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| author | Florian Hahn <flo@fhahn.com> | 2024-06-20 10:57:25 +0100 |
|---|---|---|
| committer | Florian Hahn <flo@fhahn.com> | 2024-06-20 10:57:25 +0100 |
| commit | ffc51b966e74b89092cd57909d8659756aae106a (patch) | |
| tree | 08ead14ffb6fc4f19774a126fd2a30bb6a35dcbc | |
| parent | 2c06fb899966b49ff0fe4adf55fceb7d1941fbca (diff) | |
| download | llvm-ffc51b966e74b89092cd57909d8659756aae106a.zip llvm-ffc51b966e74b89092cd57909d8659756aae106a.tar.gz llvm-ffc51b966e74b89092cd57909d8659756aae106a.tar.bz2 | |
[LV] Remove loads from null from pr73894.ll test.
Load from null is UB, load from pointer arg instead.
| -rw-r--r-- | llvm/test/Transforms/LoopVectorize/AArch64/pr73894.ll | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/AArch64/pr73894.ll b/llvm/test/Transforms/LoopVectorize/AArch64/pr73894.ll index 34d5db4..d86ddcd 100644 --- a/llvm/test/Transforms/LoopVectorize/AArch64/pr73894.ll +++ b/llvm/test/Transforms/LoopVectorize/AArch64/pr73894.ll @@ -3,12 +3,11 @@ target triple = "aarch64-unknown-linux-gnu" -define i32 @pr70988() { +define i32 @pr70988(ptr %src, i32 %n) { ; CHECK-LABEL: define i32 @pr70988( ; CHECK-SAME: ) #[[ATTR0:[0-9]+]] { ; CHECK-NEXT: entry: -; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr null, align 4 -; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[TMP0]], 15 +; CHECK-NEXT: [[TMP1:%.*]] = and i32 %n, 15 ; CHECK-NEXT: [[TMP2:%.*]] = call i32 @llvm.umax.i32(i32 [[TMP1]], i32 1) ; CHECK-NEXT: [[UMAX:%.*]] = zext i32 [[TMP2]] to i64 ; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] @@ -28,7 +27,7 @@ define i32 @pr70988() { ; CHECK-NEXT: br i1 [[ACTIVE_LANE_MASK]], label [[PRED_LOAD_IF:%.*]], label [[PRED_LOAD_CONTINUE:%.*]] ; CHECK: pred.load.if: ; CHECK-NEXT: [[TMP3:%.*]] = add i64 [[INDEX]], 0 -; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i32, ptr null, i64 [[TMP3]] +; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i32, ptr %src, i64 [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = load ptr, ptr [[TMP4]], align 8 ; CHECK-NEXT: [[TMP6:%.*]] = load i32, ptr [[TMP5]], align 4 ; CHECK-NEXT: br label [[PRED_LOAD_CONTINUE]] @@ -38,7 +37,7 @@ define i32 @pr70988() { ; CHECK-NEXT: br i1 [[ACTIVE_LANE_MASK2]], label [[PRED_LOAD_IF4:%.*]], label [[PRED_LOAD_CONTINUE5]] ; CHECK: pred.load.if4: ; CHECK-NEXT: [[TMP9:%.*]] = add i64 [[INDEX]], 1 -; CHECK-NEXT: [[TMP10:%.*]] = getelementptr i32, ptr null, i64 [[TMP9]] +; CHECK-NEXT: [[TMP10:%.*]] = getelementptr i32, ptr %src, i64 [[TMP9]] ; CHECK-NEXT: [[TMP11:%.*]] = load ptr, ptr [[TMP10]], align 8 ; CHECK-NEXT: [[TMP12:%.*]] = load i32, ptr [[TMP11]], align 4 ; CHECK-NEXT: br label [[PRED_LOAD_CONTINUE5]] @@ -65,7 +64,7 @@ define i32 @pr70988() { ; CHECK: loop: ; CHECK-NEXT: [[INDUC:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INDUC_NEXT:%.*]], [[LOOP]] ] ; CHECK-NEXT: [[MAX:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[TMP24:%.*]], [[LOOP]] ] -; CHECK-NEXT: [[GEP:%.*]] = getelementptr i32, ptr null, i64 [[INDUC]] +; CHECK-NEXT: [[GEP:%.*]] = getelementptr i32, ptr %src, i64 [[INDUC]] ; CHECK-NEXT: [[TMP22:%.*]] = load ptr, ptr [[GEP]], align 8 ; CHECK-NEXT: [[TMP23:%.*]] = load i32, ptr [[TMP22]], align 4 ; CHECK-NEXT: [[TMP24]] = tail call i32 @llvm.smax.i32(i32 [[TMP23]], i32 [[MAX]]) @@ -77,8 +76,7 @@ define i32 @pr70988() { ; CHECK-NEXT: ret i32 [[RES]] ; entry: - %0 = load i32, ptr null - %1 = and i32 %0, 15 + %1 = and i32 %n, 15 %2 = call i32 @llvm.umax.i32(i32 %1, i32 1) %umax = zext i32 %2 to i64 br label %loop @@ -86,7 +84,7 @@ entry: loop: %induc = phi i64 [ 0, %entry ], [ %induc.next, %loop ] %max = phi i32 [ 0, %entry ], [ %5, %loop ] - %gep = getelementptr i32, ptr null, i64 %induc + %gep = getelementptr i32, ptr %src, i64 %induc %3 = load ptr, ptr %gep %4 = load i32, ptr %3 %5 = tail call i32 @llvm.smax.i32(i32 %4, i32 %max) |