summaryrefslogtreecommitdiffstats
path: root/llvm/lib
diff options
context:
space:
mode:
authorEvan Cheng <evan.cheng@apple.com>2007-01-31 22:11:38 +0000
committerEvan Cheng <evan.cheng@apple.com>2007-01-31 22:11:38 +0000
commit2e309b15a71fbd746f47b19357717c5833686b31 (patch)
treed1ecae773ce6680bf9e3068b1cfdeb36afab4663 /llvm/lib
parent1c5837dc4aba30764ffea7c481015f23867ba385 (diff)
downloadbcm5719-llvm-2e309b15a71fbd746f47b19357717c5833686b31.tar.gz
bcm5719-llvm-2e309b15a71fbd746f47b19357717c5833686b31.zip
Add entry.
llvm-svn: 33723
Diffstat (limited to 'llvm/lib')
-rw-r--r--llvm/lib/Target/ARM/README-Thumb.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/README-Thumb.txt b/llvm/lib/Target/ARM/README-Thumb.txt
index c64457fe153..b0473da6a71 100644
--- a/llvm/lib/Target/ARM/README-Thumb.txt
+++ b/llvm/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).
OpenPOWER on IntegriCloud