diff options
Diffstat (limited to 'test/Transforms/SLPVectorizer/X86/addsub.ll')
| -rw-r--r-- | test/Transforms/SLPVectorizer/X86/addsub.ll | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/test/Transforms/SLPVectorizer/X86/addsub.ll b/test/Transforms/SLPVectorizer/X86/addsub.ll index 174d400..d082b07 100644 --- a/test/Transforms/SLPVectorizer/X86/addsub.ll +++ b/test/Transforms/SLPVectorizer/X86/addsub.ll @@ -10,6 +10,7 @@ target triple = "x86_64-unknown-linux-gnu" @fb = common global [4 x float] zeroinitializer, align 16 @fc = common global [4 x float] zeroinitializer, align 16 @fa = common global [4 x float] zeroinitializer, align 16 +@fd = common global [4 x float] zeroinitializer, align 16 ; CHECK-LABEL: @addsub ; CHECK: %5 = add nsw <4 x i32> %3, %4 @@ -177,5 +178,137 @@ entry: ret void } +; Check vectorization of following code for float data type- +; fc[0] = fb[0]+fa[0]; //swapped fb and fa +; fc[1] = fa[1]-fb[1]; +; fc[2] = fa[2]+fb[2]; +; fc[3] = fa[3]-fb[3]; + +; CHECK-LABEL: @reorder_alt +; CHECK: %3 = fadd <4 x float> %1, %2 +; CHECK: %4 = fsub <4 x float> %1, %2 +; CHECK: %5 = shufflevector <4 x float> %3, <4 x float> %4, <4 x i32> <i32 0, i32 5, i32 2, i32 7> +define void @reorder_alt() #0 { + %1 = load float* getelementptr inbounds ([4 x float]* @fb, i32 0, i64 0), align 4 + %2 = load float* getelementptr inbounds ([4 x float]* @fa, i32 0, i64 0), align 4 + %3 = fadd float %1, %2 + store float %3, float* getelementptr inbounds ([4 x float]* @fc, i32 0, i64 0), align 4 + %4 = load float* getelementptr inbounds ([4 x float]* @fa, i32 0, i64 1), align 4 + %5 = load float* getelementptr inbounds ([4 x float]* @fb, i32 0, i64 1), align 4 + %6 = fsub float %4, %5 + store float %6, float* getelementptr inbounds ([4 x float]* @fc, i32 0, i64 1), align 4 + %7 = load float* getelementptr inbounds ([4 x float]* @fa, i32 0, i64 2), align 4 + %8 = load float* getelementptr inbounds ([4 x float]* @fb, i32 0, i64 2), align 4 + %9 = fadd float %7, %8 + store float %9, float* getelementptr inbounds ([4 x float]* @fc, i32 0, i64 2), align 4 + %10 = load float* getelementptr inbounds ([4 x float]* @fa, i32 0, i64 3), align 4 + %11 = load float* getelementptr inbounds ([4 x float]* @fb, i32 0, i64 3), align 4 + %12 = fsub float %10, %11 + store float %12, float* getelementptr inbounds ([4 x float]* @fc, i32 0, i64 3), align 4 + ret void +} + +; Check vectorization of following code for float data type- +; fc[0] = fa[0]+(fb[0]-fd[0]); +; fc[1] = fa[1]-(fb[1]+fd[1]); +; fc[2] = fa[2]+(fb[2]-fd[2]); +; fc[3] = fa[3]-(fd[3]+fb[3]); //swapped fd and fb + +; CHECK-LABEL: @reorder_alt_subTree +; CHECK: %4 = fsub <4 x float> %3, %2 +; CHECK: %5 = fadd <4 x float> %3, %2 +; CHECK: %6 = shufflevector <4 x float> %4, <4 x float> %5, <4 x i32> <i32 0, i32 5, i32 2, i32 7> +; CHECK: %7 = fadd <4 x float> %1, %6 +; CHECK: %8 = fsub <4 x float> %1, %6 +; CHECK: %9 = shufflevector <4 x float> %7, <4 x float> %8, <4 x i32> <i32 0, i32 5, i32 2, i32 7> +define void @reorder_alt_subTree() #0 { + %1 = load float* getelementptr inbounds ([4 x float]* @fa, i32 0, i64 0), align 4 + %2 = load float* getelementptr inbounds ([4 x float]* @fb, i32 0, i64 0), align 4 + %3 = load float* getelementptr inbounds ([4 x float]* @fd, i32 0, i64 0), align 4 + %4 = fsub float %2, %3 + %5 = fadd float %1, %4 + store float %5, float* getelementptr inbounds ([4 x float]* @fc, i32 0, i64 0), align 4 + %6 = load float* getelementptr inbounds ([4 x float]* @fa, i32 0, i64 1), align 4 + %7 = load float* getelementptr inbounds ([4 x float]* @fb, i32 0, i64 1), align 4 + %8 = load float* getelementptr inbounds ([4 x float]* @fd, i32 