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author | Chad Rosier <mcrosier@apple.com> | 2013-02-18 21:46:28 +0000 |
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committer | Chad Rosier <mcrosier@apple.com> | 2013-02-18 21:46:28 +0000 |
commit | 848c25ddfa8530fd9349bdf5ed8a8633f27eb388 (patch) | |
tree | 2f8712d7e973b7e6880fc3a087226d966644d795 | |
parent | 6228999d826c87ac90344356c2d123361dc1d648 (diff) | |
download | external_llvm-848c25ddfa8530fd9349bdf5ed8a8633f27eb388.zip external_llvm-848c25ddfa8530fd9349bdf5ed8a8633f27eb388.tar.gz external_llvm-848c25ddfa8530fd9349bdf5ed8a8633f27eb388.tar.bz2 |
[fast-isel] Remove an invalid assert.
If the memcpy has an odd length with an alignment of 2, this would incorrectly
assert on the last 1 byte copy.
rdar://13202135
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175459 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/Target/ARM/ARMFastISel.cpp | 1 | ||||
-rw-r--r-- | test/CodeGen/ARM/fast-isel-intrinsic.ll | 7 |
2 files changed, 7 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMFastISel.cpp b/lib/Target/ARM/ARMFastISel.cpp index 022fe97..b545dbc 100644 --- a/lib/Target/ARM/ARMFastISel.cpp +++ b/lib/Target/ARM/ARMFastISel.cpp @@ -2458,7 +2458,6 @@ bool ARMFastISel::ARMTryEmitSmallMemCpy(Address Dest, Address Src, if (Len >= 2 && Alignment == 2) VT = MVT::i16; else { - assert (Alignment == 1 && "Expected an alignment of 1!"); VT = MVT::i8; } } diff --git a/test/CodeGen/ARM/fast-isel-intrinsic.ll b/test/CodeGen/ARM/fast-isel-intrinsic.ll index 7d38cc2..3128f5e 100644 --- a/test/CodeGen/ARM/fast-isel-intrinsic.ll +++ b/test/CodeGen/ARM/fast-isel-intrinsic.ll @@ -231,3 +231,10 @@ define void @t6() nounwind ssp { call void @llvm.memcpy.p0i8.p0i8.i32(i8* getelementptr inbounds ([60 x i8]* @temp, i32 0, i32 4), i8* getelementptr inbounds ([60 x i8]* @temp, i32 0, i32 16), i32 10, i32 1, i1 false) ret void } + +rdar://13202135 +define void @t7() nounwind ssp { +; Just make sure this doesn't assert when we have an odd length and an alignment of 2. + call void @llvm.memcpy.p0i8.p0i8.i32(i8* getelementptr inbounds ([60 x i8]* @temp, i32 0, i32 4), i8* getelementptr inbounds ([60 x i8]* @temp, i32 0, i32 16), i32 3, i32 2, i1 false) + ret void +} |