| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -passes=loop-load-elim -S < %s | \ |
| ; RUN: FileCheck %s -check-prefix=DEFAULT |
| |
| ; RUN: opt -passes=loop-load-elim -S -enable-mem-access-versioning=0 < %s | \ |
| ; RUN: FileCheck %s -check-prefix=NO-VERSION |
| |
| ; RUN: opt -passes=loop-load-elim -S -loop-load-elimination-scev-check-threshold=1 < %s | \ |
| ; RUN: FileCheck %s -check-prefix=THRESHOLD |
| |
| ; Forwarding in the presence of symbolic strides: |
| ; |
| ; for (unsigned i = 0; i < 100; i++) |
| ; A[i + 1] = A[Stride * i] + B[i]; |
| |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| |
| define void @f(ptr noalias nocapture %A, ptr noalias nocapture readonly %B, i64 %N, |
| ; |
| ; |
| ; |
| ; |
| ; |
| ; DEFAULT-LABEL: @f( |
| ; DEFAULT-NEXT: for.body.lver.check: |
| ; DEFAULT-NEXT: [[IDENT_CHECK:%.*]] = icmp ne i64 [[STRIDE:%.*]], 1 |
| ; DEFAULT-NEXT: br i1 [[IDENT_CHECK]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]] |
| ; DEFAULT: for.body.ph.lver.orig: |
| ; DEFAULT-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]] |
| ; DEFAULT: for.body.lver.orig: |
| ; DEFAULT-NEXT: [[INDVARS_IV_LVER_ORIG:%.*]] = phi i64 [ 0, [[FOR_BODY_PH_LVER_ORIG]] ], [ [[INDVARS_IV_NEXT_LVER_ORIG:%.*]], [[FOR_BODY_LVER_ORIG]] ] |
| ; DEFAULT-NEXT: [[MUL_LVER_ORIG:%.*]] = mul i64 [[INDVARS_IV_LVER_ORIG]], [[STRIDE]] |
| ; DEFAULT-NEXT: [[ARRAYIDX_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[MUL_LVER_ORIG]] |
| ; DEFAULT-NEXT: [[LOAD_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDX_LVER_ORIG]], align 4 |
| ; DEFAULT-NEXT: [[ARRAYIDX2_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], i64 [[INDVARS_IV_LVER_ORIG]] |
| ; DEFAULT-NEXT: [[LOAD_1_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDX2_LVER_ORIG]], align 4 |
| ; DEFAULT-NEXT: [[ADD_LVER_ORIG:%.*]] = add i32 [[LOAD_1_LVER_ORIG]], [[LOAD_LVER_ORIG]] |
| ; DEFAULT-NEXT: [[INDVARS_IV_NEXT_LVER_ORIG]] = add nuw nsw i64 [[INDVARS_IV_LVER_ORIG]], 1 |
| ; DEFAULT-NEXT: [[ARRAYIDX_NEXT_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV_NEXT_LVER_ORIG]] |
| ; DEFAULT-NEXT: store i32 [[ADD_LVER_ORIG]], ptr [[ARRAYIDX_NEXT_LVER_ORIG]], align 4 |
| ; DEFAULT-NEXT: [[EXITCOND_LVER_ORIG:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT_LVER_ORIG]], [[N:%.*]] |
| ; DEFAULT-NEXT: br i1 [[EXITCOND_LVER_ORIG]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY_LVER_ORIG]] |
| ; DEFAULT: for.body.ph: |
| ; DEFAULT-NEXT: [[LOAD_INITIAL:%.*]] = load i32, ptr [[A]], align 4 |
| ; DEFAULT-NEXT: br label [[FOR_BODY:%.*]] |
| ; DEFAULT: for.body: |
| ; DEFAULT-NEXT: [[STORE_FORWARDED:%.*]] = phi i32 [ [[LOAD_INITIAL]], [[FOR_BODY_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ] |
| ; DEFAULT-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; DEFAULT-NEXT: [[MUL:%.*]] = mul i64 [[INDVARS_IV]], [[STRIDE]] |
| ; DEFAULT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[MUL]] |
| ; DEFAULT-NEXT: [[LOAD:%.*]] = load i32, ptr [[ARRAYIDX]], align 4 |