0, i64 1), align 4 + %9 = fadd float %7, %8 + %10 = fsub float %6, %9 + store float %10, float* getelementptr inbounds ([4 x float]* @fc, i32 0, i64 1), align 4 + %11 = load float* getelementptr inbounds ([4 x float]* @fa, i32 0, i64 2), align 4 + %12 = load float* getelementptr inbounds ([4 x float]* @fb, i32 0, i64 2), align 4 + %13 = load float* getelementptr inbounds ([4 x float]* @fd, i32 0, i64 2), align 4 + %14 = fsub float %12, %13 + %15 = fadd float %11, %14 + store float %15, float* getelementptr inbounds ([4 x float]* @fc, i32 0, i64 2), align 4 + %16 = load float* getelementptr inbounds ([4 x float]* @fa, i32 0, i64 3), align 4 + %17 = load float* getelementptr inbounds ([4 x float]* @fd, i32 0, i64 3), align 4 + %18 = load float* getelementptr inbounds ([4 x float]* @fb, i32 0, i64 3), align 4 + %19 = fadd float %17, %18 + %20 = fsub float %16, %19 + store float %20, float* getelementptr inbounds ([4 x float]* @fc, i32 0, i64 3), align 4 + ret void +} + +; Check vectorization of following code for double data type- +; c[0] = (a[0]+b[0])-d[0]; +; c[1] = d[1]+(a[1]+b[1]); //swapped d[1] and (a[1]+b[1]) + +; CHECK-LABEL: @reorder_alt_rightsubTree +; CHECK: fadd <2 x double> +; CHECK: fsub <2 x double> +; CHECK: shufflevector <2 x double> +define void @reorder_alt_rightsubTree(double* nocapture %c, double* noalias nocapture readonly %a, double* noalias nocapture readonly %b, double* noalias nocapture readonly %d) { + %1 = load double* %a + %2 = load double* %b + %3 = fadd double %1, %2 + %4 = load double* %d + %5 = fsub double %3, %4 + store double %5, double* %c + %6 = getelementptr inbounds double* %d, i64 1 + %7 = load double* %6 + %8 = getelementptr inbounds double* %a, i64 1 + %9 = load double* %8 + %10 = getelementptr inbounds double* %b, i64 1 + %11 = load double* %10 + %12 = fadd double %9, %11 + %13 = fadd double %7, %12 + %14 = getelementptr inbounds double* %c, i64 1 + store double %13, double* %14 + ret void +} + +; Dont vectorization of following code for float data type as sub is not commutative- +; fc[0] = fb[0]+fa[0]; +; fc[1] = fa[1]-fb[1]; +; fc[2] = fa[2]+fb[2]; +; fc[3] = fb[3]-fa[3]; +; In the above code we can swap the 1st and 2nd operation as fadd is commutative +; but not 2nd or 4th as fsub is not commutative. + +; CHECK-LABEL: @no_vec_shuff_reorder +; CHECK-NOT: fadd <4 x float> +; CHECK-NOT: fsub <4 x float> +; CHECK-NOT: shufflevector +define void @no_vec_shuff_reorder() #0 { + %1 = load float* getelementptr inbounds ([4 x float]* @fb, i32 0, i64 0), align 4 + %2 = load float* getelementptr inbounds ([4 x float]* @fa, i32 0, i64 0), align 4 + %3 = fadd float %1, %2 + store float %3, float* getelementptr inbounds ([4 x float]* @fc, i32 0, i64 0), align 4 + %4 = load float* getelementptr inbounds ([4 x float]* @fa, i32 0, i64 1), align 4 + %5 = load float* getelementptr inbounds ([4 x float]* @fb, i32 0, i64 1), align 4 + %6 = fsub float %4, %5 + store float %6, float* getelementptr inbounds ([4 x float]* @fc, i32 0, i64 1), align 4 + %7 = load float* getelementptr inbounds ([4 x float]* @fa, i32 0, i64 2), align 4 + %8 = load float* getelementptr inbounds ([4 x float]* @fb, i32 0, i64 2), align 4 + %9 = fadd float %7, %8 + store float %9, float* getelementptr inbounds ([4 x float]* @fc, i32 0, i64 2), align 4 + %10 = load float* getelementptr inbounds ([4 x float]* @fb, i32 0, i64 3), align 4 + %11 = load float* getelementptr inbounds ([4 x float]* @fa, i32 0, i64 3), align 4 + %12 = fsub float %10, %11 + store float %12, float* getelementptr inbounds ([4 x float]* @fc, i32 0, i64 3), align 4 + ret void +} + + attributes #0 = { nounwind } |