; RUN: opt < %s -passes='print' -disable-output 2>&1 | FileCheck %s declare ptr @"personality_function"() #1 declare void @foo(i32) declare void @bar() declare void @llvm.experimental.deoptimize.isVoid(...) declare void @cold() cold ; Even though the likeliness of 'invoke' to throw an exception is assessed as low ; all other paths are even less likely. Check that hot paths leads to excepion handler. define void @test1(i32 %0) personality ptr @"personality_function" !prof !1 { ;CHECK: edge %entry -> %unreached probability is 0x00000001 / 0x80000000 = 0.00% ;CHECK: edge %entry -> %invoke probability is 0x7fffffff / 0x80000000 = 100.00% [HOT edge] ;CHECK: edge %invoke -> %invoke.cont.unreached probability is 0x00000000 / 0x80000000 = 0.00% ;CHECK: edge %invoke -> %land.pad probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] ;CHECK: edge %land.pad -> %exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] entry: br i1 undef, label %unreached, label %invoke, !prof !2 invoke: invoke void @foo(i32 %0) to label %invoke.cont.unreached unwind label %land.pad invoke.cont.unreached: call void (...) @llvm.experimental.deoptimize.isVoid(i32 10) [ "deopt"() ] ret void unreached: unreachable land.pad: %v20 = landingpad { ptr, i32 } cleanup %v21 = load ptr addrspace(1), ptr addrspace(256) inttoptr (i64 8 to ptr addrspace(256)), align 8 br label %exit exit: call void @bar() ret void } define void @test2(i32 %0) personality ptr @"personality_function" { ;CHECK: edge %entry -> %unreached probability is 0x00000000 / 0x80000000 = 0.00% ;CHECK: edge %entry -> %invoke probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] ;CHECK: edge %invoke -> %invoke.cont.cold probability is 0x7fff8000 / 0x80000000 = 100.00% [HOT edge] ;CHECK: edge %invoke -> %land.pad probability is 0x00008000 / 0x80000000 = 0.00% ;CHECK: edge %land.pad -> %exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] entry: br i1 undef, label %unreached, label %invoke invoke: invoke void @foo(i32 %0) to label %invoke.cont.cold unwind label %land.pad invoke.cont.cold: call void @cold() ret void unreached: unreachable land.pad: %v20 = landingpad { ptr, i32 } cleanup %v21 = load ptr addrspace(1), ptr addrspace(256) inttoptr (i64 8 to ptr addrspace(256)), align 8 br label %exit exit: call void @bar() ret void } define void @test3(i32 %0) personality ptr @"personality_function" { ;CHECK: edge %entry -> %unreached probability is 0x00000000 / 0x80000000 = 0.00% ;CHECK: edge %entry -> %invoke probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] ;CHECK: edge %invoke -> %invoke.cont.cold probability is 0x7fff8000 / 0x80000000 = 100.00% [HOT edge] ;CHECK: edge %invoke -> %land.pad probability is 0x00008000 / 0x80000000 = 0.00% ;CHECK: edge %land.pad -> %exit probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] entry: br i1 undef, label %unreached, label %invoke invoke: invoke void @foo(i32 %0) to label %invoke.cont.cold unwind label %land.pad invoke.cont.cold: call void @cold() ret void unreached: unreachable land.pad: %v20 = landingpad { ptr, i32 } cleanup %v21 = load ptr addrspace(1), ptr addrspace(256) inttoptr (i64 8 to ptr addrspace(256)), align 8 call void @cold() br label %exit exit: call void @bar() ret void } attributes #1 = { nounwind } !1 = !{!"function_entry_count", i64 32768} !2 = !{!"branch_weights", i32 1, i32 983040}