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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-01-03 22:42:33 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-01-03 22:42:33 +0000 |
| commit | ec0a2fb7037aab3eca8eacdfe85692d3c140a40f (patch) | |
| tree | 7d0831d213cec6f601a80cc89a52000ffb3078ee /llvm/test | |
| parent | 31abb45803d272b3fd211253f571047256ab2f19 (diff) | |
| download | bcm5719-llvm-ec0a2fb7037aab3eca8eacdfe85692d3c140a40f.tar.gz bcm5719-llvm-ec0a2fb7037aab3eca8eacdfe85692d3c140a40f.zip | |
[DAGCombine] Handle out of range EXTRACT_VECTOR_ELT indices
Handle this in DAGCombiner::visitEXTRACT_VECTOR_ELT the same as we already do in SelectionDAG::getNode and use APInt instead of getZExtValue.
This should also fix oss-fuzz #4910
llvm-svn: 321767
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/X86/extract-insert.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/extract-insert.ll b/llvm/test/CodeGen/X86/extract-insert.ll new file mode 100644 index 00000000000..823390e86d1 --- /dev/null +++ b/llvm/test/CodeGen/X86/extract-insert.ll @@ -0,0 +1,18 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=CHECK --check-prefix=X86 +; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=CHECK --check-prefix=X64 + +define i32 @extractelt_undef_insertelt(i32 %x, i32 %y) { +; X86-LABEL: extractelt_undef_insertelt: +; X86: # %bb.0: +; X86-NEXT: retl +; +; X64-LABEL: extractelt_undef_insertelt: +; X64: # %bb.0: +; X64-NEXT: retq + %b = insertelement <4 x i32> zeroinitializer, i32 %x, i64 3 + %c = icmp uge i32 %y, %y + %d = extractelement <4 x i32> %b, i1 %c + ret i32 %d +} + |