| ; DEFAULT-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[INDVARS_IV]] |
| ; DEFAULT-NEXT: [[LOAD_1:%.*]] = load i32, ptr [[ARRAYIDX2]], align 4 |
| ; DEFAULT-NEXT: [[ADD]] = add i32 [[LOAD_1]], [[STORE_FORWARDED]] |
| ; DEFAULT-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; DEFAULT-NEXT: [[ARRAYIDX_NEXT:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV_NEXT]] |
| ; DEFAULT-NEXT: store i32 [[ADD]], ptr [[ARRAYIDX_NEXT]], align 4 |
| ; DEFAULT-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[N]] |
| ; DEFAULT-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT1:%.*]], label [[FOR_BODY]] |
| ; DEFAULT: for.end.loopexit: |
| ; DEFAULT-NEXT: br label [[FOR_END:%.*]] |
| ; DEFAULT: for.end.loopexit1: |
| ; DEFAULT-NEXT: br label [[FOR_END]] |
| ; DEFAULT: for.end: |
| ; DEFAULT-NEXT: ret void |
| ; |
| ; NO-VERSION-LABEL: @f( |
| ; NO-VERSION-NEXT: entry: |
| ; NO-VERSION-NEXT: br label [[FOR_BODY:%.*]] |
| ; NO-VERSION: for.body: |
| ; NO-VERSION-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; NO-VERSION-NEXT: [[MUL:%.*]] = mul i64 [[INDVARS_IV]], [[STRIDE:%.*]] |
| ; NO-VERSION-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[MUL]] |
| ; NO-VERSION-NEXT: [[LOAD:%.*]] = load i32, ptr [[ARRAYIDX]], align 4 |
| ; NO-VERSION-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], i64 [[INDVARS_IV]] |
| ; NO-VERSION-NEXT: [[LOAD_1:%.*]] = load i32, ptr [[ARRAYIDX2]], align 4 |
| ; NO-VERSION-NEXT: [[ADD:%.*]] = add i32 [[LOAD_1]], [[LOAD]] |
| ; NO-VERSION-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; NO-VERSION-NEXT: [[ARRAYIDX_NEXT:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV_NEXT]] |
| ; NO-VERSION-NEXT: store i32 [[ADD]], ptr [[ARRAYIDX_NEXT]], align 4 |
| ; NO-VERSION-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[N:%.*]] |
| ; NO-VERSION-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; NO-VERSION: for.end: |
| ; NO-VERSION-NEXT: ret void |
| ; |
| ; THRESHOLD-LABEL: @f( |
| ; THRESHOLD-NEXT: for.body.lver.check: |
| ; THRESHOLD-NEXT: [[IDENT_CHECK:%.*]] = icmp ne i64 [[STRIDE:%.*]], 1 |
| ; THRESHOLD-NEXT: br i1 [[IDENT_CHECK]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]] |
| ; THRESHOLD: for.body.ph.lver.orig: |
| ; THRESHOLD-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]] |
| ; THRESHOLD: for.body.lver.orig: |
| ; THRESHOLD-NEXT: [[INDVARS_IV_LVER_ORIG:%.*]] = phi i64 [ 0, [[FOR_BODY_PH_LVER_ORIG]] ], [ [[INDVARS_IV_NEXT_LVER_ORIG:%.*]], [[FOR_BODY_LVER_ORIG]] ] |
| ; THRESHOLD-NEXT: [[MUL_LVER_ORIG:%.*]] = mul i64 [[INDVARS_IV_LVER_ORIG]], [[STRIDE]] |
| ; THRESHOLD-NEXT: [[ARRAYIDX_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[MUL_LVER_ORIG]] |
| ; THRESHOLD-NEXT: [[LOAD_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDX_LVER_ORIG]], align 4 |
| ; THRESHOLD-NEXT: [[ARRAYIDX2_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], i64 [[INDVARS_IV_LVER_ORIG]] |
| ; THRESHOLD-NEXT: [[LOAD_1_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDX2_LVER_ORIG]], align 4 |
