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Diffstat (limited to 'lib/Target/ARM/README-Thumb.txt')
| -rw-r--r-- | lib/Target/ARM/README-Thumb.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Target/ARM/README-Thumb.txt b/lib/Target/ARM/README-Thumb.txt index df94312d5f..a961a576f4 100644 --- a/lib/Target/ARM/README-Thumb.txt +++ b/lib/Target/ARM/README-Thumb.txt @@ -248,3 +248,9 @@ Make use of hi register variants of cmp: tCMPhir / tCMPZhir. Thumb1 immediate field sometimes keep pre-scaled values. See Thumb1RegisterInfo::eliminateFrameIndex. This is inconsistent from ARM and Thumb2. + +//===---------------------------------------------------------------------===// + +Rather than having tBR_JTr print a ".align 2" and constant island pass pad it, +add a target specific ALIGN instruction instead. That way, GetInstSizeInBytes +won't have to over-estimate. It can also be used for loop alignment pass. |