1 files changed, 50 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/promote-alloca-array-allocation.ll b/llvm/test/CodeGen/AMDGPU/promote-alloca-array-allocation.ll
new file mode 100644
index 00000000000..3bd0aecf7aa
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/promote-alloca-array-allocation.ll
@@ -0,0 +1,50 @@
+; RUN: opt -S -mtriple=amdgcn-amd-amdhsa -amdgpu-promote-alloca < %s | FileCheck %s
+
+; Make sure this allocates the correct size if the alloca has a non-0
+; number of elements.
+
+; CHECK-LABEL: @array_alloca(
+; CHECK: %stack = alloca i32, i32 5, align 4
+define void @array_alloca(i32 addrspace(1)* nocapture %out, i32 addrspace(1)* nocapture %in) #0 {
+entry:
+  %stack = alloca i32, i32 5, align 4
+  %ld0 = load i32, i32 addrspace(1)* %in, align 4
+  %arrayidx1 = getelementptr inbounds i32, i32* %stack, i32 %ld0
+  store i32 4, i32* %arrayidx1, align 4
+  %arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 1
+  %ld1 = load i32, i32 addrspace(1)* %arrayidx2, align 4
+  %arrayidx3 = getelementptr inbounds i32, i32* %stack, i32 %ld1
+  store i32 5, i32* %arrayidx3, align 4
+  %arrayidx10 = getelementptr inbounds i32, i32* %stack, i32 0
+  %ld2 = load i32, i32* %arrayidx10, align 4
+  store i32 %ld2, i32 addrspace(1)* %out, align 4
+  %arrayidx12 = getelementptr inbounds i32, i32* %stack, i32 1
+  %ld3 = load i32, i32* %arrayidx12
+  %arrayidx13 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 1
+  store i32 %ld3, i32 addrspace(1)* %arrayidx13
+  ret void
+}
+
+; CHECK-LABEL: @array_alloca_dynamic(
+; CHECK: %stack = alloca i32, i32 %size, align 4
+define void @array_alloca_dynamic(i32 addrspace(1)* nocapture %out, i32 addrspace(1)* nocapture %in, i32 %size) #0 {
+entry:
+  %stack = alloca i32, i32 %size, align 4
+  %ld0 = load i32, i32 addrspace(1)* %in, align 4
+  %arrayidx1 = getelementptr inbounds i32, i32* %stack, i32 %ld0
+  store i32 4, i32* %arrayidx1, align 4
+  %arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 1
+  %ld1 = load i32, i32 addrspace(1)* %arrayidx2, align 4
+  %arrayidx3 = getelementptr inbounds i32, i32* %stack, i32 %ld1
+  store i32 5, i32* %arrayidx3, align 4
+  %arrayidx10 = getelementptr inbounds i32, i32* %stack, i32 0
+  %ld2 = load i32, i32* %arrayidx10, align 4
+  store i32 %ld2, i32 addrspace(1)* %out, align 4
+  %arrayidx12 = getelementptr inbounds i32, i32* %stack, i32 1
+  %ld3 = load i32, i32* %arrayidx12
+  %arrayidx13 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 1
+  store i32 %ld3, i32 addrspace(1)* %arrayidx13
+  ret void
+}
+
+attributes #0 = { nounwind }