[PATCH] D87228: [Lint] Add check for intrinsic get.active.lane.mask

[Sjoerd Meijer via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rG6637d72ddd3c: [Lint] Add check for intrinsic get.active.lane.mask (authored by SjoerdMeijer).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D87228/new/

https://reviews.llvm.org/D87228

Files:
  llvm/lib/Analysis/Lint.cpp
  llvm/test/Analysis/Lint/get-active-lane-mask.ll


Index: llvm/test/Analysis/Lint/get-active-lane-mask.ll
===================================================================
--- /dev/null
+++ llvm/test/Analysis/Lint/get-active-lane-mask.ll
@@ -0,0 +1,39 @@
+; RUN: opt -lint -disable-output < %s 2>&1 | FileCheck %s
+
+define <4 x i1> @t1(i32 %IV) {
+;
+; CHECK:      get_active_lane_mask: operand #2 must be greater than 0
+; CHECK-NEXT: %res = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %IV, i32 0)
+;
+  %res = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %IV, i32 0)
+  ret <4 x i1> %res
+}
+
+define <4 x i1> @t2(i32 %IV) {
+;
+; CHECK-NOT: get_active_lane_mask
+; CHECK-NOT: call <4 x i1> @llvm.get.active.lane.mask
+;
+  %res = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %IV, i32 1)
+  ret <4 x i1> %res
+}
+
+define <4 x i1> @t3(i32 %IV) {
+;
+; CHECK-NOT: get_active_lane_mask
+; CHECK-NOT: call <4 x i1> @llvm.get.active.lane.mask
+;
+  %res = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %IV, i32 -1)
+  ret <4 x i1> %res
+}
+
+define <4 x i1> @t4(i32 %IV, i32 %TC) {
+;
+; CHECK-NOT: get_active_lane_mask
+; CHECK-NOT: call <4 x i1> @llvm.get.active.lane.mask
+;
+  %res = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %IV, i32 %TC)
+  ret <4 x i1> %res
+}
+
+declare <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32, i32)
Index: llvm/lib/Analysis/Lint.cpp
===================================================================
--- llvm/lib/Analysis/Lint.cpp
+++ llvm/lib/Analysis/Lint.cpp
@@ -365,6 +365,11 @@
       visitMemoryReference(I, I.getArgOperand(0), MemoryLocation::UnknownSize,
                            None, nullptr, MemRef::Read | MemRef::Write);
       break;
+    case Intrinsic::get_active_lane_mask:
+      if (auto *TripCount = dyn_cast<ConstantInt>(I.getArgOperand(1)))
+        Assert(!TripCount->isZero(), "get_active_lane_mask: operand #2 "
+               "must be greater than 0", &I);
+      break;
     }
 }
 


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