8ecce69594
Issue Details: The addresses for SEH tables for Windows are incorrect as 1 was unconditionally being added to all addresses. +1 is required for the SEH end address (as it is exclusive), but the SEH start addresses is inclusive and so should be used as-is. In the IP2State tables, the addresses are +1 for AMD64 to handle the return address for a call being after the actual call instruction but are as-is for ARM and ARM64 as the `StateFromIp` function in the VC runtime automatically takes this into account and adjusts the address that is it looking up. Fix Details: * Split the `getLabel` function into two: `getLabel` (used for the SEH start address and ARM+ARM64 IP2State addresses) and `getLabelPlusOne` (for the SEH end address, and AMD64 IP2State addresses). Reviewed By: rnk Differential Revision: https://reviews.llvm.org/D107784
61 lines
1.8 KiB
LLVM
61 lines
1.8 KiB
LLVM
; RUN: llc -mtriple=x86_64-windows-msvc < %s | FileCheck %s --check-prefix=X64
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; RUN: sed -e 's/__C_specific_handler/_except_handler3/' %s | \
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; RUN: llc -mtriple=i686-windows-msvc | FileCheck %s --check-prefix=X86
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@str_recovered = internal unnamed_addr constant [10 x i8] c"recovered\00", align 1
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declare void @crash()
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define i32 @main() personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) {
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entry:
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invoke void @crash()
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %entry
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%call = call i32 @puts(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @str_recovered, i64 0, i64 0))
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call void @abort()
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ret i32 0
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lpad: ; preds = %entry
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%p = cleanuppad within none []
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%call2 = call i32 @puts(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @str_recovered, i64 0, i64 0)) [ "funclet"(token %p) ]
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cleanupret from %p unwind to caller
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}
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; X64-LABEL: main:
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; X64: retq
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; X64: .seh_handlerdata
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; X64-NEXT: .set .Lmain$parent_frame_offset, 32
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; X64-NEXT: .long (.Llsda_end0-.Llsda_begin0)/16 # Number of call sites
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; X64-NEXT: .Llsda_begin0:
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; X64-NEXT: .long .Ltmp0@IMGREL # LabelStart
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; X64-NEXT: .long .Ltmp1@IMGREL+1 # LabelEnd
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; X64-NEXT: .long "?dtor$2@?0?main@4HA"@IMGREL # FinallyFunclet
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; X64-NEXT: .long 0 # Null
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; X64-NEXT: .Llsda_end0:
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; X64-LABEL: "?dtor$2@?0?main@4HA":
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; X64: callq puts
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; X64: retq
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; X86-LABEL: _main:
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; X86: retl
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; X86-LABEL: "?dtor$2@?0?main@4HA":
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; X86: LBB0_2:
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; X86: calll _puts
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; X86: retl
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; X86: .section .xdata,"dr"
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; X86: L__ehtable$main:
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; X86-NEXT: .long -1 # ToState
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; X86-NEXT: .long 0 # Null
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; X86-NEXT: .long "?dtor$2@?0?main@4HA" # FinallyFunclet
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declare i32 @__C_specific_handler(...)
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declare i32 @puts(i8*)
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declare void @abort()
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