107 lines
3.8 KiB
LLVM
107 lines
3.8 KiB
LLVM
|
; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-block-placement -wasm-disable-explicit-locals -wasm-keep-registers -enable-emscripten-cxx-exceptions | FileCheck %s
|
||
|
|
|
||
|
|
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
|
||
|
|
target triple = "wasm32-unknown-unknown"
|
||
|
|
|
||
|
|
declare i32 @__gxx_personality_v0(...)
|
||
|
|
|
||
|
|
; Check an interesting case of complex control flow due to exceptions CFG rewriting.
|
||
|
|
; There should *not* be any irreducible control flow here.
|
||
|
|
|
||
|
|
; CHECK-LABEL: crashy:
|
||
|
|
; CHECK-NOT: br_table
|
||
|
|
|
||
|
|
define void @crashy() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
|
||
|
|
entry:
|
||
|
|
invoke void undef()
|
||
|
|
to label %invoke.cont unwind label %lpad
|
||
|
|
|
||
|
|
invoke.cont: ; preds = %entry
|
||
|
|
invoke void undef()
|
||
|
|
to label %invoke.cont4 unwind label %lpad3
|
||
|
|
|
||
|
|
invoke.cont4: ; preds = %invoke.cont
|
||
|
|
%call.i82 = invoke i8* undef()
|
||
|
|
to label %invoke.cont6 unwind label %lpad3
|
||
|
|
|
||
|
|
invoke.cont6: ; preds = %invoke.cont4
|
||
|
|
invoke void undef()
|
||
|
|
to label %invoke.cont13 unwind label %lpad12
|
||
|
|
|
||
|
|
invoke.cont13: ; preds = %invoke.cont6
|
||
|
|
br label %for.cond
|
||
|
|
|
||
|
|
for.cond: ; preds = %for.cond.backedge, %invoke.cont13
|
||
|
|
br i1 undef, label %exit2, label %land.lhs
|
||
|
|
|
||
|
|
land.lhs: ; preds = %for.cond
|
||
|
|
%call.i.i.i.i92 = invoke i32 undef()
|
||
|
|
to label %exit1 unwind label %lpad16.loopexit
|
||
|
|
|
||
|
|
exit1: ; preds = %land.lhs
|
||
|
|
br label %exit2
|
||
|
|
|
||
|
|
exit2: ; preds = %exit1, %for.cond
|
||
|
|
%call.i.i12.i.i93 = invoke i32 undef()
|
||
|
|
to label %exit3 unwind label %lpad16.loopexit
|
||
|
|
|
||
|
|
exit3: ; preds = %exit2
|
||
|
|
invoke void undef()
|
||
|
|
to label %invoke.cont23 unwind label %lpad22
|
||
|
|
|
||
|
|
invoke.cont23: ; preds = %exit3
|
||
|
|
invoke void undef()
|
||
|
|
to label %invoke.cont25 unwind label %lpad22
|
||
|
|
|
||
|
|
invoke.cont25: ; preds = %invoke.cont23
|
||
|
|
%call.i.i137 = invoke i32 undef()
|
||
|
|
to label %invoke.cont29 unwind label %lpad16.loopexit
|
||
|
|
|
||
|
|
lpad: ; preds = %entry
|
||
|
|
%0 = landingpad { i8*, i32 }
|
||
|
|
cleanup
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
lpad3: ; preds = %invoke.cont4, %invoke.cont
|
||
|
|
%1 = landingpad { i8*, i32 }
|
||
|
|
cleanup
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
lpad12: ; preds = %invoke.cont6
|
||
|
|
%2 = landingpad { i8*, i32 }
|
||
|
|
cleanup
|
||
|
|
resume { i8*, i32 } undef
|
||
|
|
|
||
|
|
lpad16.loopexit: ; preds = %if.then, %invoke.cont29, %invoke.cont25, %exit2, %land.lhs
|
||
|
|
%lpad.loopexit = landingpad { i8*, i32 }
|
||
|
|
cleanup
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
lpad22: ; preds = %invoke.cont23, %exit3
|
||
|
|
%3 = landingpad { i8*, i32 }
|
||
|
|
cleanup
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
invoke.cont29: ; preds = %invoke.cont25
|
||
|
|
invoke void undef()
|
||
|
|
to label %invoke.cont33 unwind label %lpad16.loopexit
|
||
|
|
|
||
|
|
invoke.cont33: ; preds = %invoke.cont29
|
||
|
|
br label %for.inc
|
||
|
|
|
||
|
|
for.inc: ; preds = %invoke.cont33
|
||
|
|
%cmp.i.i141 = icmp eq i8* undef, undef
|
||
|
|
br i1 %cmp.i.i141, label %if.then, label %if.end.i.i146
|
||
|
|
|
||
|
|
if.then: ; preds = %for.inc
|
||
|
|
%call.i.i148 = invoke i32 undef()
|
||
|
|
to label %for.cond.backedge unwind label %lpad16.loopexit
|
||
|
|
|
||
|
|
for.cond.backedge: ; preds = %if.end.i.i146, %if.then
|
||
|
|
br label %for.cond
|
||
|
|
|
||
|
|
if.end.i.i146: ; preds = %for.inc
|
||
|
|
call void undef()
|
||
|
|
br label %for.cond.backedge
|
||
|
|
}
|