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https://github.com/c64scene-ar/llvm-6502.git
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e23370402c
The previous code put the load after the terminator, leading to invalid IR and downstream crashes. This caused http://crbug.com/506446. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241509 91177308-0d34-0410-b5e6-96231b3b80d8
67 lines
2.1 KiB
LLVM
67 lines
2.1 KiB
LLVM
; RUN: opt -winehprepare -S < %s | FileCheck %s
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; WinEHPrepare was crashing during phi demotion.
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc18.0.0"
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declare i32 @__C_specific_handler(...)
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@str = linkonce_odr unnamed_addr constant [16 x i8] c"caught it! %lx\0A\00", align 1
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; Function Attrs: nounwind uwtable
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declare void @maycrash()
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; Function Attrs: nounwind
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declare i32 @printf(i8* nocapture readonly, ...)
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; Function Attrs: nounwind uwtable
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define void @doit() personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) {
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entry:
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invoke void @maycrash()
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %entry
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invoke void @maycrash()
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to label %__try.cont unwind label %lpad.1
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 }
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catch i8* null
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%1 = extractvalue { i8*, i32 } %0, 0
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br label %__except
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lpad.1: ; preds = %invoke.cont, %lpad
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%2 = landingpad { i8*, i32 }
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catch i8* null
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%3 = extractvalue { i8*, i32 } %2, 0
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br label %__except
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__except: ; preds = %lpad, %lpad.1
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%exn.slot.0 = phi i8* [ %3, %lpad.1 ], [ %1, %lpad ]
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%4 = ptrtoint i8* %exn.slot.0 to i64
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%5 = trunc i64 %4 to i32
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%call = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @str, i64 0, i64 0), i32 %5)
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br label %__try.cont
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__try.cont: ; preds = %invoke.cont, %__except
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ret void
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}
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; CHECK-LABEL: define void @doit()
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; CHECK: landingpad
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; CHECK: indirectbr i8* %{{[^,]*}}, [label %[[except_split1:.*]]]
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; CHECK: [[except_split1]]:
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; CHECK: call i32 @llvm.eh.exceptioncode()
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; CHECK: br label %__except
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;
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; CHECK: landingpad
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; CHECK: indirectbr i8* %{{[^,]*}}, [label %[[except_split2:.*]]]
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; CHECK: [[except_split2]]:
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; CHECK: call i32 @llvm.eh.exceptioncode()
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; CHECK: br label %__except
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;
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; CHECK: __except:
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; CHECK: phi
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; CHECK: call i32 (i8*, ...) @printf
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