diff options
| -rw-r--r-- | lib/Target/ARM/README-Thumb.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/ARM/README-Thumb.txt b/lib/Target/ARM/README-Thumb.txt index c64457fe15..b0473da6a7 100644 --- a/lib/Target/ARM/README-Thumb.txt +++ b/lib/Target/ARM/README-Thumb.txt @@ -19,3 +19,7 @@ * If we know function size is less than (1 << 16) * 2 bytes, we can use 16-bit jumptable entries (e.g. (L1 - L2) >> 1). Or even smaller entries if the function is even smaller. This also applies to ARM. + +* In thumb mode, short, byte, and bool preferred alignments are currently set + to 4 to accommodate ISA restriction (i.e. add sp, #imm, imm must be multiple + of 4). |