103 lines
4.8 KiB
LLVM
103 lines
4.8 KiB
LLVM
; RUN: llc -verify-machineinstrs -mtriple x86_64-pc-linux-gnu -filetype=asm < %s | \
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; RUN: FileCheck --check-prefixes=ASM,ULEB128 %s
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; RUN: llc -verify-machineinstrs -mtriple x86_64-pc-linux-gnu -use-leb128-directives=true -filetype=asm < %s | \
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; RUN: FileCheck --check-prefixes=ASM,ULEB128 %s
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; RUN: llc -verify-machineinstrs -mtriple x86_64-pc-linux-gnu -use-leb128-directives=false -filetype=asm < %s | \
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; RUN: FileCheck --check-prefixes=ASM,NO128 %s
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@_ZTIi = external dso_local constant ptr
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define dso_local i32 @main() personality ptr @__gxx_personality_v0 {
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entry:
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%retval = alloca i32, align 4
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%exn.slot = alloca ptr, align 8
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%ehselector.slot = alloca i32, align 4
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store i32 0, ptr %retval, align 4
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%exception = call ptr @__cxa_allocate_exception(i64 4) #1
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store i32 1, ptr %exception, align 16
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invoke void @__cxa_throw(ptr %exception, ptr @_ZTIi, ptr null) #2
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to label %unreachable unwind label %lpad
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lpad: ; preds = %entry
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%0 = landingpad { ptr, i32 }
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catch ptr null
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%1 = extractvalue { ptr, i32 } %0, 0
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store ptr %1, ptr %exn.slot, align 8
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%2 = extractvalue { ptr, i32 } %0, 1
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store i32 %2, ptr %ehselector.slot, align 4
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br label %catch
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catch: ; preds = %lpad
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%exn = load ptr, ptr %exn.slot, align 8
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%3 = call ptr @__cxa_begin_catch(ptr %exn) #1
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store i32 2, ptr %retval, align 4
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call void @__cxa_end_catch()
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br label %return
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try.cont: ; No predecessors!
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store i32 1, ptr %retval, align 4
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br label %return
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return: ; preds = %try.cont, %catch
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%4 = load i32, ptr %retval, align 4
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ret i32 %4
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unreachable: ; preds = %entry
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unreachable
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}
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; ASM: GCC_except_table0:
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; ASM: .Lexception0:
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; ASM: .byte 255 # @LPStart Encoding = omit
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; ASM: .byte 3 # @TType Encoding = udata4
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; NO128: .byte 49
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; NO128: .byte 3 # Call site Encoding = udata4
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; NO128: .byte 39
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; NO128: .long .Lfunc_begin0-.Lfunc_begin0 # >> Call Site 1 <<
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; NO128: .long .Ltmp0-.Lfunc_begin0 # Call between .Lfunc_begin0 and .Ltmp0
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; NO128: .long 0 # has no landing pad
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; NO128: .byte 0 # On action: cleanup
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; NO128: .long .Ltmp0-.Lfunc_begin0 # >> Call Site 2 <<
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; NO128: .long .Ltmp1-.Ltmp0 # Call between .Ltmp0 and .Ltmp1
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; NO128: .long .Ltmp2-.Lfunc_begin0 # jumps to .Ltmp2
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; NO128: .byte 1 # On action: 1
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; NO128: .long .Ltmp1-.Lfunc_begin0 # >> Call Site 3 <<
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; NO128: .long .Lfunc_end0-.Ltmp1 # Call between .Ltmp1 and .Lfunc_end0
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; NO128: .long 0 # has no landing pad
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; NO128: .byte 0 # On action: cleanup
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; ULEB128: .uleb128 .Lttbase0-.Lttbaseref0
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; ULEB128: .Lttbaseref0:
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; ULEB128: .byte 1 # Call site Encoding = uleb128
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; ULEB128: .uleb128 .Lcst_end0-.Lcst_begin0
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; ULEB128: .Lcst_begin0:
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; ULEB128: .uleb128 .Lfunc_begin0-.Lfunc_begin0 # >> Call Site 1 <<
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; ULEB128: .uleb128 .Ltmp0-.Lfunc_begin0 # Call between .Lfunc_begin0 and .Ltmp0
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; ULEB128: .byte 0 # has no landing pad
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; ULEB128: .byte 0 # On action: cleanup
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; ULEB128: .uleb128 .Ltmp0-.Lfunc_begin0 # >> Call Site 2 <<
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; ULEB128: .uleb128 .Ltmp1-.Ltmp0 # Call between .Ltmp0 and .Ltmp1
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; ULEB128: .uleb128 .Ltmp2-.Lfunc_begin0 # jumps to .Ltmp2
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; ULEB128: .byte 1 # On action: 1
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; ULEB128: .uleb128 .Ltmp1-.Lfunc_begin0 # >> Call Site 3 <<
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; ULEB128: .uleb128 .Lfunc_end0-.Ltmp1 # Call between .Ltmp1 and .Lfunc_end0
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; ULEB128: .byte 0 # has no landing pad
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; ULEB128: .byte 0 # On action: cleanup
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; ASM: .Lcst_end0:
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; ASM: .byte 1 # >> Action Record 1 <<
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; ASM: # Catch TypeInfo 1
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; ASM: .byte 0 # No further actions
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; ASM: .p2align 2
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; ASM: # >> Catch TypeInfos <<
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; ASM: .long 0 # TypeInfo 1
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; ASM: .Lttbase0:
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; ASM: .p2align 2
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declare dso_local ptr @__cxa_allocate_exception(i64)
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declare dso_local void @__cxa_throw(ptr, ptr, ptr)
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declare dso_local i32 @__gxx_personality_v0(...)
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declare dso_local ptr @__cxa_begin_catch(ptr)
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declare dso_local void @__cxa_end_catch()
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