[llvm] 395c11f - [SLP][NFC]Add a test with phi nodes in one tree node with different

[Alexey Bataev via llvm-commits]

Author: Alexey Bataev
Date: 2023-03-10T12:19:08-08:00
New Revision: 395c11f7b82f68b62ff329bb1849b363929e1408

URL: https://github.com/llvm/llvm-project/commit/395c11f7b82f68b62ff329bb1849b363929e1408
DIFF: https://github.com/llvm/llvm-project/commit/395c11f7b82f68b62ff329bb1849b363929e1408.diff

LOG: [SLP][NFC]Add a test with phi nodes in one tree node with different
order of incoming basic blocks, NFC.

Added: 
    llvm/test/Transforms/SLPVectorizer/X86/phis-different-order.ll

Modified: 
    

Removed: 
    


################################################################################
diff  --git a/llvm/test/Transforms/SLPVectorizer/X86/phis-
diff erent-order.ll b/llvm/test/Transforms/SLPVectorizer/X86/phis-
diff erent-order.ll
new file mode 100644
index 0000000000000..2a0d4804026fd
--- /dev/null
+++ b/llvm/test/Transforms/SLPVectorizer/X86/phis-
diff erent-order.ll
@@ -0,0 +1,47 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
+; RUN: opt -passes=slp-vectorizer -S < %s -mcpu=pentium4 -mtriple=i386-pc-windows-msvc19.16.0 | FileCheck %s
+
+define ptr @test()  {
+; CHECK-LABEL: define ptr @test
+; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK:       for.body:
+; CHECK-NEXT:    [[PC:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ 0, [[BB:%.*]] ]
+; CHECK-NEXT:    br i1 false, label [[FOR_INC:%.*]], label [[BB2:%.*]]
+; CHECK:       for.inc:
+; CHECK-NEXT:    [[TMP0:%.*]] = insertelement <2 x i64> <i64 0, i64 poison>, i64 [[PC]], i32 1
+; CHECK-NEXT:    br i1 false, label [[BB2]], label [[BB]]
+; CHECK:       bb:
+; CHECK-NEXT:    br i1 false, label [[BB2]], label [[FOR_BODY]]
+; CHECK:       bb1:
+; CHECK-NEXT:    br label [[BB2]]
+; CHECK:       bb2:
+; CHECK-NEXT:    [[TMP1:%.*]] = phi <2 x i64> [ poison, [[BB1:%.*]] ], [ [[TMP0]], [[BB]] ], [ [[TMP0]], [[FOR_INC]] ], [ zeroinitializer, [[FOR_BODY]] ]
+; CHECK-NEXT:    store <2 x i64> [[TMP1]], ptr getelementptr inbounds ([7 x i64], ptr null, i32 0, i32 2), align 8
+; CHECK-NEXT:    ret ptr null
+;
+entry:
+  br label %for.body
+
+for.body:
+  %pc = phi i64 [ 0, %entry ], [ 0, %bb ]
+  br i1 false, label %for.inc, label %bb2
+
+for.inc:
+  br i1 false, label %bb2, label %bb
+
+bb:
+  br i1 false, label %bb2, label %for.body
+
+bb1:
+  br label %bb2
+
+bb2:
+  %ph1 = phi i64 [ 0, %bb1 ], [ 0, %bb ], [ 0, %for.inc ], [ 0, %for.body ]
+  %ph2 = phi i64 [ 0, %bb1 ], [ 0, %for.body ], [ %pc, %bb ], [ %pc, %for.inc ]
+  store i64 %ph1, ptr getelementptr inbounds ([7 x i64], ptr null, i32 0, i32 2), align 8
+  store i64 %ph2, ptr getelementptr inbounds ([7 x i64], ptr null, i32 0, i32 3), align 8
+  ret ptr null
+}
+