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| author | Stephen Hines <srhines@google.com> | 2014-12-01 14:51:49 -0800 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2014-12-02 16:08:10 -0800 |
| commit | 37ed9c199ca639565f6ce88105f9e39e898d82d0 (patch) | |
| tree | 8fb36d3910e3ee4c4e1b7422f4f017108efc52f5 /test/CodeGen/ARM/smulw.ll | |
| parent | d2327b22152ced7bc46dc629fc908959e8a52d03 (diff) | |
| download | external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.gz external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.bz2 external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.zip | |
Update aosp/master LLVM for rebase to r222494.
Change-Id: Ic787f5e0124df789bd26f3f24680f45e678eef2d
Diffstat (limited to 'test/CodeGen/ARM/smulw.ll')
| -rw-r--r-- | test/CodeGen/ARM/smulw.ll | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/smulw.ll b/test/CodeGen/ARM/smulw.ll new file mode 100644 index 0000000000..8653903eee --- /dev/null +++ b/test/CodeGen/ARM/smulw.ll @@ -0,0 +1,26 @@ +; RUN: llc -mtriple=arm--none-eabi -mcpu=cortex-a8 %s -o - | FileCheck %s +; RUN: llc -mtriple=thumb--none-eabi -mcpu=cortex-a8 %s -o - | FileCheck %s + +; We cannot codegen the smulw[bt] or smlaw[bt] instructions for these functions, +; as the top 16 bits of the result would differ + +define i32 @f1(i32 %a, i16 %b) { +; CHECK-LABEL: f1: +; CHECK: mul +; CHECK: asr + %tmp1 = sext i16 %b to i32 + %tmp2 = mul i32 %a, %tmp1 + %tmp3 = ashr i32 %tmp2, 16 + ret i32 %tmp3 +} + +define i32 @f2(i32 %a, i16 %b, i32 %c) { +; CHECK-LABEL: f2: +; CHECK: mul +; CHECK: add{{.*}}, asr #16 + %tmp1 = sext i16 %b to i32 + %tmp2 = mul i32 %a, %tmp1 + %tmp3 = ashr i32 %tmp2, 16 + %tmp4 = add i32 %tmp3, %c + ret i32 %tmp4 +} |