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(parent: d8a1624) | patch
In Thumb2 mode, lower frame indix references to:
authorEvan Cheng <evan.cheng@apple.com>
Fri, 22 Apr 2011 01:42:52 +0000 (01:42 +0000)
committerEvan Cheng <evan.cheng@apple.com>
Fri, 22 Apr 2011 01:42:52 +0000 (01:42 +0000)
commitdb6cbe1ff16d5f18bf2469fa53744e680944dc56
tree35d46c3921e98b06cf1efaefe174c9ae53948a58tree | snapshot
parentd8a16241229a6d3f761e2e9fd19cbe08e614f113commit | diff
In Thumb2 mode, lower frame indix references to:
add <rd>, sp, #<imm8>
ldr <rd>, [sp, #<imm8>]
When the offset from sp is multiple of 4 and in range of 0-1020.
This saves code size by utilizing 16-bit instructions.

rdar://9321541

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129971 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/ARM/ARMFrameLowering.cpp diff | blob | history
lib/Target/ARM/ARMFrameLowering.h diff | blob | history
test/CodeGen/Thumb2/2011-04-21-FILoweringBug.ll [new file with mode: 0644] blob
C/C++ LLVM-based compilers that forbids OOTA behaviors