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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-31 03:54:44 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-31 03:54:44 +0000 |
| commit | ae044c06bf530c0aaf5038c7e69b202e350a8fbd (patch) | |
| tree | bc0c26bce8ee407733aee1e23bbc61d5ac81814c /llvm/lib/CodeGen/InlineSpiller.cpp | |
| parent | b5c6a3e50a0375fe0493ec801c74abdedcebb5d9 (diff) | |
| download | bcm5719-llvm-ae044c06bf530c0aaf5038c7e69b202e350a8fbd.tar.gz bcm5719-llvm-ae044c06bf530c0aaf5038c7e69b202e350a8fbd.zip | |
Pick a conservative register class when creating a small live range for remat.
The rematerialized instruction may require a more constrained register class
than the register being spilled. In the test case, the spilled register has been
inflated to the DPR register class, but we are rematerializing a load of the
ssub_0 sub-register which only exists for DPR_VFP2 registers.
The register class is reinflated after spilling, so the conservative choice is
only temporary.
llvm-svn: 128610
Diffstat (limited to 'llvm/lib/CodeGen/InlineSpiller.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/InlineSpiller.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/InlineSpiller.cpp b/llvm/lib/CodeGen/InlineSpiller.cpp index d0c750777f3..86f4cfcc92f 100644 --- a/llvm/lib/CodeGen/InlineSpiller.cpp +++ b/llvm/lib/CodeGen/InlineSpiller.cpp @@ -627,7 +627,7 @@ bool InlineSpiller::reMaterializeFor(LiveInterval &VirtReg, } // Alocate a new register for the remat. - LiveInterval &NewLI = Edit->createFrom(VirtReg.reg, LIS, VRM); + LiveInterval &NewLI = Edit->createFrom(Original, LIS, VRM); NewLI.markNotSpillable(); // Finally we can rematerialize OrigMI before MI. |
