[PATCH] Insert tbb/tbh optimization where previous jump table resided

[Daniel Stewart]

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  rL LLVM

================
Comment at: test/CodeGen/Thumb2/constant-islands-jump-table.ll:45
@@ +44,3 @@
+  %d2 = phi i32 [%b1, %h1], [%a0, %h2]
+  %d3 = add i32 %d2, 8
+  %d4 = add i32 %d3, %d3
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t.p.northover wrote:
> There's an @llvm.arm.space intrinsic now. It acts as an "instruction" of the precise size you specify. It's probably clearer and more efficient than putting in just the right number of real instructions.
I didn't know about that! I'll redo the test. Thanks.

http://reviews.llvm.org/D6621

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