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| author | Andrew Trick <atrick@apple.com> | 2011-04-23 03:55:32 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2011-04-23 03:55:32 +0000 |
| commit | 1c3af779fc6b184204efd7e98dc16e475c251e7f (patch) | |
| tree | d9ca1d20f7c3930939492236cac207ad0c5e0fc9 /test/CodeGen/Thumb2/thumb2-sub5.ll | |
| parent | 1611bcd6acd685052eae9927f3ffbbfc917f1233 (diff) | |
| download | llvm-1c3af779fc6b184204efd7e98dc16e475c251e7f.tar.gz llvm-1c3af779fc6b184204efd7e98dc16e475c251e7f.tar.bz2 llvm-1c3af779fc6b184204efd7e98dc16e475c251e7f.tar.xz | |
Thumb2 and ARM add/subtract with carry fixes.
Fixes Thumb2 ADCS and SBCS lowering: <rdar://problem/9275821>.
t2ADCS/t2SBCS are now pseudo instructions, consistent with ARM, so the
assembly printer correctly prints the 's' suffix.
Fixes Thumb2 adde -> SBC matching to check for live/dead carry flags.
Fixes the internal ARM machine opcode mnemonic for ADCS/SBCS.
Fixes ARM SBC lowering to check for live carry (potential bug).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130048 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb2/thumb2-sub5.ll')
| -rw-r--r-- | test/CodeGen/Thumb2/thumb2-sub5.ll | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/test/CodeGen/Thumb2/thumb2-sub5.ll b/test/CodeGen/Thumb2/thumb2-sub5.ll index c3b56bc09c..6edd789bee 100644 --- a/test/CodeGen/Thumb2/thumb2-sub5.ll +++ b/test/CodeGen/Thumb2/thumb2-sub5.ll @@ -1,9 +1,10 @@ -; RUN: llc < %s -march=thumb -mattr=+thumb2 | FileCheck %s +; RUN: llc < %s -march=thumb -mattr=+thumb2 -mattr=+32bit | FileCheck %s define i64 @f1(i64 %a, i64 %b) { ; CHECK: f1: -; CHECK: subs r0, r0, r2 -; CHECK: sbcs r1, r3 +; CHECK: subs.w r0, r0, r2 +; To test dead_carry, +32bit prevents sbc conveting to 16-bit sbcs +; CHECK: sbc.w r1, r1, r3 %tmp = sub i64 %a, %b ret i64 %tmp } |