303 lines
8.8 KiB
LLVM
303 lines
8.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
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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"
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declare i32 @__gxx_personality_v0(...)
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declare void @__cxa_call_unexpected(i8*)
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declare void @purefn() nounwind readnone willreturn
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declare i32 @readonly() nounwind readonly
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declare i32 @readonly_willreturn() nounwind readonly willreturn
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declare i32 @nounwind_fn() nounwind
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declare i32 @fn()
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define i8* @f1() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @f1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: unreachable
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;
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entry:
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%call = invoke noalias i8* undef()
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to label %invoke.cont unwind label %lpad
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invoke.cont:
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ret i8* %call
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lpad:
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%0 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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%1 = extractvalue { i8*, i32 } %0, 0
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tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
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unreachable
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}
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define i8* @f2() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @f2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: unreachable
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;
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entry:
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%call = invoke noalias i8* null()
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to label %invoke.cont unwind label %lpad
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invoke.cont:
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ret i8* %call
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lpad:
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%0 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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%1 = extractvalue { i8*, i32 } %0, 0
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tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
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unreachable
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}
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define i8* @f2_no_null_opt() nounwind uwtable ssp #0 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @f2_no_null_opt(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CALL:%.*]] = invoke noalias i8* null()
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; CHECK-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]]
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; CHECK: invoke.cont:
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; CHECK-NEXT: ret i8* [[CALL]]
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; CHECK: lpad:
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; CHECK-NEXT: [[TMP0:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: filter [0 x i8*] zeroinitializer
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; CHECK-NEXT: [[TMP1:%.*]] = extractvalue { i8*, i32 } [[TMP0]], 0
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; CHECK-NEXT: tail call void @__cxa_call_unexpected(i8* [[TMP1]]) #[[ATTR7:[0-9]+]]
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; CHECK-NEXT: unreachable
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;
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entry:
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%call = invoke noalias i8* null()
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to label %invoke.cont unwind label %lpad
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invoke.cont:
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ret i8* %call
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lpad:
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%0 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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%1 = extractvalue { i8*, i32 } %0, 0
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tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
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unreachable
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}
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define i32 @invoke_readonly_may_not_return() nounwind personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @invoke_readonly_may_not_return(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @readonly()
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; CHECK-NEXT: ret i32 3
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;
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entry:
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%call = invoke i32 @readonly()
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to label %invoke.cont unwind label %lpad
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invoke.cont:
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ret i32 3
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lpad:
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%0 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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%1 = extractvalue { i8*, i32 } %0, 0
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tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
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unreachable
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}
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define i32 @invoke_readonly_willreturn() nounwind personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @invoke_readonly_willreturn(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i32 3
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;
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entry:
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%call = invoke i32 @readonly_willreturn()
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to label %invoke.cont unwind label %lpad
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invoke.cont:
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ret i32 3
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lpad:
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%0 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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%1 = extractvalue { i8*, i32 } %0, 0
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tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
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unreachable
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}
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define i32 @invoke_readonly_willreturn_with_used_retval() nounwind personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @invoke_readonly_willreturn_with_used_retval(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @readonly_willreturn()
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; CHECK-NEXT: ret i32 [[CALL]]
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;
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entry:
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%call = invoke i32 @readonly_willreturn()
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to label %invoke.cont unwind label %lpad
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invoke.cont:
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ret i32 %call
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lpad:
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%0 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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%1 = extractvalue { i8*, i32 } %0, 0
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tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
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unreachable
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}
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define i32 @f5(i1 %cond, i8* %a, i8* %b) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @f5(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[X:%.*]], label [[Y:%.*]]
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; CHECK: x:
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; CHECK-NEXT: [[CALL:%.*]] = invoke i32 @fn()
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; CHECK-NEXT: to label [[CONT:%.*]] unwind label [[LPAD:%.*]]
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; CHECK: y:
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; CHECK-NEXT: [[CALL2:%.*]] = call i32 @nounwind_fn()
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; CHECK-NEXT: br label [[CONT]]
