1 files changed, 13 insertions, 1 deletions
diff --git a/test/CodeGen/AMDGPU/attr-amdgpu-waves-per-eu.ll b/test/CodeGen/AMDGPU/attr-amdgpu-waves-per-eu.ll
index 3dda73bc336ed..a5e97205de213 100644
--- a/test/CodeGen/AMDGPU/attr-amdgpu-waves-per-eu.ll
+++ b/test/CodeGen/AMDGPU/attr-amdgpu-waves-per-eu.ll
@@ -118,7 +118,7 @@ attributes #8 = {"amdgpu-waves-per-eu"="5,10"}
 ; CHECK-LABEL: {{^}}exactly_10:
 ; CHECK: SGPRBlocks: 1
 ; CHECK: VGPRBlocks: 5
-; CHECK: NumSGPRsForWavesPerEU: 13
+; CHECK: NumSGPRsForWavesPerEU: 12
 ; CHECK: NumVGPRsForWavesPerEU: 24
 define amdgpu_kernel void @exactly_10() #9 {
   %val0 = load volatile float, float addrspace(1)* @var
@@ -188,3 +188,15 @@ define amdgpu_kernel void @exactly_10() #9 {
   ret void
 }
 attributes #9 = {"amdgpu-waves-per-eu"="10,10"}
+
+; Exactly 256 workitems and exactly 2 waves.
+; CHECK-LABEL: {{^}}empty_workitems_exactly_256_waves_exactly_2:
+; CHECK: SGPRBlocks: 12
+; CHECK: VGPRBlocks: 21
+; CHECK: NumSGPRsForWavesPerEU: 102
+; CHECK: NumVGPRsForWavesPerEU: 85
+define amdgpu_kernel void @empty_workitems_exactly_256_waves_exactly_2() #10 {
+entry:
+  ret void
+}
+attributes #10 = {"amdgpu-flat-work-group-size"="256,256" "amdgpu-waves-per-eu"="2,2"}