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66 lines
2.0 KiB
LLVM
66 lines
2.0 KiB
LLVM
; RUN: opt < %s -instcombine -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 i64 @llvm.objectsize.i64(i8*, i1) nounwind readonly
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declare i8* @_Znwm(i64)
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; CHECK-LABEL: @f1(
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define i64 @f1() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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entry:
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; CHECK: nvoke noalias i8* undef()
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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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; CHECK: ret i64 0
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%0 = tail call i64 @llvm.objectsize.i64(i8* %call, i1 false)
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ret i64 %0
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lpad:
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%1 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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%2 = extractvalue { i8*, i32 } %1, 0
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tail call void @__cxa_call_unexpected(i8* %2) noreturn nounwind
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unreachable
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}
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; CHECK-LABEL: @f2(
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define i64 @f2() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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entry:
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; CHECK: nvoke noalias i8* null()
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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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; CHECK: ret i64 0
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%0 = tail call i64 @llvm.objectsize.i64(i8* %call, i1 false)
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ret i64 %0
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lpad:
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%1 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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%2 = extractvalue { i8*, i32 } %1, 0
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tail call void @__cxa_call_unexpected(i8* %2) noreturn nounwind
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unreachable
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}
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; CHECK-LABEL: @f3(
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define void @f3() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK: invoke void @llvm.donothing()
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%call = invoke noalias i8* @_Znwm(i64 13)
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to label %invoke.cont unwind label %lpad
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invoke.cont:
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ret void
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lpad:
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%1 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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%2 = extractvalue { i8*, i32 } %1, 0
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tail call void @__cxa_call_unexpected(i8* %2) noreturn nounwind
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unreachable
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}
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