68 lines
2.9 KiB
LLVM
68 lines
2.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -loop-interchange -loop-interchange-threshold=-10 -S %s | FileCheck %s
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; The test contains a GEP with an operand that is not SCEV-able. Make sure
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; loop-interchange does not crash.
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define void @test([256 x float]* noalias %src, float* %dst) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[INNER_PREHEADER:%.*]]
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; CHECK: outer.header.preheader:
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; CHECK-NEXT: br label [[OUTER_HEADER:%.*]]
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; CHECK: outer.header:
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; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[OUTER_LATCH:%.*]] ], [ 0, [[OUTER_HEADER_PREHEADER:%.*]] ]
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; CHECK-NEXT: br label [[INNER_SPLIT1:%.*]]
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; CHECK: inner.preheader:
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; CHECK-NEXT: br label [[INNER:%.*]]
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; CHECK: inner:
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; CHECK-NEXT: [[J:%.*]] = phi i64 [ [[TMP0:%.*]], [[INNER_SPLIT:%.*]] ], [ 0, [[INNER_PREHEADER]] ]
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; CHECK-NEXT: br label [[OUTER_HEADER_PREHEADER]]
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; CHECK: inner.split1:
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; CHECK-NEXT: [[SRC_GEP:%.*]] = getelementptr inbounds [256 x float], [256 x float]* [[SRC:%.*]], <2 x i64> <i64 0, i64 1>, i64 [[J]]
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; CHECK-NEXT: [[SRC_0:%.*]] = extractelement <2 x float*> [[SRC_GEP]], i32 0
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; CHECK-NEXT: [[LV_0:%.*]] = load float, float* [[SRC_0]], align 4
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; CHECK-NEXT: [[ADD_0:%.*]] = fadd float [[LV_0]], 1.000000e+00
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; CHECK-NEXT: [[DST_GEP:%.*]] = getelementptr inbounds float, float* [[DST:%.*]], i64 [[J]]
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; CHECK-NEXT: store float [[ADD_0]], float* [[DST_GEP]], align 4
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; CHECK-NEXT: [[J_NEXT:%.*]] = add nuw nsw i64 [[J]], 1
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; CHECK-NEXT: [[INNER_EXITCOND:%.*]] = icmp eq i64 [[J_NEXT]], 100
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; CHECK-NEXT: br label [[OUTER_LATCH]]
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; CHECK: inner.split:
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; CHECK-NEXT: [[TMP0]] = add nuw nsw i64 [[J]], 1
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i64 [[TMP0]], 100
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; CHECK-NEXT: br i1 [[TMP1]], label [[EXIT:%.*]], label [[INNER]]
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; CHECK: outer.latch:
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; CHECK-NEXT: [[I_NEXT]] = add nuw nsw i32 [[I]], 1
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; CHECK-NEXT: [[OUTER_EXITCOND:%.*]] = icmp eq i32 [[I_NEXT]], 100
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; CHECK-NEXT: br i1 [[OUTER_EXITCOND]], label [[INNER_SPLIT]], label [[OUTER_HEADER]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %outer.header
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outer.header:
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%i = phi i32 [ %i.next, %outer.latch ], [ 0, %entry ]
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br label %inner
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inner:
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%j = phi i64 [ 0, %outer.header ], [ %j.next, %inner ]
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%src.gep = getelementptr inbounds [256 x float], [256 x float]* %src, <2 x i64> <i64 0, i64 1>, i64 %j
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%src.0 = extractelement <2 x float*> %src.gep, i32 0
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%lv.0 = load float, float* %src.0
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%add.0 = fadd float %lv.0, 1.0
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%dst.gep = getelementptr inbounds float, float* %dst, i64 %j
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store float %add.0, float* %dst.gep
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%j.next = add nuw nsw i64 %j, 1
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%inner.exitcond = icmp eq i64 %j.next, 100
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br i1 %inner.exitcond, label %outer.latch, label %inner
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outer.latch:
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%i.next = add nuw nsw i32 %i, 1
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%outer.exitcond = icmp eq i32 %i.next, 100
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br i1 %outer.exitcond, label %exit, label %outer.header
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exit:
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ret void
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}
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