[llvm] 271010b - [AMDGPU] Restore temporal divergence in test

[Jay Foad via llvm-commits]

Author: Jay Foad
Date: 2023-03-06T12:09:52Z
New Revision: 271010bf50a552809b1095c46d32c0bfd9db8169

URL: https://github.com/llvm/llvm-project/commit/271010bf50a552809b1095c46d32c0bfd9db8169
DIFF: https://github.com/llvm/llvm-project/commit/271010bf50a552809b1095c46d32c0bfd9db8169.diff

LOG: [AMDGPU] Restore temporal divergence in test

The loop in this test was supposed to have temporal divergence but this
was broken by r367221. Fix it.

Added: 
    

Modified: 
    llvm/test/CodeGen/AMDGPU/divergence-at-use.ll

Removed: 
    


################################################################################
diff  --git a/llvm/test/CodeGen/AMDGPU/divergence-at-use.ll b/llvm/test/CodeGen/AMDGPU/divergence-at-use.ll
index 201691ad968b..1771c0050217 100644
--- a/llvm/test/CodeGen/AMDGPU/divergence-at-use.ll
+++ b/llvm/test/CodeGen/AMDGPU/divergence-at-use.ll
@@ -3,10 +3,11 @@
 
 @local = addrspace(3) global i32 undef
 
-define amdgpu_kernel void @reducible(i32 %x) {
+define amdgpu_kernel void @reducible() {
 ; CHECK-LABEL: reducible:
 ; CHECK-NOT: dpp
 entry:
+  %x = call i32 @llvm.amdgcn.workitem.id.x()
   br label %loop
 loop:
   %i = phi i32 [ 0, %entry ], [ %i1, %loop ]
@@ -18,3 +19,5 @@ exit:
   %old = atomicrmw add ptr addrspace(3) %gep, i32 %x acq_rel
   ret void
 }
+
+declare i32 @llvm.amdgcn.workitem.id.x()