[clang] [RFC] Add clang atomic control options and pragmas (PR #102569)

[Matt Arsenault via cfe-commits]

================
@@ -61,30 +59,28 @@ __global__ void ffp1(float *p) {
 }
 
 __global__ void ffp2(double *p) {
-  // CHECK-LABEL: @_Z4ffp2Pd
-  // SAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 8{{$}}
-  // SAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8{{$}}
-  // SAFEIR: atomicrmw fmax ptr {{.*}} monotonic, align 8{{$}}
-  // SAFEIR: atomicrmw fmin ptr {{.*}} monotonic, align 8{{$}}
-  // SAFEIR: atomicrmw fmax ptr {{.*}} syncscope("agent-one-as") monotonic, 
align 8{{$}}
-  // SAFEIR: atomicrmw fmin ptr {{.*}} syncscope("workgroup-one-as") 
monotonic, align 8{{$}}
-
-  // UNSAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 8, 
!amdgpu.no.fine.grained.memory !{{[0-9]+$}}
-  // UNSAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8, 
!amdgpu.no.fine.grained.memory !{{[0-9]+$}}
-  // UNSAFEIR: atomicrmw fmax ptr {{.*}} monotonic, align 8, 
!amdgpu.no.fine.grained.memory !{{[0-9]+$}}
-  // UNSAFEIR: atomicrmw fmin ptr {{.*}} monotonic, align 8, 
!amdgpu.no.fine.grained.memory !{{[0-9]+$}}
-  // UNSAFEIR: atomicrmw fmax ptr {{.*}} syncscope("agent-one-as") monotonic, 
align 8, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
-  // UNSAFEIR: atomicrmw fmin ptr {{.*}} syncscope("workgroup-one-as") 
monotonic, align 8, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
-
-  // SAFE-LABEL: @_Z4ffp2Pd
+  // FUN-LABEL: @_Z4ffp2Pd
+  // SAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 8, [[DEFMD]]
----------------
arsenm wrote:

Losing the end of line checks 

https://github.com/llvm/llvm-project/pull/102569
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