1 files changed, 47 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/large-alloca-graphics.ll b/llvm/test/CodeGen/AMDGPU/large-alloca-graphics.ll
new file mode 100644
index 00000000000..208b9a10050
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/large-alloca-graphics.ll
@@ -0,0 +1,47 @@
+; RUN: llc -march=amdgcn -mcpu=bonaire < %s | FileCheck -check-prefix=GCN -check-prefix=CI -check-prefix=ALL %s
+; RUN: llc -march=amdgcn -mcpu=tonga < %s | FileCheck -check-prefix=GCN -check-prefix=VI -check-prefix=ALL %s
+
+; ALL-LABEL: {{^}}large_alloca_pixel_shader:
+; GCN: s_mov_b32 s8, SCRATCH_RSRC_DWORD0
+; GCN: s_mov_b32 s9, SCRATCH_RSRC_DWORD1
+; GCN: s_mov_b32 s10, -1
+; CI: s_mov_b32 s11, 0x80f000
+; VI: s_mov_b32 s11, 0x800000
+
+; GCN: buffer_store_dword {{v[0-9]+}}, {{v[0-9]+}}, s[8:11], s0 offen
+; GCN: buffer_load_dword {{v[0-9]+}}, {{v[0-9]+}}, s[8:11], s0 offen
+
+; ALL: ; ScratchSize: 32772
+define void @large_alloca_pixel_shader(i32 %x, i32 %y) #1 {
+  %large = alloca [8192 x i32], align 4
+  %gep = getelementptr [8192 x i32], [8192 x i32]* %large, i32 0, i32 8191
+  store volatile i32 %x, i32* %gep
+  %gep1 = getelementptr [8192 x i32], [8192 x i32]* %large, i32 0, i32 %y
+  %val = load volatile i32, i32* %gep1
+  store volatile i32 %val, i32 addrspace(1)* undef
+  ret void
+}
+
+; ALL-LABEL: {{^}}large_alloca_pixel_shader_inreg:
+; GCN: s_mov_b32 s8, SCRATCH_RSRC_DWORD0
+; GCN: s_mov_b32 s9, SCRATCH_RSRC_DWORD1
+; GCN: s_mov_b32 s10, -1
+; CI: s_mov_b32 s11, 0x80f000
+; VI: s_mov_b32 s11, 0x800000
+
+; GCN: buffer_store_dword {{v[0-9]+}}, {{v[0-9]+}}, s[8:11], s2 offen
+; GCN: buffer_load_dword {{v[0-9]+}}, {{v[0-9]+}}, s[8:11], s2 offen
+
+; ALL: ; ScratchSize: 32772
+define void @large_alloca_pixel_shader_inreg(i32 inreg %x, i32 inreg %y) #1 {
+  %large = alloca [8192 x i32], align 4
+  %gep = getelementptr [8192 x i32], [8192 x i32]* %large, i32 0, i32 8191
+  store volatile i32 %x, i32* %gep
+  %gep1 = getelementptr [8192 x i32], [8192 x i32]* %large, i32 0, i32 %y
+  %val = load volatile i32, i32* %gep1
+  store volatile i32 %val, i32 addrspace(1)* undef
+  ret void
+}
+
+attributes #0 = { nounwind  }
+attributes #1 = { nounwind "ShaderType"="0" }