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-rw-r--r--polly/lib/CodeGen/IslNodeBuilder.cpp11
-rw-r--r--polly/test/Isl/CodeGen/inv-load-lnt-crash-wrong-order-3.ll73
2 files changed, 75 insertions, 9 deletions
diff --git a/polly/lib/CodeGen/IslNodeBuilder.cpp b/polly/lib/CodeGen/IslNodeBuilder.cpp
index 930302a114f..6dc1678c6cf 100644
--- a/polly/lib/CodeGen/IslNodeBuilder.cpp
+++ b/polly/lib/CodeGen/IslNodeBuilder.cpp
@@ -941,15 +941,8 @@ void IslNodeBuilder::preloadInvariantEquivClass(
// If the base pointer of this class is dependent on another one we have to
// make sure it was preloaded already.
auto *SAI = S.getScopArrayInfo(MA->getBaseAddr());
- if (auto *BasePtrOriginSAI = SAI->getBasePtrOriginSAI()) {
- auto *BasePtrOriginBasePtr = BasePtrOriginSAI->getBasePtr();
- auto *BasePtrOriginBasePtrSCEV = SE.getSCEV(BasePtrOriginBasePtr);
-
- const auto &InvariantEquivClasses = S.getInvariantAccesses();
- for (const auto &OtherIAClass : InvariantEquivClasses)
- if (std::get<0>(OtherIAClass) == BasePtrOriginBasePtrSCEV)
- preloadInvariantEquivClass(OtherIAClass);
- }
+ if (const auto *BaseIAClass = S.lookupInvariantEquivClass(SAI->getBasePtr()))
+ preloadInvariantEquivClass(*BaseIAClass);
Instruction *AccInst = MA->getAccessInstruction();
Type *AccInstTy = AccInst->getType();
diff --git a/polly/test/Isl/CodeGen/inv-load-lnt-crash-wrong-order-3.ll b/polly/test/Isl/CodeGen/inv-load-lnt-crash-wrong-order-3.ll
new file mode 100644
index 00000000000..9c52862d51d
--- /dev/null
+++ b/polly/test/Isl/CodeGen/inv-load-lnt-crash-wrong-order-3.ll
@@ -0,0 +1,73 @@
+; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s
+;
+; This crashed our codegen at some point, verify it runs through
+;
+; CHECK: polly.start
+;
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+
+%struct.colocated_params = type { i32, i32, i32, [6 x [33 x i64]], i8***, i64***, i16****, i8**, [6 x [33 x i64]], i8***, i64***, i16****, i8**, [6 x [33 x i64]], i8***, i64***, i16****, i8**, i8, i8** }
+%struct.storable_picture9 = type { i32, i32, i32, i32, i32, [50 x [6 x [33 x i64]]], [50 x [6 x [33 x i64]]], [50 x [6 x [33 x i64]]], [50 x [6 x [33 x i64]]], i32, i32, i32, i32, i32, i32, i32, i32, i32, i16, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i16**, i16***, i8*, i16**, i8***, i64***, i64***, i16****, i8**, i8**, %struct.storable_picture9*, %struct.storable_picture9*, %struct.storable_picture9*, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, [2 x i32], i32, %struct.DecRefPicMarking_s*, i32 }
+%struct.DecRefPicMarking_s = type { i32, i32, i32, i32, i32, %struct.DecRefPicMarking_s* }
+
+; Function Attrs: nounwind uwtable
+define void @compute_colocated(%struct.colocated_params* %p) #0 {
+entry:
+ %tmp = load %struct.storable_picture9*, %struct.storable_picture9** undef, align 8
+ br label %for.body.393
+
+for.body.393: ; preds = %if.end.549, %entry
+ br i1 undef, label %if.then.397, label %if.else.643
+
+if.then.397: ; preds = %for.body.393
+ %ref_idx456 = getelementptr inbounds %struct.storable_picture9, %struct.storable_picture9* %tmp, i64 0, i32 36
+ %tmp1 = load i8***, i8**** %ref_idx456, align 8
+ %tmp2 = load i8**, i8*** %tmp1, align 8
+ %arrayidx458 = getelementptr inbounds i8*, i8** %tmp2, i64 0
+ %tmp3 = load i8*, i8** %arrayidx458, align 8
+ %arrayidx459 = getelementptr inbounds i8, i8* %tmp3, i64 0
+ %tmp4 = load i8, i8* %arrayidx459, align 1
+ %cmp461 = icmp eq i8 %tmp4, -1
+ br i1 %cmp461, label %if.then.463, label %if.else.476
+
+if.then.463: ; preds = %if.then.397
+ br label %if.end.501
+
+if.else.476: ; preds = %if.then.397
+ %ref_id491 = getelementptr inbounds %struct.storable_picture9, %struct.storable_picture9* %tmp, i64 0, i32 38
+ %tmp5 = load i64***, i64**** %ref_id491, align 8
+ br label %if.end.501
+
+if.end.501: ; preds = %if.else.476, %if.then.463
+ %tmp6 = load i8***, i8**** %ref_idx456, align 8
+ %arrayidx505 = getelementptr inbounds i8**, i8*** %tmp6, i64 1
+ %tmp7 = load i8**, i8*** %arrayidx505, align 8
+ %arrayidx506 = getelementptr inbounds i8*, i8** %tmp7, i64 0
+ %tmp8 = load i8*, i8** %arrayidx506, align 8
+ %arrayidx507 = getelementptr inbounds i8, i8* %tmp8, i64 0
+ %tmp9 = load i8, i8* %arrayidx507, align 1
+ %cmp509 = icmp eq i8 %tmp9, -1
+ %ref_idx514 = getelementptr inbounds %struct.colocated_params, %struct.colocated_params* %p, i64 0, i32 4
+ %tmp10 = load i8***, i8**** %ref_idx514, align 8
+ %arrayidx515 = getelementptr inbounds i8**, i8*** %tmp10, i64 1
+ %tmp11 = load i8**, i8*** %arrayidx515, align 8
+ %arrayidx516 = getelementptr inbounds i8*, i8** %tmp11, i64 0
+ %tmp12 = load i8*, i8** %arrayidx516, align 8
+ %arrayidx517 = getelementptr inbounds i8, i8* %tmp12, i64 0
+ br i1 %cmp509, label %if.then.511, label %if.else.524
+
+if.then.511: ; preds = %if.end.501
+ br label %if.end.549
+
+if.else.524: ; preds = %if.end.501
+ store i8 %tmp9, i8* %arrayidx517, align 1
+ %ref_id539 = getelementptr inbounds %struct.storable_picture9, %struct.storable_picture9* %tmp, i64 0, i32 38
+ %tmp13 = load i64***, i64**** %ref_id539, align 8
+ br label %if.end.549
+
+if.end.549: ; preds = %if.else.524, %if.then.511
+ br label %for.body.393
+
+if.else.643: ; preds = %for.body.393
+ unreachable
+}
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