[sanitizers] Make it possible to XFAIL on the effective target, not just the default.
Summary:
The triple is not the right thing to XFAIL on since LIT only sees the default
triple and not the effective triple chosen by any -target option in the RUN
directives. This discrepancy is shown in the table below:
Default Triple | Options | XFAIL | LIT's expected result | Desired expectation
=================+===================================+========+=======================+====================
mips-linux-gnu | -target mips-linux-gnu | | Pass | Pass
mips-linux-gnu | -target mips64-linux-gnu -mabi=64 | | Pass | Pass
mips-linux-gnu | -target mips-linux-gnu | mips | Fail | Fail
mips-linux-gnu | -target mips64-linux-gnu -mabi=64 | mips | Fail | Fail/Pass* (debatable**)
mips-linux-gnu | -target mips-linux-gnu | mips- | Fail | Fail
mips-linux-gnu | -target mips64-linux-gnu -mabi=64 | mips- | Fail | Pass*
mips-linux-gnu | -target mips-linux-gnu | mips64 | Pass | Pass
mips-linux-gnu | -target mips64-linux-gnu -mabi=64 | mips64 | Pass | Fail*
mips64-linux-gnu | -target mips-linux-gnu | | Pass | Pass
mips64-linux-gnu | -target mips64-linux-gnu -mabi=64 | | Pass | Pass
mips64-linux-gnu | -target mips-linux-gnu | mips | Fail | Fail*
mips64-linux-gnu | -target mips64-linux-gnu -mabi=64 | mips | Fail | Fail/Pass (debatable**)
mips64-linux-gnu | -target mips-linux-gnu | mips- | Pass | Fail*
mips64-linux-gnu | -target mips64-linux-gnu -mabi=64 | mips- | Pass | Pass
mips64-linux-gnu | -target mips-linux-gnu | mips64 | Fail | Pass*
mips64-linux-gnu | -target mips64-linux-gnu -mabi=64 | mips64 | Fail | Fail
x64_64-linux-gnu | -target i386-linux-gnu | | Pass | Pass
x64_64-linux-gnu | -target x86_64-linux-gnu | | Pass | Pass
x64_64-linux-gnu | -target i386-linux-gnu | i386 | Pass | Fail*
x64_64-linux-gnu | -target x86_64-linux-gnu | i386 | Pass | Pass
x64_64-linux-gnu | -target i386-linux-gnu | x86_64 | Fail | Pass
x64_64-linux-gnu | -target x86_64-linux-gnu | x86_64 | Fail | Fail*
* These all differ from LIT's current behaviour.
** People's expectations vary depending on whether they know that LIT does a
substring match on the default triple or think it's an exact match on an
architecture.
This patch adds "target-is-${target_arch}" to the available features list and
updates the mips XFAIL's to use them. XFAIL'ing on these features will
correctly account for the target being tested. Making the table:
Options | XFAIL | LIT's expected result
==================================+==================+======================
-target mips-linux-gnu | | Pass
-target mips64-linux-gnu -mabi=64 | | Pass
-target mips-linux-gnu | target-is-mips | Fail
-target mips64-linux-gnu -mabi=64 | target-is-mips | Pass
-target mips-linux-gnu | target-is-mips64 | Pass
-target mips64-linux-gnu -mabi=64 | target-is-mips64 | Fail
-target i386-linux-gnu | | Pass
-target x86_64-linux-gnu | | Pass
-target i386-linux-gnu | target-is-i386 | Fail
-target x86_64-linux-gnu | target-is-i386 | Pass
-target i386-linux-gnu | target-is-x86_64 | Pass
-target x86_64-linux-gnu | target-is-x86_64 | Fail
Reviewers: probinson
Subscribers: probinson, kubabrecka, llvm-commits, samsonov
Differential Revision: https://reviews.llvm.org/D22802
llvm-svn: 278116
dc213305e9