| ; THRESHOLD-NEXT: [[ADD_LVER_ORIG:%.*]] = add i32 [[LOAD_1_LVER_ORIG]], [[LOAD_LVER_ORIG]] |
| ; THRESHOLD-NEXT: [[INDVARS_IV_NEXT_LVER_ORIG]] = add nuw nsw i64 [[INDVARS_IV_LVER_ORIG]], 1 |
| ; THRESHOLD-NEXT: [[ARRAYIDX_NEXT_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV_NEXT_LVER_ORIG]] |
| ; THRESHOLD-NEXT: store i32 [[ADD_LVER_ORIG]], ptr [[ARRAYIDX_NEXT_LVER_ORIG]], align 4 |
| ; THRESHOLD-NEXT: [[EXITCOND_LVER_ORIG:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT_LVER_ORIG]], [[N:%.*]] |
| ; THRESHOLD-NEXT: br i1 [[EXITCOND_LVER_ORIG]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY_LVER_ORIG]] |
| ; THRESHOLD: for.body.ph: |
| ; THRESHOLD-NEXT: [[LOAD_INITIAL:%.*]] = load i32, ptr [[A]], align 4 |
| ; THRESHOLD-NEXT: br label [[FOR_BODY:%.*]] |
| ; THRESHOLD: for.body: |
| ; THRESHOLD-NEXT: [[STORE_FORWARDED:%.*]] = phi i32 [ [[LOAD_INITIAL]], [[FOR_BODY_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ] |
| ; THRESHOLD-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; THRESHOLD-NEXT: [[MUL:%.*]] = mul i64 [[INDVARS_IV]], [[STRIDE]] |
| ; THRESHOLD-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[MUL]] |
| ; THRESHOLD-NEXT: [[LOAD:%.*]] = load i32, ptr [[ARRAYIDX]], align 4 |
| ; THRESHOLD-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[INDVARS_IV]] |
| ; THRESHOLD-NEXT: [[LOAD_1:%.*]] = load i32, ptr [[ARRAYIDX2]], align 4 |
| ; THRESHOLD-NEXT: [[ADD]] = add i32 [[LOAD_1]], [[STORE_FORWARDED]] |
| ; THRESHOLD-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; THRESHOLD-NEXT: [[ARRAYIDX_NEXT:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV_NEXT]] |
| ; THRESHOLD-NEXT: store i32 [[ADD]], ptr [[ARRAYIDX_NEXT]], align 4 |
| ; THRESHOLD-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[N]] |
| ; THRESHOLD-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT1:%.*]], label [[FOR_BODY]] |
| ; THRESHOLD: for.end.loopexit: |
| ; THRESHOLD-NEXT: br label [[FOR_END:%.*]] |
| ; THRESHOLD: for.end.loopexit1: |
| ; THRESHOLD-NEXT: br label [[FOR_END]] |
| ; THRESHOLD: for.end: |
| ; THRESHOLD-NEXT: ret void |
| ; |
| i64 %stride) { |
| |
| |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %for.body, %entry |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %mul = mul i64 %indvars.iv, %stride |
| %arrayidx = getelementptr inbounds i32, ptr %A, i64 %mul |
| %load = load i32, ptr %arrayidx, align 4 |
| %arrayidx2 = getelementptr inbounds i32, ptr %B, i64 %indvars.iv |
| %load_1 = load i32, ptr %arrayidx2, align 4 |
| %add = add i32 %load_1, %load |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %arrayidx_next = getelementptr inbounds i32, ptr %A, i64 %indvars.iv.next |
| store i32 %add, ptr %arrayidx_next, align 4 |
| %exitcond = icmp eq i64 %indvars.iv.next, %N |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| ; Similar to @f(), but with a struct type. |
| define void @f_struct(ptr noalias nocapture %A, ptr noalias nocapture readonly %B, i64 %N, |
