linux-packaging-mono/external/llvm/test/Other/2002-02-24-InlineBrokePHINodes.ll
Xamarin Public Jenkins (auto-signing) 8625704ad8 Imported Upstream version 5.18.0.179
Former-commit-id: 67aa10e65b237e1c4537630979ee99ebe1374215
2018-10-25 08:34:57 +00:00

24 lines
583 B
LLVM

; Inlining used to break PHI nodes. This tests that they are correctly updated
; when a node is split around the call instruction. The verifier caught the error.
;
; RUN: opt < %s -inline
;
define i64 @test(i64 %X) {
ret i64 %X
}
define i64 @fib(i64 %n) {
; <label>:0
%T = icmp ult i64 %n, 2 ; <i1> [#uses=1]
br i1 %T, label %BaseCase, label %RecurseCase
RecurseCase: ; preds = %0
%result = call i64 @test( i64 %n ) ; <i64> [#uses=0]
br label %BaseCase
BaseCase: ; preds = %RecurseCase, %0
%X = phi i64 [ 1, %0 ], [ 2, %RecurseCase ] ; <i64> [#uses=1]
ret i64 %X
}