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