54 lines
1.8 KiB
LLVM
54 lines
1.8 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128-ni:1"
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target triple = "wasm32-unknown-unknown"
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%struct.quux = type { i32 }
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%struct.blam = type <{ %struct.quux }>
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declare void @foo()
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declare void @bar(%struct.quux*)
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declare i32 @__gxx_wasm_personality_v0(...)
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define void @test() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
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bb:
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%tmp0 = alloca %struct.blam, align 4
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br i1 undef, label %bb1, label %bb2
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bb1: ; preds = %bb
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%tmp1 = getelementptr inbounds %struct.blam, %struct.blam* %tmp0, i32 0, i32 0
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invoke void @foo()
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to label %bb3 unwind label %bb4
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bb2: ; preds = %bb
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%tmp2 = getelementptr inbounds %struct.blam, %struct.blam* %tmp0, i32 0, i32 0
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invoke void @foo()
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to label %bb3 unwind label %bb4
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bb3: ; preds = %bb2, %bb1
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unreachable
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bb4: ; preds = %bb2, %bb1
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; This PHI should not be combined into a non-PHI instruction, because
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; catchswitch BB cannot have any non-PHI instruction other than catchswitch
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; itself.
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; CHECK: bb4:
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; CHECK-NEXT: phi
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; CHECK-NEXT: catchswitch
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%tmp3 = phi %struct.quux* [ %tmp1, %bb1 ], [ %tmp2, %bb2 ]
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%tmp4 = catchswitch within none [label %bb5] unwind label %bb7
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bb5: ; preds = %bb4
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%tmp5 = catchpad within %tmp4 [i8* null]
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invoke void @foo() [ "funclet"(token %tmp5) ]
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to label %bb6 unwind label %bb7
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bb6: ; preds = %bb5
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unreachable
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bb7: ; preds = %bb5, %bb4
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%tmp6 = cleanuppad within none []
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call void @bar(%struct.quux* %tmp3) [ "funclet"(token %tmp6) ]
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unreachable
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}
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