| ; |
| ; |
| ; |
| ; |
| ; |
| ; DEFAULT-LABEL: @f_struct( |
| ; DEFAULT-NEXT: for.body.lver.check: |
| ; DEFAULT-NEXT: [[IDENT_CHECK:%.*]] = icmp ne i64 [[STRIDE:%.*]], 1 |
| ; DEFAULT-NEXT: br i1 [[IDENT_CHECK]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]] |
| ; DEFAULT: for.body.ph.lver.orig: |
| ; DEFAULT-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]] |
| ; DEFAULT: for.body.lver.orig: |
| ; DEFAULT-NEXT: [[INDVARS_IV_LVER_ORIG:%.*]] = phi i64 [ 0, [[FOR_BODY_PH_LVER_ORIG]] ], [ [[INDVARS_IV_NEXT_LVER_ORIG:%.*]], [[FOR_BODY_LVER_ORIG]] ] |
| ; DEFAULT-NEXT: [[MUL_LVER_ORIG:%.*]] = mul i64 [[INDVARS_IV_LVER_ORIG]], [[STRIDE]] |
| ; DEFAULT-NEXT: [[ARRAYIDX_LVER_ORIG:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[A:%.*]], i64 [[MUL_LVER_ORIG]] |
| ; DEFAULT-NEXT: [[LOAD_LVER_ORIG:%.*]] = load { i32, i8 }, ptr [[ARRAYIDX_LVER_ORIG]], align 4 |
| ; DEFAULT-NEXT: [[ARRAYIDX2_LVER_ORIG:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[B:%.*]], i64 [[INDVARS_IV_LVER_ORIG]] |
| ; DEFAULT-NEXT: [[LOAD_1_LVER_ORIG:%.*]] = load { i32, i8 }, ptr [[ARRAYIDX2_LVER_ORIG]], align 4 |
| ; DEFAULT-NEXT: [[V1_LVER_ORIG:%.*]] = extractvalue { i32, i8 } [[LOAD_LVER_ORIG]], 0 |
| ; DEFAULT-NEXT: [[V2_LVER_ORIG:%.*]] = extractvalue { i32, i8 } [[LOAD_1_LVER_ORIG]], 0 |
| ; DEFAULT-NEXT: [[ADD_LVER_ORIG:%.*]] = add i32 [[V1_LVER_ORIG]], [[V2_LVER_ORIG]] |
| ; DEFAULT-NEXT: [[INS_LVER_ORIG:%.*]] = insertvalue { i32, i8 } undef, i32 [[ADD_LVER_ORIG]], 0 |
| ; DEFAULT-NEXT: [[INDVARS_IV_NEXT_LVER_ORIG]] = add nuw nsw i64 [[INDVARS_IV_LVER_ORIG]], 1 |
| ; DEFAULT-NEXT: [[ARRAYIDX_NEXT_LVER_ORIG:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[A]], i64 [[INDVARS_IV_NEXT_LVER_ORIG]] |
| ; DEFAULT-NEXT: store { i32, i8 } [[INS_LVER_ORIG]], ptr [[ARRAYIDX_NEXT_LVER_ORIG]], align 4 |
| ; DEFAULT-NEXT: [[EXITCOND_LVER_ORIG:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT_LVER_ORIG]], [[N:%.*]] |
| ; DEFAULT-NEXT: br i1 [[EXITCOND_LVER_ORIG]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY_LVER_ORIG]] |
| ; DEFAULT: for.body.ph: |
| ; DEFAULT-NEXT: [[LOAD_INITIAL:%.*]] = load { i32, i8 }, ptr [[A]], align 4 |
| ; DEFAULT-NEXT: br label [[FOR_BODY:%.*]] |
| ; DEFAULT: for.body: |
| ; DEFAULT-NEXT: [[STORE_FORWARDED:%.*]] = phi { i32, i8 } [ [[LOAD_INITIAL]], [[FOR_BODY_PH]] ], [ [[INS:%.*]], [[FOR_BODY]] ] |
| ; DEFAULT-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; DEFAULT-NEXT: [[MUL:%.*]] = mul i64 [[INDVARS_IV]], [[STRIDE]] |
| ; DEFAULT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[A]], i64 [[MUL]] |
| ; DEFAULT-NEXT: [[LOAD:%.*]] = load { i32, i8 }, ptr [[ARRAYIDX]], align 4 |
| ; DEFAULT-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[B]], i64 [[INDVARS_IV]] |
| ; DEFAULT-NEXT: [[LOAD_1:%.*]] = load { i32, i8 }, ptr [[ARRAYIDX2]], align 4 |
| ; DEFAULT-NEXT: [[V1:%.*]] = extractvalue { i32, i8 } [[STORE_FORWARDED]], 0 |
| ; DEFAULT-NEXT: [[V2:%.*]] = extractvalue { i32, i8 } [[LOAD_1]], 0 |
