diff options
Diffstat (limited to 'llvm/test/CodeGen/ARM/ParallelDSP/smlad9.ll')
| -rw-r--r-- | llvm/test/CodeGen/ARM/ParallelDSP/smlad9.ll | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM/ParallelDSP/smlad9.ll b/llvm/test/CodeGen/ARM/ParallelDSP/smlad9.ll new file mode 100644 index 00000000000..ac88adc2662 --- /dev/null +++ b/llvm/test/CodeGen/ARM/ParallelDSP/smlad9.ll @@ -0,0 +1,45 @@ +; RUN: opt -mtriple=arm-arm-eabi -mcpu=cortex-m33 < %s -arm-parallel-dsp -S | FileCheck %s +; +; Muls with operands that are constants: not yet supported, so the rewrite +; should not trigger (but we do want to add this soon). +; +; CHECK-NOT: call i32 @llvm.arm.smlad +; +define dso_local i32 @test(i32 %arg, i32* nocapture readnone %arg1, i16* nocapture readonly %arg2, i16* nocapture readonly %arg3) { +entry: + %cmp24 = icmp sgt i32 %arg, 0 + br i1 %cmp24, label %for.body.preheader, label %for.cond.cleanup + +for.body.preheader: + %.pre = load i16, i16* %arg3, align 2 + %.pre27 = load i16, i16* %arg2, align 2 + br label %for.body + +for.cond.cleanup: + %mac1.0.lcssa = phi i32 [ 0, %entry ], [ %add11, %for.body ] + ret i32 %mac1.0.lcssa + +for.body: + %mac1.026 = phi i32 [ %add11, %for.body ], [ 0, %for.body.preheader ] + %i.025 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ] + %add = add nuw nsw i32 %i.025, 1 + %arrayidx3 = getelementptr inbounds i16, i16* %arg2, i32 %i.025 + %v2 = load i16, i16* %arrayidx3, align 2 + %conv = sext i16 %v2 to i32 + +; RHS operand of this mul is a constant + %mul = mul nsw i32 %conv, 43 + + %arrayidx6 = getelementptr inbounds i16, i16* %arg2, i32 %add + %v3 = load i16, i16* %arrayidx6, align 2 + %conv7 = sext i16 %v3 to i32 + +; And this RHS operand is a constant too. + %mul9 = mul nsw i32 %conv7, 42 + + %add10 = add i32 %mul, %mac1.026 + %add11 = add i32 %mul9, %add10 + %exitcond = icmp ne i32 %add, %arg + br i1 %exitcond, label %for.body, label %for.cond.cleanup +} + |
