66 lines
3.0 KiB
LLVM
66 lines
3.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -loop-reduce -S %s | FileCheck %s
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target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.15.0"
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declare void @use(double) readnone
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; Make sure re-used instructions do not impact the insertion points for SCEV
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; expansion.
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define void @test(double* %ioptr, i32 %X, double* %start, double* %end) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[IDX_EXT32:%.*]] = sext i32 [[X:%.*]] to i64
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; CHECK-NEXT: [[TMP0:%.*]] = shl nsw i64 [[IDX_EXT32]], 3
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; CHECK-NEXT: [[TMP1:%.*]] = add nsw i64 [[TMP0]], 8
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; CHECK-NEXT: br label [[FOR_BODY15:%.*]]
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; CHECK: for.body15:
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; CHECK-NEXT: br label [[FOR_BODY37:%.*]]
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; CHECK: for.body37:
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; CHECK-NEXT: [[P0R_0335:%.*]] = phi double* [ [[ADD_PTR94:%.*]], [[FOR_BODY37]] ], [ [[START:%.*]], [[FOR_BODY15]] ]
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; CHECK-NEXT: [[ADD_PTR94]] = getelementptr inbounds double, double* [[P0R_0335]], i64 1
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; CHECK-NEXT: [[P0R_03351:%.*]] = bitcast double* [[P0R_0335]] to i8*
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; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, i8* [[P0R_03351]], i64 [[TMP1]]
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; CHECK-NEXT: [[UGLYGEP2:%.*]] = bitcast i8* [[UGLYGEP]] to double*
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; CHECK-NEXT: [[F1I_0:%.*]] = load double, double* [[UGLYGEP2]], align 8
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; CHECK-NEXT: call void @use(double [[F1I_0]])
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; CHECK-NEXT: [[EC0:%.*]] = icmp eq double* [[END:%.*]], [[ADD_PTR94]]
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; CHECK-NEXT: br i1 [[EC0]], label [[FOR_BODY37]], label [[FOR_END_LOOPEXIT:%.*]]
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; CHECK: for.end.loopexit:
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; CHECK-NEXT: br label [[FOR_END:%.*]]
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; CHECK: for.end:
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; CHECK-NEXT: [[P0R_0_LCSSA:%.*]] = phi double* [ [[ADD_PTR94]], [[FOR_END_LOOPEXIT]] ]
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; CHECK-NEXT: [[EC1:%.*]] = icmp eq double* [[P0R_0_LCSSA]], [[END]]
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; CHECK-NEXT: br i1 [[EC1]], label [[FOR_BODY15]], label [[FOR_INC133:%.*]]
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; CHECK: for.inc133:
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; CHECK-NEXT: ret void
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;
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entry:
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%idx.ext32 = sext i32 %X to i64
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br label %for.body15
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for.body15: ; preds = %for.end, %for.body15.lr.ph
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br label %for.body37
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for.body37: ; preds = %for.body37, %for.body37.preheader
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%p0r.0335 = phi double* [ %add.ptr94, %for.body37 ], [ %start, %for.body15 ]
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%add.ptr94 = getelementptr inbounds double, double* %p0r.0335, i64 1
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%f1i.0.in = getelementptr inbounds double, double* %add.ptr94, i64 %idx.ext32
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%f1i.0 = load double, double* %f1i.0.in, align 8
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call void @use(double %f1i.0)
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%ec0 = icmp eq double* %add.ptr94, %end
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br i1 %ec0, label %for.body37, label %for.end.loopexit
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for.end.loopexit: ; preds = %for.body37
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %for.body15
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%p0r.0.lcssa = phi double* [ %add.ptr94, %for.end.loopexit ]
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%ec1 = icmp eq double* %p0r.0.lcssa, %end
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br i1 %ec1, label %for.body15, label %for.inc133
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for.inc133: ; preds = %for.end
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ret void
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}
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