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; RUN: opt < %s -simplifycfg -S | FileCheck %s
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"
; This is a regression test for a bug in which we used phis() without
; make_early_inc_range() in a for loop while deleting phi nodes.
define void @cleanup_phis() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
bb0:
invoke void @foo()
to label %bb1 unwind label %ehcleanup
bb1: ; preds = %bb0
invoke void @foo()
to label %invoke.cont unwind label %ehcleanup
invoke.cont: ; preds = %bb1
ret void
ehcleanup: ; preds = %bb1, %bb0
%phi0 = phi i32 [ 0, %bb0 ], [ 1, %bb1 ]
%phi1 = phi i32 [ 2, %bb0 ], [ 3, %bb1 ]
%0 = cleanuppad within none []
cleanupret from %0 unwind label %catchswitch
; These two phi nodes were originally in ehcleanup. Both phi nodes should be
; correctly copied to this catchswitch BB.
; CHECK: catchswitch:
; CHECK-NEXT: %phi0 = phi i32 [ 0, %bb0 ], [ 1, %bb1 ]
; CHECK-NEXT: %phi1 = phi i32 [ 2, %bb0 ], [ 3, %bb1 ]
catchswitch: ; preds = %ehcleanup
%1 = catchswitch within none [label %catch] unwind to caller
catch: ; preds = %catchswitch
%2 = catchpad within %1 [i8* null]
call void @bar(i32 %phi0, i32 %phi1)
unreachable
}
declare void @foo()
declare void @bar(i32, i32)
declare i32 @__gxx_wasm_personality_v0(...)
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