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llvm-mirror/test/Reduce/remove-bbs-unwinded-to.ll
Roman Lebedev c62f97f67d [Reduce] Basic block reduction: do properly handle invoke insts (PR46818)
Terminator may have returned value, so we need to replace uses,
and in general handle invoke as a branch inst.

I'm not sure this is the best handling, but IMO poorly reduced
input is much better than crashing reduction tool.
A (previously-crashing!) test added.

Fixes https://bugs.llvm.org/show_bug.cgi?id=46818
2020-07-26 01:28:59 +03:00

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1.0 KiB
LLVM

; RUN: llvm-reduce --test FileCheck --test-arg --check-prefixes=CHECK-ALL,CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t
; RUN: cat %t | FileCheck --check-prefixes=CHECK-ALL,CHECK-FINAL %s
declare i32 @maybe_throwing_callee()
; CHECK-ALL: declare void @did_not_throw(i32)
declare void @did_not_throw(i32)
declare void @thrown()
; CHECK-ALL: define void @caller()
define void @caller() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
; CHECK-ALL: bb:
bb:
; CHECK-INTERESTINGNESS: label %bb3
; CHECK-FINAL: br label %bb3
%i0 = invoke i32 @maybe_throwing_callee()
to label %bb3 unwind label %bb1
bb1:
landingpad { i8*, i32 } catch i8* null
call void @thrown()
br label %bb4
; CHECK-ALL: bb3:
bb3:
; CHECK-INTERESTINGNESS: call void @did_not_throw(i32
; CHECK-FINAL: call void @did_not_throw(i32 undef)
; CHECK-ALL: br label %bb4
call void @did_not_throw(i32 %i0)
br label %bb4
; CHECK-ALL: bb4:
; CHECK-ALL: ret void
bb4:
ret void
}
declare i32 @__gxx_personality_v0(...)