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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33998 91177308-0d34-0410-b5e6-96231b3b80d8
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Evan Cheng
2007-02-07 08:37:57 +00:00
parent 7142f8755a
commit 1f253d6e97
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lib/Target/ARM/README-Thumb.txt
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@@ -141,3 +141,7 @@ cheaper sequnce if we know it's ok to clobber the condition register.
add r2, sp, #255 * 4 add r2, sp, #255 * 4
add r2, #132 add r2, #132
ldr r2, [r2, #7 * 4] ldr r2, [r2, #7 * 4]
This is especially bad when dynamic alloca is used. The all fixed size stack
objects are referenced off the frame pointer with negative offsets. See
oggenc for an example.