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| author | Chandler Carruth <chandlerc@gmail.com> | 2012-10-15 10:24:40 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2012-10-15 10:24:40 +0000 |
| commit | 94fc64c42fe27aa16dd5611eb3657ff0297801c8 (patch) | |
| tree | ad6b5f27e03ea0c56e668476967d4ca145abdbe7 /test/Transforms | |
| parent | bb1078ea1370fd0cc32f52b1b53f0b245ded42e7 (diff) | |
| download | llvm-94fc64c42fe27aa16dd5611eb3657ff0297801c8.tar.gz llvm-94fc64c42fe27aa16dd5611eb3657ff0297801c8.tar.bz2 llvm-94fc64c42fe27aa16dd5611eb3657ff0297801c8.tar.xz | |
Follow-up fix to r165928: handle memset rewriting for widened integers,
and generally clean up the memset handling. It had rotted a bit as the
other rewriting logic got polished more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165930 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/SROA/basictest.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/Transforms/SROA/basictest.ll b/test/Transforms/SROA/basictest.ll index 4a87d911e2..b33ffa65f6 100644 --- a/test/Transforms/SROA/basictest.ll +++ b/test/Transforms/SROA/basictest.ll @@ -1034,11 +1034,24 @@ entry: %X.sroa.0.i = alloca double, align 8 %0 = bitcast double* %X.sroa.0.i to i8* call void @llvm.lifetime.start(i64 -1, i8* %0) + + ; Store to the low 32-bits... %X.sroa.0.0.cast2.i = bitcast double* %X.sroa.0.i to i32* store i32 0, i32* %X.sroa.0.0.cast2.i, align 8 + + ; Also use a memset to the middle 32-bits for fun. + %X.sroa.0.2.raw_idx2.i = getelementptr inbounds i8* %0, i32 2 + call void @llvm.memset.p0i8.i64(i8* %X.sroa.0.2.raw_idx2.i, i8 0, i64 4, i32 1, i1 false) + + ; Or a memset of the whole thing. + call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 8, i32 1, i1 false) + + ; Store to the high 32-bits... %X.sroa.0.4.raw_idx4.i = getelementptr inbounds i8* %0, i32 4 %X.sroa.0.4.cast5.i = bitcast i8* %X.sroa.0.4.raw_idx4.i to i32* store i32 1072693248, i32* %X.sroa.0.4.cast5.i, align 4 + + ; Do the actual math... %X.sroa.0.0.load1.i = load double* %X.sroa.0.i, align 8 %accum.real.i = load double* %d, align 8 %add.r.i = fadd double %accum.real.i, %X.sroa.0.0.load1.i |