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| author | Bob Wilson <bob.wilson@apple.com> | 2010-09-21 21:54:27 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2010-09-21 21:54:27 +0000 |
| commit | 4ddcb6a6b466802d52d4835312679c6458a2e2c5 (patch) | |
| tree | 5a5e96170cc03a23cbd877fbd48f46ce82334873 /llvm/lib | |
| parent | ff714f9992c171d54341afb6cb998d7fc23e9bd2 (diff) | |
| download | bcm5719-llvm-4ddcb6a6b466802d52d4835312679c6458a2e2c5.tar.gz bcm5719-llvm-4ddcb6a6b466802d52d4835312679c6458a2e2c5.zip | |
Move a sign-extend or a zero-extend of a load to the same basic block as the
load when the type of the load is not legal, even if truncates are not free.
The load is going to be legalized to an extending load anyway.
llvm-svn: 114488
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp b/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp index 0e05a26d243..526107c9770 100644 --- a/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp +++ b/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp @@ -772,7 +772,8 @@ bool CodeGenPrepare::MoveExtToFormExtLoad(Instruction *I) { // If the load has other users and the truncate is not free, this probably // isn't worthwhile. if (!LI->hasOneUse() && - TLI && !TLI->isTruncateFree(I->getType(), LI->getType())) + TLI && TLI->isTypeLegal(TLI->getValueType(LI->getType())) && + !TLI->isTruncateFree(I->getType(), LI->getType())) return false; // Check whether the target supports casts folded into loads. |