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; CHECK: cont:
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; CHECK-NEXT: [[PHI:%.*]] = phi i32 [ [[CALL]], [[X]] ], [ [[CALL2]], [[Y]] ]
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; CHECK-NEXT: ret i32 [[PHI]]
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; CHECK: lpad:
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; CHECK-NEXT: [[TMP0:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: filter [0 x i8*] zeroinitializer
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; CHECK-NEXT: tail call void @__cxa_call_unexpected(i8* [[A:%.*]]) #[[ATTR7]]
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; CHECK-NEXT: unreachable
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;
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entry:
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br i1 %cond, label %x, label %y
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x:
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%call = invoke i32 @fn()
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to label %cont unwind label %lpad
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y:
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%call2 = invoke i32 @nounwind_fn()
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to label %cont unwind label %lpad
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cont:
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%phi = phi i32 [%call, %x], [%call2, %y]
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ret i32 %phi
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lpad:
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%phi2 = phi i8* [%a, %x], [%b, %y]
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%0 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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tail call void @__cxa_call_unexpected(i8* %phi2) noreturn nounwind
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unreachable
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}
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define void @f6() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @f6(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[FOO:%.*]] = invoke i32 @fn()
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; CHECK-NEXT: to label [[COMMON_RET:%.*]] unwind label [[LPAD:%.*]]
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; CHECK: common.ret:
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; CHECK-NEXT: ret void
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; CHECK: lpad:
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; CHECK-NEXT: [[TMP0:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: br label [[COMMON_RET]]
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;
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entry:
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invoke void @purefn()
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to label %invoke.cont1 unwind label %lpad
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invoke.cont1:
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%foo = invoke i32 @fn()
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to label %invoke.cont2 unwind label %lpad
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invoke.cont2:
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ret void
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lpad:
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%tmp = phi i8* [ null, %invoke.cont1 ], [ null, %entry ]
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landingpad { i8*, i32 }
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cleanup
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ret void
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}
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define void @invoke_of_noreturn() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @invoke_of_noreturn(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: invoke void @simple_throw()
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; CHECK-NEXT: to label [[INVOKE_CONT_UNREACHABLE:%.*]] unwind label [[LPAD:%.*]]
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; CHECK: invoke.cont.unreachable:
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; CHECK-NEXT: unreachable
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; CHECK: lpad:
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; CHECK-NEXT: [[EH:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: call void @sideeffect(i32 1)
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; CHECK-NEXT: resume { i8*, i32 } [[EH]]
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;
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entry:
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invoke void @simple_throw() to label %invoke.cont unwind label %lpad
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invoke.cont:
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call void @sideeffect(i32 0)
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ret void
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lpad:
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%eh = landingpad { i8*, i32 } cleanup
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call void @sideeffect(i32 1)
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resume { i8*, i32 } %eh
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}
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define void @invoke_of_noreturn_with_shared_normal_destination(i1 %c) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @invoke_of_noreturn_with_shared_normal_destination(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[C:%.*]], label [[INVOKE:%.*]], label [[INVOKE_CONT:%.*]]
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; CHECK: invoke:
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; CHECK-NEXT: invoke void @simple_throw()
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; CHECK-NEXT: to label [[INVOKE_CONT_UNREACHABLE:%.*]] unwind label [[LPAD:%.*]]
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; CHECK: invoke.cont.unreachable:
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; CHECK-NEXT: unreachable
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; CHECK: invoke.cont:
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; CHECK-NEXT: call void @sideeffect(i32 -1)
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; CHECK-NEXT: ret void
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; CHECK: lpad:
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; CHECK-NEXT: [[EH:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: call void @sideeffect(i32 1)
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; CHECK-NEXT: resume { i8*, i32 } [[EH]]
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;
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entry:
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br i1 %c, label %invoke, label %invoke.cont
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invoke:
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invoke void @simple_throw() to label %invoke.cont unwind label %lpad
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invoke.cont:
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%r = phi i32 [ 0, %invoke ], [ -1, %entry ]
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call void @sideeffect(i32 %r)
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ret void
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lpad:
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%eh = landingpad { i8*, i32 } cleanup
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call void @sideeffect(i32 1)
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resume { i8*, i32 } %eh
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}
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define void @invoke_of_nounwind() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @invoke_of_nounwind(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: call void @simple_return()
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; CHECK-NEXT: call void @sideeffect(i32 0)
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; CHECK-NEXT: ret void
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;
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entry:
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invoke void @simple_return() to label %invoke.cont unwind label %lpad
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invoke.cont:
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call void @sideeffect(i32 0)
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ret void
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lpad:
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%eh = landingpad { i8*, i32 } cleanup
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call void @sideeffect(i32 1)
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resume { i8*, i32 } %eh
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}
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declare void @simple_throw() noreturn
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declare void @simple_return() nounwind
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declare void @sideeffect(i32 )
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attributes #0 = { null_pointer_is_valid }
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