#3983: -O2 makes exception disappear
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Reporter: benjamin_scarlet | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 6.12.1 | Keywords: exception optimization
Os: Unknown/Multiple | Testcase:
Architecture: x86_64 (amd64) | Failure: None/Unknown
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Comment(by benjamin_scarlet):
The Bar module has two functions, one to throw an exception and one to
catch it.
Think "boiled down HUnit": the throw is a boiled down assert, the catch is
a boiled down test-runner function.
The Foo module has a function which conditionally uses the throw function
with conditionally-chosen data. Think "boiled down test case." With the
arguments given, the test should fail.
The Test module contains main, which calls the function in Foo so as to
cause an exception, and tries to catch that exception. Think "test
driver".
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3983#comment:1>
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