forked from OSchip/llvm-project
46 lines
1.4 KiB
LLVM
46 lines
1.4 KiB
LLVM
; RUN: llc %s -o - -verify-machineinstrs | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-unknown"
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; The machine level BranchFolding pass will try to remove the 'unreachable' block
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; and rewrite 'entry' to jump to the block 'unreachable' falls through to.
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; That will be a landing pad and result in 'entry' jumping to 2 landing pads.
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; This tests that we don't do this change when the fallthrough is itself a landing
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; pad.
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declare i32 @__gxx_personality_v0(...)
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declare void @foo()
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; Function Attrs: noreturn
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declare void @_throw()
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; CHECK-LABEL: @main
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; CHECK: %unreachable
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define i32 @main(i8* %cleanup) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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entry:
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invoke void @_throw() #0
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to label %unreachable unwind label %catch.dispatch9
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catch.dispatch9: ; preds = %entry
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%tmp13 = landingpad { i8*, i32 }
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cleanup
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catch i8* null
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invoke void @_throw() #0
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to label %unreachable unwind label %lpad31
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lpad31: ; preds = %catch.dispatch9
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%tmp20 = landingpad { i8*, i32 }
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cleanup
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catch i8* null
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call void @foo()
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unreachable
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unreachable: ; preds = %catch.dispatch9, %entry
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unreachable
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}
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attributes #0 = { noreturn }
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