[SeparateConstOffsetFromGEP] inbounds zext => sext for better splitting

[oota-llvm.git] / test / Transforms / SeparateConstOffsetFromGEP / NVPTX / split-gep-and-gvn.ll

diff --git a/test/Transforms/SeparateConstOffsetFromGEP/NVPTX/split-gep-and-gvn.ll b/test/Transforms/SeparateConstOffsetFromGEP/NVPTX/split-gep-and-gvn.ll
index 6b72bcdc0e74cbadee7a67359905dbf94b5a3933..c07440cd78fc8c18478c8421bb52c0e67371cf60 100644 (file)
--- a/test/Transforms/SeparateConstOffsetFromGEP/NVPTX/split-gep-and-gvn.ll
+++ b/test/Transforms/SeparateConstOffsetFromGEP/NVPTX/split-gep-and-gvn.ll
@@ -98,3 +98,44 @@ define void @sum_of_array2(i32 %x, i32 %y, float* nocapture %output) {
 ; IR: getelementptr float addrspace(3)* [[BASE_PTR]], i64 1
 ; IR: getelementptr float addrspace(3)* [[BASE_PTR]], i64 32
 ; IR: getelementptr float addrspace(3)* [[BASE_PTR]], i64 33
+
+; Similar to @sum_of_array3, but extends array indices using zext instead of
+; sext. e.g., array[zext(x + 1)][zext(y + 1)].
+define void @sum_of_array3(i32 %x, i32 %y, float* nocapture %output) {
+.preheader:
+  %0 = zext i32 %y to i64
+  %1 = zext i32 %x to i64
+  %2 = getelementptr inbounds [32 x [32 x float]] addrspace(3)* @array, i64 0, i64 %1, i64 %0
+  %3 = addrspacecast float addrspace(3)* %2 to float*
+  %4 = load float* %3, align 4
+  %5 = fadd float %4, 0.000000e+00
+  %6 = add i32 %y, 1
+  %7 = zext i32 %6 to i64
+  %8 = getelementptr inbounds [32 x [32 x float]] addrspace(3)* @array, i64 0, i64 %1, i64 %7
+  %9 = addrspacecast float addrspace(3)* %8 to float*
+  %10 = load float* %9, align 4
+  %11 = fadd float %5, %10
+  %12 = add i32 %x, 1
+  %13 = zext i32 %12 to i64
+  %14 = getelementptr inbounds [32 x [32 x float]] addrspace(3)* @array, i64 0, i64 %13, i64 %0
+  %15 = addrspacecast float addrspace(3)* %14 to float*
+  %16 = load float* %15, align 4
+  %17 = fadd float %11, %16
+  %18 = getelementptr inbounds [32 x [32 x float]] addrspace(3)* @array, i64 0, i64 %13, i64 %7
+  %19 = addrspacecast float addrspace(3)* %18 to float*
+  %20 = load float* %19, align 4
+  %21 = fadd float %17, %20
+  store float %21, float* %output, align 4
+  ret void
+}
+; PTX-LABEL: sum_of_array3(
+; PTX: ld.shared.f32 {{%f[0-9]+}}, {{\[}}[[BASE_REG:%(rl|r)[0-9]+]]{{\]}}
+; PTX: ld.shared.f32 {{%f[0-9]+}}, {{\[}}[[BASE_REG]]+4{{\]}}
+; PTX: ld.shared.f32 {{%f[0-9]+}}, {{\[}}[[BASE_REG]]+128{{\]}}
+; PTX: ld.shared.f32 {{%f[0-9]+}}, {{\[}}[[BASE_REG]]+132{{\]}}
+
+; IR-LABEL: @sum_of_array3(
+; IR: [[BASE_PTR:%[a-zA-Z0-9]+]] = getelementptr inbounds [32 x [32 x float]] addrspace(3)* @array, i64 0, i64 %{{[a-zA-Z0-9]+}}, i64 %{{[a-zA-Z0-9]+}}
+; IR: getelementptr float addrspace(3)* [[BASE_PTR]], i64 1
+; IR: getelementptr float addrspace(3)* [[BASE_PTR]], i64 32
+; IR: getelementptr float addrspace(3)* [[BASE_PTR]], i64 33