1; RUN: llc -O2 -ppc-reduce-cr-logicals -print-machine-bfi -o - %s 2>&1 | FileCheck %s 2target datalayout = "e-m:e-i64:64-n32:64" 3target triple = "powerpc64le-grtev4-linux-gnu" 4 5; First block frequency info 6;CHECK: block-frequency-info: loop_test 7;CHECK-NEXT: - BB0[entry]: float = 1.0, int = {{.*}} 8;CHECK-NEXT: - BB1[for.check]: float = 2.6667, int = {{.*}} 9;CHECK-NEXT: - BB2[test1]: float = 1.6667, int = {{.*}} 10;CHECK-NEXT: - BB3[optional1]: float = 0.625, int = {{.*}} 11 12;CHECK: block-frequency-info: loop_test 13;CHECK: block-frequency-info: loop_test 14;CHECK: block-frequency-info: loop_test 15 16; Last block frequency info 17;CHECK: block-frequency-info: loop_test 18;CHECK-NEXT: - BB0[entry]: float = 1.0, int = {{.*}} 19;CHECK-NEXT: - BB1[for.check]: float = 2.6667, int = {{.*}} 20;CHECK-NEXT: - BB2[for.check]: float = 2.1667, int = {{.*}} 21;CHECK-NEXT: - BB3[test1]: float = 1.6667, int = {{.*}} 22;CHECK-NEXT: - BB4[optional1]: float = 0.625, int = {{.*}} 23 24 25define void @loop_test(ptr %tags, i32 %count) { 26entry: 27 br label %for.check 28for.check: 29 %count.loop = phi i32 [%count, %entry], [%count.sub, %for.latch] 30 %done.count = icmp ugt i32 %count.loop, 0 31 %tag_ptr = getelementptr inbounds i32, ptr %tags, i32 %count 32 %tag = load i32, ptr %tag_ptr 33 %done.tag = icmp eq i32 %tag, 0 34 %done = and i1 %done.count, %done.tag 35 br i1 %done, label %test1, label %exit, !prof !1 36test1: 37 %tagbit1 = and i32 %tag, 1 38 %tagbit1eq0 = icmp eq i32 %tagbit1, 0 39 br i1 %tagbit1eq0, label %test2, label %optional1, !prof !1 40optional1: 41 call void @a() 42 call void @a() 43 call void @a() 44 call void @a() 45 br label %test2 46test2: 47 %tagbit2 = and i32 %tag, 2 48 %tagbit2eq0 = icmp eq i32 %tagbit2, 0 49 br i1 %tagbit2eq0, label %test3, label %optional2, !prof !1 50optional2: 51 call void @b() 52 call void @b() 53 call void @b() 54 call void @b() 55 br label %test3 56test3: 57 %tagbit3 = and i32 %tag, 4 58 %tagbit3eq0 = icmp eq i32 %tagbit3, 0 59 br i1 %tagbit3eq0, label %test4, label %optional3, !prof !1 60optional3: 61 call void @c() 62 call void @c() 63 call void @c() 64 call void @c() 65 br label %test4 66test4: 67 %tagbit4 = and i32 %tag, 8 68 %tagbit4eq0 = icmp eq i32 %tagbit4, 0 69 br i1 %tagbit4eq0, label %for.latch, label %optional4, !prof !1 70optional4: 71 call void @d() 72 call void @d() 73 call void @d() 74 call void @d() 75 br label %for.latch 76for.latch: 77 %count.sub = sub i32 %count.loop, 1 78 br label %for.check 79exit: 80 ret void 81} 82 83declare void @a() 84declare void @b() 85declare void @c() 86declare void @d() 87 88!1 = !{!"branch_weights", i32 5, i32 3} 89