=1 -reorder-functions \
+; RUN:    -threads=0 \
+; RUN:    | FileCheck %s --check-prefix=SEQUENTIAL
+; RUN: %p2i -i %s --filetype=obj --disassemble --args -Om1 \
+; RUN:    -sz-seed=1 -reorder-functions \
+; RUN:    -threads=0 \
+; RUN:    | FileCheck %s --check-prefix=SEQUENTIAL
+
+
+; RUN: %p2i -i %s --filetype=obj --disassemble --args -O2 \
+; RUN:    -sz-seed=1 -reorder-functions \
+; RUN:    -reorder-functions-window-size=0xffffffff \
+; RUN:    | FileCheck %s --check-prefix=WINDOWSIZEMAX
+; RUN: %p2i -i %s --filetype=obj --disassemble --args -Om1 \
+; RUN:    -sz-seed=1 -reorder-functions \
+; RUN:    -reorder-functions-window-size=0xffffffff \
+; RUN:    | FileCheck %s --check-prefix=WINDOWSIZEMAX
+
+define void @func1() {
+  ret void
+}
+
+define void @func2() {
+  ret void
+}
+
+define void @func3() {
+  ret void
+}
+
+define void @func4() {
+  ret void
+}
+
+define void @func5() {
+  ret void
+}
+
+define void @func6() {
+  ret void
+}
+
+; DEFAULTWINDOWSIZE-LABEL: func4
+; DEFAULTWINDOWSIZE-LABEL: func1
+; DEFAULTWINDOWSIZE-LABEL: func3
+; DEFAULTWINDOWSIZE-LABEL: func6
+; DEFAULTWINDOWSIZE-LABEL: func5
+; DEFAULTWINDOWSIZE-LABEL: func2
+
+; WINDOWSIZE1-LABEL: func1
+; WINDOWSIZE1-LABEL: func2
+; WINDOWSIZE1-LABEL: func3
+; WINDOWSIZE1-LABEL: func4
+; WINDOWSIZE1-LABEL: func5
+; WINDOWSIZE1-LABEL: func6
+
+; SEQUENTIAL-LABEL: func1
+; SEQUENTIAL-LABEL: func2
+; SEQUENTIAL-LABEL: func3
+; SEQUENTIAL-LABEL: func4
+; SEQUENTIAL-LABEL: func5
+; SEQUENTIAL-LABEL: func6
+
+; WINDOWSIZEMAX-LABEL: func4
+; WINDOWSIZEMAX-LABEL: func1
+; WINDOWSIZEMAX-LABEL: func3
+; WINDOWSIZEMAX-LABEL: func6
+; WINDOWSIZEMAX-LABEL: func5
+; WINDOWSIZEMAX-LABEL: func2