[llvm] 67c482e - [MemorySSA] Add test that all incoming values of phi node could be translated
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Mon Sep 19 19:49:30 PDT 2022
Author: luxufan
Date: 2022-09-20T02:46:43Z
New Revision: 67c482e0b4be503056271e9cbdc891262b3fc904
URL: https://github.com/llvm/llvm-project/commit/67c482e0b4be503056271e9cbdc891262b3fc904
DIFF: https://github.com/llvm/llvm-project/commit/67c482e0b4be503056271e9cbdc891262b3fc904.diff
LOG: [MemorySSA] Add test that all incoming values of phi node could be translated
Differential Revision: https://reviews.llvm.org/D134160
Added:
Modified:
llvm/test/Analysis/MemorySSA/phi-translation.ll
Removed:
################################################################################
diff --git a/llvm/test/Analysis/MemorySSA/phi-translation.ll b/llvm/test/Analysis/MemorySSA/phi-translation.ll
index 0e98e8f94b172..fc79db91be362 100644
--- a/llvm/test/Analysis/MemorySSA/phi-translation.ll
+++ b/llvm/test/Analysis/MemorySSA/phi-translation.ll
@@ -424,6 +424,48 @@ exit:
ret void
}
+define i32 @phi_with_constant_values(i1 %cmp) {
+; CHECK-LABEL: define i32 @phi_with_constant_values
+; CHECK-LABEL: lhs:
+; CHECK: ; 1 = MemoryDef(liveOnEntry)
+; CHECK-NEXT: store i16 1, i16* %s1.ptr, align 2
+
+; CHECK-LABEL: rhs:
+; CHECK: ; 2 = MemoryDef(liveOnEntry)
+; CHECK-NEXT: store i16 1, i16* %s2.ptr, align 2
+
+; CHECK-LABEL: merge:
+; CHECK: ; 3 = MemoryPhi({lhs,1},{rhs,2})
+; CHECK-NEXT %storemerge2 = phi i32 [ 2, %lhs ], [ 3, %rhs ]
+; TODO: Here the defining access could be liveOnEntry. Since all incoming
+; values of phi node can be phi translated.
+; CHECK: ; MemoryUse(3)
+; CHECK-NEXT: %lv = load i16, i16* %arrayidx, align 2
+
+entry:
+ br i1 %cmp, label %lhs, label %rhs
+
+lhs:
+ %s1.ptr = getelementptr inbounds [2 x i16], [2 x i16]* @c, i64 0, i64 0
+ store i16 1, i16* %s1.ptr, align 2
+ br label %merge
+
+rhs:
+ %s2.ptr = getelementptr inbounds [2 x i16], [2 x i16]* @c, i64 0, i64 1
+ store i16 1, i16* %s2.ptr, align 2
+ br label %merge
+
+merge: ; preds = %for.body, %entry
+ %storemerge2 = phi i32 [ 2, %lhs ], [ 3, %rhs ]
+ %idxprom1 = zext i32 %storemerge2 to i64
+ %arrayidx = getelementptr inbounds [2 x i16], [2 x i16]* @c, i64 0, i64 %idxprom1
+ %lv = load i16, i16* %arrayidx, align 2
+ br label %end
+
+end: ; preds = %for.body
+ ret i32 0
+}
+
; CHECK-LABEL: define void @use_clobbered_by_def_in_loop()
define void @use_clobbered_by_def_in_loop() {
entry:
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