Mercurial > hg > CbC > CbC_llvm
comparison llvm/test/Transforms/IndVarSimplify/ult-sub-to-eq.ll @ 150:1d019706d866
LLVM10
| author | anatofuz |
|---|---|
| date | Thu, 13 Feb 2020 15:10:13 +0900 |
| parents | |
| children | 1f2b6ac9f198 |
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| 147:c2174574ed3a | 150:1d019706d866 |
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| 1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py | |
| 2 ; RUN: opt -S -indvars < %s | FileCheck %s | |
| 3 | |
| 4 ; Provide legal integer types. | |
| 5 target datalayout = "n8:16:32:64" | |
| 6 | |
| 7 | |
| 8 define void @test1(float* nocapture %autoc, float* nocapture %data, float %d, i32 %data_len, i32 %sample) nounwind { | |
| 9 ; CHECK-LABEL: @test1( | |
| 10 ; CHECK-NEXT: entry: | |
| 11 ; CHECK-NEXT: [[SUB:%.*]] = sub i32 [[DATA_LEN:%.*]], [[SAMPLE:%.*]] | |
| 12 ; CHECK-NEXT: [[CMP4:%.*]] = icmp eq i32 [[DATA_LEN]], [[SAMPLE]] | |
| 13 ; CHECK-NEXT: br i1 [[CMP4]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]] | |
| 14 ; CHECK: for.body.preheader: | |
| 15 ; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[SUB]] to i64 | |
| 16 ; CHECK-NEXT: br label [[FOR_BODY:%.*]] | |
| 17 ; CHECK: for.body: | |
| 18 ; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ] | |
| 19 ; CHECK-NEXT: [[TMP0:%.*]] = trunc i64 [[INDVARS_IV]] to i32 | |
| 20 ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[TMP0]], [[SAMPLE]] | |
| 21 ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[ADD]] to i64 | |
| 22 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, float* [[DATA:%.*]], i64 [[IDXPROM]] | |
| 23 ; CHECK-NEXT: [[TMP1:%.*]] = load float, float* [[ARRAYIDX]], align 4 | |
| 24 ; CHECK-NEXT: [[MUL:%.*]] = fmul float [[TMP1]], [[D:%.*]] | |
| 25 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds float, float* [[AUTOC:%.*]], i64 [[INDVARS_IV]] | |
| 26 ; CHECK-NEXT: [[TMP2:%.*]] = load float, float* [[ARRAYIDX2]], align 4 | |
| 27 ; CHECK-NEXT: [[ADD3:%.*]] = fadd float [[TMP2]], [[MUL]] | |
| 28 ; CHECK-NEXT: store float [[ADD3]], float* [[ARRAYIDX2]], align 4 | |
| 29 ; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 | |
| 30 ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]] | |
| 31 ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]] | |
| 32 ; CHECK: for.end.loopexit: | |
| 33 ; CHECK-NEXT: br label [[FOR_END]] | |
| 34 ; CHECK: for.end: | |
| 35 ; CHECK-NEXT: ret void | |
| 36 ; | |
| 37 entry: | |
| 38 %sub = sub i32 %data_len, %sample | |
| 39 %cmp4 = icmp eq i32 %data_len, %sample | |
| 40 br i1 %cmp4, label %for.end, label %for.body | |
| 41 | |
| 42 for.body: ; preds = %entry, %for.body | |
| 43 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ] | |
| 44 %0 = trunc i64 %indvars.iv to i32 | |
| 45 %add = add i32 %0, %sample | |
| 46 %idxprom = zext i32 %add to i64 | |
| 47 %arrayidx = getelementptr inbounds float, float* %data, i64 %idxprom | |
| 48 %1 = load float, float* %arrayidx, align 4 | |
| 49 %mul = fmul float %1, %d | |
| 50 %arrayidx2 = getelementptr inbounds float, float* %autoc, i64 %indvars.iv | |
| 51 %2 = load float, float* %arrayidx2, align 4 | |
| 52 %add3 = fadd float %2, %mul | |
| 53 store float %add3, float* %arrayidx2, align 4 | |
| 54 %indvars.iv.next = add i64 %indvars.iv, 1 | |
| 55 %3 = trunc i64 %indvars.iv.next to i32 | |
| 56 %cmp = icmp ult i32 %3, %sub | |
| 57 br i1 %cmp, label %for.body, label %for.end | |
| 58 | |
| 59 for.end: ; preds = %for.body, %entry | |
| 60 ret void | |
| 61 | |
| 62 | |
| 63 ; check that we turn the IV test into an eq. | |
| 64 } | |
| 65 |