diff options
Diffstat (limited to 'test/Analysis/Profiling/load-branch-weights-switches.ll')
-rw-r--r-- | test/Analysis/Profiling/load-branch-weights-switches.ll | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/test/Analysis/Profiling/load-branch-weights-switches.ll b/test/Analysis/Profiling/load-branch-weights-switches.ll deleted file mode 100644 index 5587c71..0000000 --- a/test/Analysis/Profiling/load-branch-weights-switches.ll +++ /dev/null @@ -1,165 +0,0 @@ -; RUN: opt -insert-edge-profiling -o %t1 < %s -; RUN: rm -f %t1.prof_data -; RUN: lli %defaultjit -load %llvmshlibdir/libprofile_rt%shlibext %t1 \ -; RUN: -llvmprof-output %t1.prof_data -; RUN: opt -profile-file %t1.prof_data -profile-metadata-loader -S -o - < %s \ -; RUN: | FileCheck %s -; RUN: rm -f %t1.prof_data - -; FIXME: profile_rt.dll could be built on win32. -; REQUIRES: loadable_module - -;; func_switch - Test branch probabilities for a switch instruction with an -;; even chance of taking each case (or no case). -define i32 @func_switch(i32 %N) nounwind uwtable { -entry: - %retval = alloca i32, align 4 - %N.addr = alloca i32, align 4 - store i32 %N, i32* %N.addr, align 4 - %0 = load i32* %N.addr, align 4 - %rem = srem i32 %0, 4 - switch i32 %rem, label %sw.epilog [ - i32 0, label %sw.bb - i32 1, label %sw.bb1 - i32 2, label %sw.bb2 - ] -; CHECK: ], !prof !0 - -sw.bb: - store i32 5, i32* %retval - br label %return - -sw.bb1: - store i32 6, i32* %retval - br label %return - -sw.bb2: - store i32 7, i32* %retval - br label %return - -sw.epilog: - store i32 8, i32* %retval - br label %return - -return: - %1 = load i32* %retval - ret i32 %1 -} - -;; func_switch_switch - Test branch probabilities in a switch-instruction that -;; leads to further switch instructions. The first-tier switch occludes some -;; possibilities in the second-tier switches, leading to some branches having a -;; 0 probability. -define i32 @func_switch_switch(i32 %N) nounwind uwtable { -entry: - %retval = alloca i32, align 4 - %N.addr = alloca i32, align 4 - store i32 %N, i32* %N.addr, align 4 - %0 = load i32* %N.addr, align 4 - %rem = srem i32 %0, 2 - switch i32 %rem, label %sw.default11 [ - i32 0, label %sw.bb - i32 1, label %sw.bb5 - ] -; CHECK: ], !prof !1 - -sw.bb: - %1 = load i32* %N.addr, align 4 - %rem1 = srem i32 %1, 4 - switch i32 %rem1, label %sw.default [ - i32 0, label %sw.bb2 - i32 1, label %sw.bb3 - i32 2, label %sw.bb4 - ] -; CHECK: ], !prof !2 - -sw.bb2: - store i32 5, i32* %retval - br label %return - -sw.bb3: - store i32 6, i32* %retval - br label %return - -sw.bb4: - store i32 7, i32* %retval - br label %return - -sw.default: - store i32 8, i32* %retval - br label %return - -sw.bb5: - %2 = load i32* %N.addr, align 4 - %rem6 = srem i32 %2, 4 - switch i32 %rem6, label %sw.default10 [ - i32 0, label %sw.bb7 - i32 1, label %sw.bb8 - i32 2, label %sw.bb9 - ] -; CHECK: ], !prof !3 - -sw.bb7: - store i32 9, i32* %retval - br label %return - -sw.bb8: - store i32 10, i32* %retval - br label %return - -sw.bb9: - store i32 11, i32* %retval - br label %return - -sw.default10: - store i32 12, i32* %retval - br label %return - -sw.default11: - store i32 13, i32* %retval - br label %return - -return: - %3 = load i32* %retval - ret i32 %3 -} - -define i32 @main(i32 %argc, i8** %argv) nounwind uwtable { -entry: - %retval = alloca i32, align 4 - %argc.addr = alloca i32, align 4 - %argv.addr = alloca i8**, align 8 - %loop = alloca i32, align 4 - store i32 0, i32* %retval - store i32 0, i32* %loop, align 4 - br label %for.cond - -for.cond: - %0 = load i32* %loop, align 4 - %cmp = icmp slt i32 %0, 4000 - br i1 %cmp, label %for.body, label %for.end -; CHECK: br i1 %cmp, label %for.body, label %for.end, !prof !4 - -for.body: - %1 = load i32* %loop, align 4 - %call = call i32 @func_switch(i32 %1) - %2 = load i32* %loop, align 4 - %call1 = call i32 @func_switch_switch(i32 %2) - br label %for.inc - -for.inc: - %3 = load i32* %loop, align 4 - %inc = add nsw i32 %3, 1 - store i32 %inc, i32* %loop, align 4 - br label %for.cond - -for.end: - ret i32 0 -} - -; CHECK: !0 = metadata !{metadata !"branch_weights", i32 1000, i32 1000, i32 1000, i32 1000} -; CHECK: !1 = metadata !{metadata !"branch_weights", i32 0, i32 2000, i32 2000} -; CHECK: !2 = metadata !{metadata !"branch_weights", i32 0, i32 1000, i32 0, i32 1000} -; CHECK: !3 = metadata !{metadata !"branch_weights", i32 1000, i32 0, i32 1000, i32 0} -; CHECK: !4 = metadata !{metadata !"branch_weights", i32 4000, i32 1} -; CHECK-NOT: !5 |