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author | Bill Wendling <isanbard@gmail.com> | 2010-04-30 22:19:17 +0000 |
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committer | Bill Wendling <isanbard@gmail.com> | 2010-04-30 22:19:17 +0000 |
commit | d71bb562758c417e91ab05424cea93264b35c67a (patch) | |
tree | 45a208c99f5a1a511814fc166891f4464656c55f /test | |
parent | ee40a166c3c428b218cfdfc53ff130c7573e3bba (diff) | |
download | external_llvm-d71bb562758c417e91ab05424cea93264b35c67a.zip external_llvm-d71bb562758c417e91ab05424cea93264b35c67a.tar.gz external_llvm-d71bb562758c417e91ab05424cea93264b35c67a.tar.bz2 |
EXTRACT_VECTOR_ELT of an INSERT_VECTOR_ELT may have the same index, but the
indexes could be of a different value type. Or not even using the same SDNode
for the constant (weird, I know). Compare the actual values instead of the
pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102791 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r-- | test/CodeGen/X86/2010-04-30-VectorUnrollBug.ll | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2010-04-30-VectorUnrollBug.ll b/test/CodeGen/X86/2010-04-30-VectorUnrollBug.ll new file mode 100644 index 0000000..d072dc3 --- /dev/null +++ b/test/CodeGen/X86/2010-04-30-VectorUnrollBug.ll @@ -0,0 +1,85 @@ +; RUN: llc < %s -mtriple=x86_64-apple-darwin -disable-mmx | FileCheck %s +; <rdar://problem/7897988> + +define void @test1(i8** %a, i64* %b, i64 %c, i64 %d) nounwind { +entry: + %ptrtoarg37 = load i8** %a ; <i8*> [#uses=1] + %arglist1 = getelementptr i8** %a, i64 1 ; <i8**> [#uses=1] + %ptrtoarg238 = load i8** %arglist1 ; <i8*> [#uses=1] + %arglist4 = getelementptr i8** %a, i64 2 ; <i8**> [#uses=1] + %ptrtoarg539 = load i8** %arglist4 ; <i8*> [#uses=1] + %0 = load i64* %b ; <i64> [#uses=2] + br label %loop.cond + +loop.cond: ; preds = %loop, %entry + %iv = phi i64 [ %0, %entry ], [ %11, %loop ] ; <i64> [#uses=3] + %1 = icmp eq i64 %c, %iv ; <i1> [#uses=1] + br i1 %1, label %return, label %loop + +loop: ; preds = %loop.cond + %2 = bitcast i8* %ptrtoarg539 to i32 addrspace(1)* ; <i32 addrspace(1)*> [#uses=1] + %3 = bitcast i8* %ptrtoarg238 to i32 addrspace(1)* ; <i32 addrspace(1)*> [#uses=1] + %4 = bitcast i8* %ptrtoarg37 to i32 addrspace(1)* ; <i32 addrspace(1)*> [#uses=1] + %tmp1.i = load i64* addrspace(256)* inttoptr (i64 248 to i64* addrspace(256)*) ; <i64*> [#uses=1] + %tmp2.i = load i64* %tmp1.i ; <i64> [#uses=1] + %conv.i = trunc i64 %tmp2.i to i32 ; <i32> [#uses=1] + %conv1.i = sext i32 %conv.i to i64 ; <i64> [#uses=1] + %5 = bitcast i32 addrspace(1)* %4 to i32* ; <i32*> [#uses=2] + %i_times_3 = mul i64 %conv1.i, 3 ; <i64> [#uses=4] + %inptrA.i = getelementptr inbounds i32* %5, i64 %i_times_3 ; <i32*> [#uses=1] + %6 = bitcast i32* %inptrA.i to i64* ; <i64*> [#uses=1] + %i_times_3_plus_2 = add i64 %i_times_3, 2 ; <i64> [#uses=3] + %A.xy = load i64* %6 ; <i64> [#uses=1] + %inptrA.ip2 = getelementptr inbounds i32* %5, i64 %i_times_3_plus_2 ; <i32*> [#uses=1] + %A.xyuu = insertelement <2 x i64> undef, i64 %A.xy, i32 0 ; <<2 x i64>> [#uses=1] + %A.xy__ = insertelement <2 x i64> %A.xyuu, i64 0, i32 1 ; <<2 x i64>> [#uses=1] + %tmp13.i.i20 = bitcast <2 x i64> %A.xy__ to <4 x i32> ; <<4 x i32>> [#uses=1] + %A.z = load i32* %inptrA.ip2 ; <i32> [#uses=1] + +; The "movl" is the load of %A.z. The registers aren't important. Here are what they map to: +; +; %rbx -> %i_times_3 +; %r9 -> %5 +; %r9 + (%rbx + 2) * 4 -> %inptrA.ip2 +; 8(%r9,%rbx,4) -> *%inptrA.ip2 -> %A.z +; +; CHECK: sarl %cl, %r15d +; CHECK-NEXT: pinsrd $0, %r15d, %xmm3 +; CHECK-NEXT: pinsrd $1, %r14d, %xmm3 +; CHECK-NEXT: movl 8(%r9,%rbx,4), %r14d +; CHECK-NEXT: pextrd $2, %xmm2, %ecx + + %A.xyz_ = insertelement <4 x i32> %tmp13.i.i20, i32 %A.z, i32 2 ; <<4 x i32>> [#uses=1] + %A.xyz = shufflevector <4 x i32> %A.xyz_, <4 x i32> undef, <3 x i32> <i32 0, i32 1, i32 2> ; <<3 x i32>> [#uses=1] + %7 = bitcast i32 addrspace(1)* %3 to i32* ; <i32*> [#uses=2] + %add.ptr.i.i8 = getelementptr inbounds i32* %7, i64 %i_times_3 ; <i32*> [#uses=1] + %8 = bitcast i32* %add.ptr.i.i8 to i64* ; <i64*> [#uses=1] + %B.xy = load i64* %8 ; <i64> [#uses=1] + %arrayidx15.i.i = getelementptr inbounds i32* %7, i64 %i_times_3_plus_2 ; <i32*> [#uses=1] + %B.xyuu = insertelement <2 x i64> undef, i64 %B.xy, i32 0 ; <<2 x i64>> [#uses=1] + %B.z = load i32* %arrayidx15.i.i ; <i32> [#uses=1] + %vecinit2.i.i.i = insertelement <2 x i64> %B.xyuu, i64 0, i32 1 ; <<2 x i64>> [#uses=1] + %B.xy__ = bitcast <2 x i64> %vecinit2.i.i.i to <4 x i32> ; <<4 x i32>> [#uses=1] + %B.xyz_ = insertelement <4 x i32> %B.xy__, i32 %B.z, i32 2 ; <<4 x i32>> [#uses=1] + %B.xyz = shufflevector <4 x i32> %B.xyz_, <4 x i32> undef, <3 x i32> <i32 0, i32 1, i32 2> ; <<3 x i32>> [#uses=1] + %and.i = and <3 x i32> %B.xyz, <i32 31, i32 31, i32 31> ; <<3 x i32>> [#uses=1] + %shr.i = ashr <3 x i32> %A.xyz, %and.i ; <<3 x i32>> [#uses=2] + %9 = bitcast i32 addrspace(1)* %2 to i32* ; <i32*> [#uses=2] + %tmp3.i.i = shufflevector <3 x i32> %shr.i, <3 x i32> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef> ; <<4 x i32>> [#uses=1] + %add.ptr.i.i = getelementptr inbounds i32* %9, i64 %i_times_3 ; <i32*> [#uses=1] + %10 = bitcast i32* %add.ptr.i.i to i8* ; <i8*> [#uses=1] + call void @llvm.x86.sse2.storel.dq(i8* %10, <4 x i32> %tmp3.i.i) nounwind + %vecext.i.i.i = extractelement <3 x i32> %shr.i, i32 2 ; <i32> [#uses=1] + %arrayidx.i.i = getelementptr inbounds i32* %9, i64 %i_times_3_plus_2 ; <i32*> [#uses=1] + store i32 %vecext.i.i.i, i32* %arrayidx.i.i + %11 = add i64 %iv, %d ; <i64> [#uses=1] + %tmp = add i64 %d, %iv ; <i64> [#uses=1] + store i64 %tmp, i64* %b + br label %loop.cond + +return: ; preds = %loop.cond + store i64 %0, i64* %b + ret void +} + +declare void @llvm.x86.sse2.storel.dq(i8*, <4 x i32>) nounwind |