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| author | Max Filippov <jcmvbkbc@gmail.com> | 2019-03-21 20:22:03 -0700 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2019-03-21 21:47:50 -0700 |
| commit | b9ec52188f1eafb2901d37a57727bbf1d8bbe3ca (patch) | |
| tree | 9fc0259f9fa49c37ef235806cc953ccb8a534e3b /tests/tcg/xtensa | |
| parent | 62a172e6a77d9072bb1a18f295ce0fcf4b90a4f2 (diff) | |
target/xtensa: fix break_dependency for repeated resources
break_dependency incorrectly handles the case of dependency on an opcode
that references the same register multiple times. E.g. the following
instruction is translated incorrectly:
{ or a2, a3, a3 ; or a3, a2, a2 }
This happens because resource indices of both dependency graph nodes are
incremented, and a copy for the second instance of the same register in
the ending node is not done.
Only increment resource index of the ending node of the dependency.
Add test.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'tests/tcg/xtensa')
| -rw-r--r-- | tests/tcg/xtensa/test_flix.S | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tests/tcg/xtensa/test_flix.S b/tests/tcg/xtensa/test_flix.S index 7c259e7018..7af06b2b88 100644 --- a/tests/tcg/xtensa/test_flix.S +++ b/tests/tcg/xtensa/test_flix.S @@ -55,6 +55,23 @@ test sum .previous test_end +test rep_dependency + + { + movi a2, 1 + movi a3, 2 + nop + } + { + or a2, a3, a3 + or a3, a2, a2 + nop + } + assert eqi, a2, 2 + assert eqi, a3, 1 + +test_end + #endif test_suite_end |