; RUN: opt -insert-edge-profiling -o %t1 < %s ; RUN: rm -f %t1.prof_data ; RUN: lli -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_mod - Branch taken 6 times in 7. define i32 @func_mod(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, 7 %tobool = icmp ne i32 %rem, 0 br i1 %tobool, label %if.then, label %if.else ; CHECK: br i1 %tobool, label %if.then, label %if.else, !prof !0 if.then: store i32 1, i32* %retval br label %return if.else: store i32 0, i32* %retval br label %return return: %1 = load i32* %retval ret i32 %1 } ;; func_const_true - conditional branch which 100% taken probability. define i32 @func_const_true(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 %cmp = icmp eq i32 %0, 1 br i1 %cmp, label %if.then, label %if.end ; CHECK: br i1 %cmp, label %if.then, label %if.end, !prof !1 if.then: store i32 1, i32* %retval br label %return if.end: store i32 0, i32* %retval br label %return return: %1 = load i32* %retval ret i32 %1 } ;; func_const_true - conditional branch which 100% not-taken probability. define i32 @func_const_false(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 %cmp = icmp eq i32 %0, 1 br i1 %cmp, label %if.then, label %if.end ; CHECK: br i1 %cmp, label %if.then, label %if.end, !prof !2 if.then: store i32 1, i32* %retval br label %return if.end: store i32 0, i32* %retval br label %return return: %1 = load i32* %retval ret i32 %1 } 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, 7000 br i1 %cmp, label %for.body, label %for.end ; CHECK: br i1 %cmp, label %for.body, label %for.end, !prof !3 for.body: %1 = load i32* %loop, align 4 %call = call i32 @func_mod(i32 %1) br label %for.inc for.inc: %2 = load i32* %loop, align 4 %inc = add nsw i32 %2, 1 store i32 %inc, i32* %loop, align 4 br label %for.cond for.end: %call1 = call i32 @func_const_true(i32 1) %call2 = call i32 @func_const_false(i32 0) ret i32 0 } ; CHECK: !0 = metadata !{metadata !"branch_weights", i32 6000, i32 1000} ; CHECK: !1 = metadata !{metadata !"branch_weights", i32 1, i32 0} ; CHECK: !2 = metadata !{metadata !"branch_weights", i32 0, i32 1} ; CHECK: !3 = metadata !{metadata !"branch_weights", i32 7000, i32 1} ; CHECK-NOT: !4