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| author | Jim Grosbach <grosbach@apple.com> | 2013-03-07 05:47:54 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2013-03-07 05:47:54 +0000 |
| commit | 34fd0d2b93edb3ddefe5c5766073273f86b23b78 (patch) | |
| tree | 64fbf0c2d59c25afe84b15894fca3367a5069fe0 /test/CodeGen/Thumb2 | |
| parent | 218042a02305a3cc38d968a97ff9ecf4b4abe6ff (diff) | |
| download | external_llvm-34fd0d2b93edb3ddefe5c5766073273f86b23b78.zip external_llvm-34fd0d2b93edb3ddefe5c5766073273f86b23b78.tar.gz external_llvm-34fd0d2b93edb3ddefe5c5766073273f86b23b78.tar.bz2 | |
SDAG: Handle scalarizing an extend of a <1 x iN> vector.
Just scalarize the element and rebuild a vector of the result type
from that.
rdar://13281568
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176614 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb2')
| -rw-r--r-- | test/CodeGen/Thumb2/2013-03-06-vector-sext-operand-scalarize.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb2/2013-03-06-vector-sext-operand-scalarize.ll b/test/CodeGen/Thumb2/2013-03-06-vector-sext-operand-scalarize.ll new file mode 100644 index 0000000..203815f --- /dev/null +++ b/test/CodeGen/Thumb2/2013-03-06-vector-sext-operand-scalarize.ll @@ -0,0 +1,19 @@ +; RUN: llc < %s -mtriple=thumbv7-apple-darwin | FileCheck %s + +; Testing that these don't crash/assert. The loop vectorizer can end up +; with odd constructs like this. The code actually generated is incidental. +define <1 x i64> @test_zext(i32 %a) nounwind { +; CHECK: test_zext: + %Cmp = icmp uge i32 %a, 42 + %vec = insertelement <1 x i1> zeroinitializer, i1 %Cmp, i32 0 + %Se = zext <1 x i1> %vec to <1 x i64> + ret <1 x i64> %Se +} + +define <1 x i64> @test_sext(i32 %a) nounwind { +; CHECK: test_sext: + %Cmp = icmp uge i32 %a, 42 + %vec = insertelement <1 x i1> zeroinitializer, i1 %Cmp, i32 0 + %Se = sext <1 x i1> %vec to <1 x i64> + ret <1 x i64> %Se +} |