66 lines
2.5 KiB
LLVM
66 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=sroa -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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%struct.foo = type { i32 }
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declare i32 @__gxx_wasm_personality_v0(...)
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declare void @foo()
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; Tests if the SROA pass correctly bails out on rewriting PHIs in a catchswitch
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; BB.
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define void @test_phi_catchswitch() personality ptr @__gxx_wasm_personality_v0 {
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; CHECK-LABEL: @test_phi_catchswitch(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP:%.*]] = alloca [[STRUCT_FOO:%.*]], align 4
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; CHECK-NEXT: invoke void @foo()
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; CHECK-NEXT: to label [[BB3:%.*]] unwind label [[BB10:%.*]]
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; CHECK: bb3:
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; CHECK-NEXT: invoke void @foo()
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; CHECK-NEXT: to label [[BB9:%.*]] unwind label [[CATCH_DISPATCH:%.*]]
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; CHECK: catch.dispatch:
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; CHECK-NEXT: [[TMP5:%.*]] = phi ptr [ [[TMP]], [[BB3]] ]
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; CHECK-NEXT: [[TMP6:%.*]] = catchswitch within none [label %catch.start] unwind label [[BB10]]
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; CHECK: catch.start:
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; CHECK-NEXT: [[TMP8:%.*]] = catchpad within [[TMP6]] [ptr null]
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; CHECK-NEXT: unreachable
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; CHECK: bb9:
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; CHECK-NEXT: unreachable
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; CHECK: bb10:
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; CHECK-NEXT: [[TMP11:%.*]] = phi ptr [ [[TMP]], [[ENTRY:%.*]] ], [ [[TMP5]], [[CATCH_DISPATCH]] ]
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; CHECK-NEXT: [[TMP12:%.*]] = cleanuppad within none []
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; CHECK-NEXT: store i32 0, ptr [[TMP11]], align 4
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; CHECK-NEXT: unreachable
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;
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entry:
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%tmp = alloca %struct.foo, align 4
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invoke void @foo()
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to label %bb3 unwind label %bb10
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bb3: ; preds = %entry
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invoke void @foo()
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to label %bb9 unwind label %catch.dispatch
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catch.dispatch: ; preds = %bb3
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; While rewriting the alloca in the entry BB, the SROA pass tries to insert a
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; non-PHI instruction in this BB by calling getFirstInsertionPt(), which is
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; not possible in a catchswitch BB. This test checks if we correctly bail out
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; on these cases.
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%tmp5 = phi ptr [ %tmp, %bb3 ]
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%tmp6 = catchswitch within none [label %catch.start] unwind label %bb10
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catch.start: ; preds = %catch.dispatch
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%tmp8 = catchpad within %tmp6 [ptr null]
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unreachable
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bb9: ; preds = %bb3
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unreachable
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bb10: ; preds = %catch.dispatch, %entry
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%tmp11 = phi ptr [ %tmp, %entry ], [ %tmp5, %catch.dispatch ]
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%tmp12 = cleanuppad within none []
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store i32 0, ptr %tmp11, align 4
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unreachable
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}
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