[clang] [llvm] [AMDGPU] Adding the amdgpu-num-work-groups function attribute (PR #79035)

[Matt Arsenault via cfe-commits]

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@@ -0,0 +1,77 @@
+; RUN: not llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s 2>&1 | FileCheck --check-prefix=ERROR %s
+
+; ERROR: error: can't parse integer attribute -1 in amdgpu-max-num-work-groups
+define amdgpu_kernel void @empty_max_num_work_groups_neg_num1() #21 {
+entry:
+  ret void
+}
+attributes #21 = {"amdgpu-max-num-work-groups"="-1,2,3"}
+
+; ERROR: error: can't parse integer attribute -2 in amdgpu-max-num-work-groups
+define amdgpu_kernel void @empty_max_num_work_groups_neg_num2() #22 {
+entry:
+  ret void
+}
+attributes #22 = {"amdgpu-max-num-work-groups"="1,-2,3"}
+
+; ERROR: error: can't parse integer attribute -3 in amdgpu-max-num-work-groups
+define amdgpu_kernel void @empty_max_num_work_groups_neg_num3() #23 {
+entry:
+  ret void
+}
+attributes #23 = {"amdgpu-max-num-work-groups"="1,2,-3"}
+
+
+; ERROR: error: can't parse integer attribute 1.0 in amdgpu-max-num-work-groups
+define amdgpu_kernel void @empty_max_num_work_groups_non_int1() #31 {
+entry:
+  ret void
+}
+attributes #31 = {"amdgpu-max-num-work-groups"="1.0,2,3"}
+
+; ERROR: error: can't parse integer attribute 2.0 in amdgpu-max-num-work-groups
+define amdgpu_kernel void @empty_max_num_work_groups_non_int2() #32 {
+entry:
+  ret void
+}
+attributes #32 = {"amdgpu-max-num-work-groups"="1,2.0,3"}
+
+; ERROR: error: can't parse integer attribute 3.0 in amdgpu-max-num-work-groups
+define amdgpu_kernel void @empty_max_num_work_groups_non_int3() #33 {
+entry:
+  ret void
+}
+attributes #33 = {"amdgpu-max-num-work-groups"="1,2,3.0"}
+
+; ERROR: error: can't parse integer attribute 10000000000 in amdgpu-max-num-work-groups
+define amdgpu_kernel void @empty_max_num_work_groups_too_large() #41 {
+entry:
+  ret void
+}
+attributes #41 = {"amdgpu-max-num-work-groups"="10000000000,2,3"}
+
+
+; ERROR: error: attribute amdgpu-max-num-work-groups has incorrect number of integers; expected 3
+define amdgpu_kernel void @empty_max_num_work_groups_1_arg() #51 {
+entry:
+  ret void
+}
+attributes #51 = {"amdgpu-max-num-work-groups"="1"}
+
+; ERROR: error: attribute amdgpu-max-num-work-groups has incorrect number of integers; expected 3
+define amdgpu_kernel void @empty_max_num_work_groups_2_args() #52 {
+entry:
+  ret void
+}
+attributes #52 = {"amdgpu-max-num-work-groups"="1,2"}
+
+; ERROR: error: attribute amdgpu-max-num-work-groups has incorrect number of integers; expected 3
+define amdgpu_kernel void @empty_max_num_work_groups_4_args() #53 {
+entry:
+  ret void
+}
+attributes #53 = {"amdgpu-max-num-work-groups"="1,2,3,4"}
+
+
+
+
----------------
arsenm wrote:

extra newlines 

https://github.com/llvm/llvm-project/pull/79035