Remove alignment from deserted constant islands.
ARMConstantIslandPass may sometimes leave empty constant islands behind
(it really shouldn't). Remove the alignment from the empty islands so
the size calculations are still correct.
This should fix the many Thumb1 assembler errors in the nightly test
suite.
The reduced test case for this problem is way too big. That is to be
expected for ARMConstantIslandPass bugs.
<rdar://problem/10534709>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145970 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMConstantIslandPass.cpp b/lib/Target/ARM/ARMConstantIslandPass.cpp
index 017e908..c8b2fc1 100644
--- a/lib/Target/ARM/ARMConstantIslandPass.cpp
+++ b/lib/Target/ARM/ARMConstantIslandPass.cpp
@@ -1355,6 +1355,9 @@
Size += BBSizes[CPEBB->getNumber()];
BBSizes[CPEBB->getNumber()] = 0;
}
+
+ // This block no longer needs to be aligned. <rdar://problem/10534709>.
+ CPEBB->setAlignment(0);
}
AdjustBBOffsetsAfter(CPEBB, -Size);
// An island has only one predecessor BB and one successor BB. Check if