[llvm] 474c8fe - [Test] Precommit test for PR59615

[Max Kazantsev via llvm-commits]

Author: Max Kazantsev
Date: 2022-12-21T11:39:05+07:00
New Revision: 474c8fe9b73c441fd63a931f9a12475a72b37231

URL: https://github.com/llvm/llvm-project/commit/474c8fe9b73c441fd63a931f9a12475a72b37231
DIFF: https://github.com/llvm/llvm-project/commit/474c8fe9b73c441fd63a931f9a12475a72b37231.diff

LOG: [Test] Precommit test for PR59615

Added: 
    llvm/test/Transforms/IndVarSimplify/X86/pr59615.ll

Modified: 
    

Removed: 
    


################################################################################
diff  --git a/llvm/test/Transforms/IndVarSimplify/X86/pr59615.ll b/llvm/test/Transforms/IndVarSimplify/X86/pr59615.ll
new file mode 100644
index 0000000000000..71f9d901b4590
--- /dev/null
+++ b/llvm/test/Transforms/IndVarSimplify/X86/pr59615.ll
@@ -0,0 +1,83 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -passes='loop(indvars),verify' -S < %s | FileCheck %s
+
+target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @test() {
+; CHECK-LABEL: @test(
+; CHECK-NEXT:  bb:
+; CHECK-NEXT:    [[VAR:%.*]] = load atomic i32, ptr addrspace(1) poison unordered, align 8, !range [[RNG0:![0-9]+]], !invariant.load !1, !noundef !1
+; CHECK-NEXT:    [[VAR1:%.*]] = add nsw i32 [[VAR]], -1
+; CHECK-NEXT:    [[VAR2:%.*]] = icmp eq i32 [[VAR]], 0
+; CHECK-NEXT:    br i1 [[VAR2]], label [[BB18:%.*]], label [[BB19:%.*]]
+; CHECK:       bb3:
+; CHECK-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ 0, [[BB19]] ], [ [[INDVARS_IV_NEXT:%.*]], [[BB12:%.*]] ]
+; CHECK-NEXT:    [[TMP0:%.*]] = sub nsw i64 [[TMP3:%.*]], [[INDVARS_IV]]
+; CHECK-NEXT:    [[TMP1:%.*]] = trunc i64 [[TMP0]] to i32
+; CHECK-NEXT:    [[VAR6:%.*]] = icmp ult i32 [[TMP1]], [[VAR]]
+; CHECK-NEXT:    br i1 [[VAR6]], label [[BB8:%.*]], label [[BB7:%.*]]
+; CHECK:       bb7:
+; CHECK-NEXT:    ret void
+; CHECK:       bb8:
+; CHECK-NEXT:    [[VAR9:%.*]] = load atomic i32, ptr addrspace(1) poison unordered, align 8, !range [[RNG0]], !invariant.load !1, !noundef !1
+; CHECK-NEXT:    [[TMP2:%.*]] = zext i32 [[VAR9]] to i64
+; CHECK-NEXT:    [[VAR10:%.*]] = icmp ult i64 [[INDVARS_IV]], [[TMP2]]
+; CHECK-NEXT:    br i1 [[VAR10]], label [[BB12]], label [[BB11:%.*]]
+; CHECK:       bb11:
+; CHECK-NEXT:    ret void
+; CHECK:       bb12:
+; CHECK-NEXT:    [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
+; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT:%.*]]
+; CHECK-NEXT:    br i1 [[EXITCOND]], label [[BB3:%.*]], label [[BB17:%.*]]
+; CHECK:       bb17:
+; CHECK-NEXT:    unreachable
+; CHECK:       bb18:
+; CHECK-NEXT:    ret void
+; CHECK:       bb19:
+; CHECK-NEXT:    [[TMP3]] = sext i32 [[VAR1]] to i64
+; CHECK-NEXT:    [[WIDE_TRIP_COUNT]] = zext i32 [[VAR]] to i64
+; CHECK-NEXT:    br label [[BB3]]
+;
+bb:
+  %var = load atomic i32, ptr addrspace(1) poison unordered, align 8, !range !0, !invariant.load !1, !noundef !1
+  %var1 = add nsw i32 %var, -1
+  %var2 = icmp eq i32 %var, 0
+  br i1 %var2, label %bb18, label %bb19
+
+bb3:                                              ; preds = %bb19, %bb12
+  %var4 = phi i32 [ %var15, %bb12 ], [ 0, %bb19 ]
+  %var5 = sub nsw i32 %var1, %var4
+  %var6 = icmp ult i32 %var5, %var
+  br i1 %var6, label %bb8, label %bb7
+
+bb7:                                              ; preds = %bb3
+  ret void
+
+bb8:                                              ; preds = %bb3
+  %var9 = load atomic i32, ptr addrspace(1) poison unordered, align 8, !range !0, !invariant.load !1, !noundef !1
+  %var10 = icmp ult i32 %var4, %var9
+  br i1 %var10, label %bb12, label %bb11
+
+bb11:                                             ; preds = %bb8
+  ret void
+
+bb12:                                             ; preds = %bb8
+  %var13 = zext i32 %var4 to i64
+  %var14 = getelementptr inbounds i32, ptr addrspace(1) poison, i64 %var13
+  %var15 = add nuw nsw i32 %var4, 1
+  %var16 = icmp ult i32 %var15, %var
+  br i1 %var16, label %bb3, label %bb17
+
+bb17:                                             ; preds = %bb12
+  unreachable
+
+bb18:                                             ; preds = %bb
+  ret void
+
+bb19:                                             ; preds = %bb
+  br label %bb3
+}
+
+!0 = !{i32 0, i32 2147483646}
+!1 = !{}