| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" |
| |
| declare i32 @__gxx_personality_v0(...) |
| declare void @__cxa_call_unexpected(i8*) |
| declare void @purefn() nounwind readnone |
| declare i32 @read_only() nounwind readonly |
| declare i32 @nounwind_fn() nounwind |
| declare i32 @fn() |
| |
| |
| define i8* @f1() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { |
| ; CHECK-LABEL: @f1( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: unreachable |
| ; |
| entry: |
| %call = invoke noalias i8* undef() |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: |
| ret i8* %call |
| |
| lpad: |
| %0 = landingpad { i8*, i32 } |
| filter [0 x i8*] zeroinitializer |
| %1 = extractvalue { i8*, i32 } %0, 0 |
| tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind |
| unreachable |
| } |
| |
| define i8* @f2() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { |
| ; CHECK-LABEL: @f2( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: unreachable |
| ; |
| entry: |
| %call = invoke noalias i8* null() |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: |
| ret i8* %call |
| |
| lpad: |
| %0 = landingpad { i8*, i32 } |
| filter [0 x i8*] zeroinitializer |
| %1 = extractvalue { i8*, i32 } %0, 0 |
| tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind |
| unreachable |
| } |
| |
| define i8* @f2_no_null_opt() nounwind uwtable ssp #0 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { |
| ; CHECK-LABEL: @f2_no_null_opt( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CALL:%.*]] = invoke noalias i8* null() |
| ; CHECK-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]] |
| ; CHECK: invoke.cont: |
| ; CHECK-NEXT: ret i8* [[CALL]] |
| ; CHECK: lpad: |
| ; CHECK-NEXT: [[TMP0:%.*]] = landingpad { i8*, i32 } |
| ; CHECK-NEXT: filter [0 x i8*] zeroinitializer |
| ; CHECK-NEXT: [[TMP1:%.*]] = extractvalue { i8*, i32 } [[TMP0]], 0 |
| ; CHECK-NEXT: tail call void @__cxa_call_unexpected(i8* [[TMP1]]) #[[ATTR5:[0-9]+]] |
| ; CHECK-NEXT: unreachable |
| ; |
| entry: |
| %call = invoke noalias i8* null() |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: |
| ret i8* %call |
| |
| lpad: |
| %0 = landingpad { i8*, i32 } |
| filter [0 x i8*] zeroinitializer |
| %1 = extractvalue { i8*, i32 } %0, 0 |
| tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind |
| unreachable |
| } |
| |
| define i32 @f3() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { |
| ; CHECK-LABEL: @f3( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: ret i32 3 |
| ; |
| entry: |
| %call = invoke i32 @read_only() |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: |
| ret i32 3 |
| |
| lpad: |
| %0 = landingpad { i8*, i32 } |
| filter [0 x i8*] zeroinitializer |
| %1 = extractvalue { i8*, i32 } %0, 0 |
| tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind |
| unreachable |
| } |
| |
| define i32 @f4() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { |
| ; CHECK-LABEL: @f4( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CALL:%.*]] = call i32 @read_only() |
| ; CHECK-NEXT: ret i32 [[CALL]] |
| ; |
| entry: |
| %call = invoke i32 @read_only() |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: |
| ret i32 %call |
| |
| lpad: |
| %0 = landingpad { i8*, i32 } |
| filter [0 x i8*] zeroinitializer |
| %1 = extractvalue { i8*, i32 } %0, 0 |
| tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind |
| unreachable |
| } |
| |
| define i32 @f5(i1 %cond, i8* %a, i8* %b) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { |
| ; CHECK-LABEL: @f5( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br i1 [[COND:%.*]], label [[X:%.*]], label [[Y:%.*]] |
| ; CHECK: x: |
| ; CHECK-NEXT: [[CALL:%.*]] = invoke i32 @fn() |
| ; CHECK-NEXT: to label [[CONT:%.*]] unwind label [[LPAD:%.*]] |
| ; CHECK: y: |
| ; CHECK-NEXT: [[CALL2:%.*]] = call i32 @nounwind_fn() |
| ; CHECK-NEXT: br label [[CONT]] |
| ; CHECK: cont: |
| ; CHECK-NEXT: [[PHI:%.*]] = phi i32 [ [[CALL]], [[X]] ], [ [[CALL2]], [[Y]] ] |
| ; CHECK-NEXT: ret i32 [[PHI]] |
| ; CHECK: lpad: |
| ; CHECK-NEXT: [[TMP0:%.*]] = landingpad { i8*, i32 } |
| ; CHECK-NEXT: filter [0 x i8*] zeroinitializer |
| ; CHECK-NEXT: tail call void @__cxa_call_unexpected(i8* [[A:%.*]]) #[[ATTR5]] |
| ; CHECK-NEXT: unreachable |
| ; |
| entry: |
| br i1 %cond, label %x, label %y |
| |
| x: |
| %call = invoke i32 @fn() |
| to label %cont unwind label %lpad |
| |
| y: |
| %call2 = invoke i32 @nounwind_fn() |
| to label %cont unwind label %lpad |
| |
| cont: |
| %phi = phi i32 [%call, %x], [%call2, %y] |
| ret i32 %phi |
| |
| lpad: |
| %phi2 = phi i8* [%a, %x], [%b, %y] |
| %0 = landingpad { i8*, i32 } |
| filter [0 x i8*] zeroinitializer |
| tail call void @__cxa_call_unexpected(i8* %phi2) noreturn nounwind |
| unreachable |
| } |
| |
| define void @f6() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { |
| ; CHECK-LABEL: @f6( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[FOO:%.*]] = invoke i32 @fn() |
| ; CHECK-NEXT: to label [[COMMON_RET:%.*]] unwind label [[LPAD:%.*]] |
| ; CHECK: common.ret: |
| ; CHECK-NEXT: ret void |
| ; CHECK: lpad: |
| ; CHECK-NEXT: [[TMP0:%.*]] = landingpad { i8*, i32 } |
| ; CHECK-NEXT: cleanup |
| ; CHECK-NEXT: br label [[COMMON_RET]] |
| ; |
| entry: |
| invoke void @purefn() |
| to label %invoke.cont1 unwind label %lpad |
| |
| invoke.cont1: |
| %foo = invoke i32 @fn() |
| to label %invoke.cont2 unwind label %lpad |
| |
| invoke.cont2: |
| ret void |
| |
| lpad: |
| %tmp = phi i8* [ null, %invoke.cont1 ], [ null, %entry ] |
| landingpad { i8*, i32 } |
| cleanup |
| ret void |
| } |
| |
| attributes #0 = { null_pointer_is_valid } |