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f02bc70c7d
It's not valid to simply branch to a landingpad block, so it needs to be removed. Also stop trying to scan forward to find a block that can be merged. The predecessor merge rules are more complex than this. This also would need to have considered landingpads. Just do the minimum to delete the block, and let the simplify-cfg reduction handle the branch chain cleanups.
57 lines
1.6 KiB
LLVM
57 lines
1.6 KiB
LLVM
; RUN: llvm-reduce -abort-on-invalid-reduction --delta-passes=basic-blocks --test FileCheck --test-arg --check-prefixes=CHECK-ALL,CHECK-INTERESTINGNESS0 --test-arg %s --test-arg --input-file %s -o %t.0
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; RUN: FileCheck --check-prefixes=CHECK-ALL,CHECK-FINAL0 %s < %t.0
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; RUN: llvm-reduce -abort-on-invalid-reduction --delta-passes=basic-blocks --test FileCheck --test-arg --check-prefixes=CHECK-INTERESTINGNESS1 --test-arg %s --test-arg --input-file %s -o %t.1
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; RUN: FileCheck --check-prefixes=CHECK-ALL,CHECK-FINAL1 %s < %t.1
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declare i32 @maybe_throwing_callee()
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; CHECK-ALL: declare void @did_not_throw(i32)
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declare void @did_not_throw(i32)
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declare void @thrown()
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; CHECK-ALL: define void @caller()
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define void @caller() personality ptr @__gxx_personality_v0 {
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; CHECK-ALL: bb:
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; CHECK-FINAL1-NEXT: br label %bb1
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bb:
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; CHECK-INTERESTINGNESS0: label %bb3
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; CHECK-FINAL0: br label %bb3
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%i0 = invoke i32 @maybe_throwing_callee()
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to label %bb3 unwind label %bb1
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bb1:
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landingpad { ptr, i32 } catch ptr null
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; CHECK-INTERESTINGNESS1: call void @thrown()
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; CHECK-FINAL1: bb1:
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; CHECK-FINAL1-NEXT: call void @thrown()
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; CHECK-FINAL1-NEXT: ret void
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call void @thrown()
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br label %bb4
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; CHECK-INTERESTINGNESS0: bb3:
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; CHECK-FINAL0: bb3:
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bb3:
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; CHECK-INTERESTINGNESS0: call void @did_not_throw(i32
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; CHECK-INTERESTINGNESS0: br label %bb4
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; CHECK-FINAL0: call void @did_not_throw(i32 0)
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; CHECK-FINAL0: br label %bb4
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call void @did_not_throw(i32 %i0)
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br label %bb4
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; RESULT0: bb4:
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; RESULT0-NEXT: ret void
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; CHECK-INTERESTINGNESS0: bb4:
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; CHECK-INTERESTINGNESS0-NEXT: ret void
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bb4:
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ret void
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}
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declare i32 @__gxx_personality_v0(...)
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