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Diffstat (limited to 'test/Transforms/LoopReroll/reduction.ll')
-rw-r--r-- | test/Transforms/LoopReroll/reduction.ll | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/test/Transforms/LoopReroll/reduction.ll b/test/Transforms/LoopReroll/reduction.ll new file mode 100644 index 0000000000..aed7670b66 --- /dev/null +++ b/test/Transforms/LoopReroll/reduction.ll @@ -0,0 +1,96 @@ +; RUN: opt < %s -loop-reroll -S | FileCheck %s +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +define i32 @foo(i32* nocapture readonly %x) #0 { +entry: + br label %for.body + +for.body: ; preds = %entry, %for.body + %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] + %r.029 = phi i32 [ 0, %entry ], [ %add12, %for.body ] + %arrayidx = getelementptr inbounds i32* %x, i64 %indvars.iv + %0 = load i32* %arrayidx, align 4 + %add = add nsw i32 %0, %r.029 + %1 = or i64 %indvars.iv, 1 + %arrayidx3 = getelementptr inbounds i32* %x, i64 %1 + %2 = load i32* %arrayidx3, align 4 + %add4 = add nsw i32 %add, %2 + %3 = or i64 %indvars.iv, 2 + %arrayidx7 = getelementptr inbounds i32* %x, i64 %3 + %4 = load i32* %arrayidx7, align 4 + %add8 = add nsw i32 %add4, %4 + %5 = or i64 %indvars.iv, 3 + %arrayidx11 = getelementptr inbounds i32* %x, i64 %5 + %6 = load i32* %arrayidx11, align 4 + %add12 = add nsw i32 %add8, %6 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 4 + %7 = trunc i64 %indvars.iv.next to i32 + %cmp = icmp slt i32 %7, 400 + br i1 %cmp, label %for.body, label %for.end + +; CHECK-LABEL: @foo + +; CHECK: for.body: +; CHECK: %indvar = phi i64 [ %indvar.next, %for.body ], [ 0, %entry ] +; CHECK: %r.029 = phi i32 [ 0, %entry ], [ %add, %for.body ] +; CHECK: %arrayidx = getelementptr inbounds i32* %x, i64 %indvar +; CHECK: %0 = load i32* %arrayidx, align 4 +; CHECK: %add = add nsw i32 %0, %r.029 +; CHECK: %indvar.next = add i64 %indvar, 1 +; CHECK: %exitcond = icmp eq i64 %indvar.next, 400 +; CHECK: br i1 %exitcond, label %for.end, label %for.body + +; CHECK: ret + +for.end: ; preds = %for.body + ret i32 %add12 +} + +define float @bar(float* nocapture readonly %x) #0 { +entry: + br label %for.body + +for.body: ; preds = %entry, %for.body + %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] + %r.029 = phi float [ 0.0, %entry ], [ %add12, %for.body ] + %arrayidx = getelementptr inbounds float* %x, i64 %indvars.iv + %0 = load float* %arrayidx, align 4 + %add = fadd float %0, %r.029 + %1 = or i64 %indvars.iv, 1 + %arrayidx3 = getelementptr inbounds float* %x, i64 %1 + %2 = load float* %arrayidx3, align 4 + %add4 = fadd float %add, %2 + %3 = or i64 %indvars.iv, 2 + %arrayidx7 = getelementptr inbounds float* %x, i64 %3 + %4 = load float* %arrayidx7, align 4 + %add8 = fadd float %add4, %4 + %5 = or i64 %indvars.iv, 3 + %arrayidx11 = getelementptr inbounds float* %x, i64 %5 + %6 = load float* %arrayidx11, align 4 + %add12 = fadd float %add8, %6 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 4 + %7 = trunc i64 %indvars.iv.next to i32 + %cmp = icmp slt i32 %7, 400 + br i1 %cmp, label %for.body, label %for.end + +; CHECK-LABEL: @bar + +; CHECK: for.body: +; CHECK: %indvar = phi i64 [ %indvar.next, %for.body ], [ 0, %entry ] +; CHECK: %r.029 = phi float [ 0.000000e+00, %entry ], [ %add, %for.body ] +; CHECK: %arrayidx = getelementptr inbounds float* %x, i64 %indvar +; CHECK: %0 = load float* %arrayidx, align 4 +; CHECK: %add = fadd float %0, %r.029 +; CHECK: %indvar.next = add i64 %indvar, 1 +; CHECK: %exitcond = icmp eq i64 %indvar.next, 400 +; CHECK: br i1 %exitcond, label %for.end, label %for.body + +; CHECK: ret + +for.end: ; preds = %for.body + ret float %add12 +} + +attributes #0 = { nounwind readonly uwtable } + |