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llvm-mirror/test/Transforms/LowerSwitch/delete-default-block-crash.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

28 lines
490 B
LLVM

; RUN: opt < %s -lowerswitch -disable-output
; This test verify -lowerswitch does not crash after deleting the default block.
declare i32 @f(i32)
define i32 @unreachable(i32 %x) {
entry:
switch i32 %x, label %unreachable [
i32 5, label %a
i32 6, label %a
i32 7, label %a
i32 10, label %b
i32 20, label %b
i32 30, label %b
i32 40, label %b
]
unreachable:
unreachable
a:
%0 = call i32 @f(i32 0)
ret i32 %0
b:
%1 = call i32 @f(i32 1)
ret i32 %1
}