| ; DEFAULT-NEXT: [[ADD:%.*]] = add i32 [[V1]], [[V2]] |
| ; DEFAULT-NEXT: [[INS]] = insertvalue { i32, i8 } undef, i32 [[ADD]], 0 |
| ; DEFAULT-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; DEFAULT-NEXT: [[ARRAYIDX_NEXT:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[A]], i64 [[INDVARS_IV_NEXT]] |
| ; DEFAULT-NEXT: store { i32, i8 } [[INS]], ptr [[ARRAYIDX_NEXT]], align 4 |
| ; DEFAULT-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[N]] |
| ; DEFAULT-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT1:%.*]], label [[FOR_BODY]] |
| ; DEFAULT: for.end.loopexit: |
| ; DEFAULT-NEXT: br label [[FOR_END:%.*]] |
| ; DEFAULT: for.end.loopexit1: |
| ; DEFAULT-NEXT: br label [[FOR_END]] |
| ; DEFAULT: for.end: |
| ; DEFAULT-NEXT: ret void |
| ; |
| ; NO-VERSION-LABEL: @f_struct( |
| ; NO-VERSION-NEXT: entry: |
| ; NO-VERSION-NEXT: br label [[FOR_BODY:%.*]] |
| ; NO-VERSION: for.body: |
| ; NO-VERSION-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; NO-VERSION-NEXT: [[MUL:%.*]] = mul i64 [[INDVARS_IV]], [[STRIDE:%.*]] |
| ; NO-VERSION-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[A:%.*]], i64 [[MUL]] |
| ; NO-VERSION-NEXT: [[LOAD:%.*]] = load { i32, i8 }, ptr [[ARRAYIDX]], align 4 |
| ; NO-VERSION-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[B:%.*]], i64 [[INDVARS_IV]] |
| ; NO-VERSION-NEXT: [[LOAD_1:%.*]] = load { i32, i8 }, ptr [[ARRAYIDX2]], align 4 |
| ; NO-VERSION-NEXT: [[V1:%.*]] = extractvalue { i32, i8 } [[LOAD]], 0 |
| ; NO-VERSION-NEXT: [[V2:%.*]] = extractvalue { i32, i8 } [[LOAD_1]], 0 |
| ; NO-VERSION-NEXT: [[ADD:%.*]] = add i32 [[V1]], [[V2]] |
| ; NO-VERSION-NEXT: [[INS:%.*]] = insertvalue { i32, i8 } undef, i32 [[ADD]], 0 |
| ; NO-VERSION-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; NO-VERSION-NEXT: [[ARRAYIDX_NEXT:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[A]], i64 [[INDVARS_IV_NEXT]] |
| ; NO-VERSION-NEXT: store { i32, i8 } [[INS]], ptr [[ARRAYIDX_NEXT]], align 4 |
| ; NO-VERSION-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[N:%.*]] |
| ; NO-VERSION-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; NO-VERSION: for.end: |
| ; NO-VERSION-NEXT: ret void |
| ; |
| ; THRESHOLD-LABEL: @f_struct( |
| ; THRESHOLD-NEXT: for.body.lver.check: |
| ; THRESHOLD-NEXT: [[IDENT_CHECK:%.*]] = icmp ne i64 [[STRIDE:%.*]], 1 |
| ; THRESHOLD-NEXT: br i1 [[IDENT_CHECK]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]] |
| ; THRESHOLD: for.body.ph.lver.orig: |
| ; THRESHOLD-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]] |
| ; THRESHOLD: for.body.lver.orig: |
| ; THRESHOLD-NEXT: [[INDVARS_IV_LVER_ORIG:%.*]] = phi i64 [ 0, [[FOR_BODY_PH_LVER_ORIG]] ], [ [[INDVARS_IV_NEXT_LVER_ORIG:%.*]], [[FOR_BODY_LVER_ORIG]] ] |
| ; THRESHOLD-NEXT: [[MUL_LVER_ORIG:%.*]] = mul i64 [[INDVARS_IV_LVER_ORIG]], [[STRIDE]] |
| ; THRESHOLD-NEXT: [[ARRAYIDX_LVER_ORIG:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[A:%.*]], i64 [[MUL_LVER_ORIG]] |
| ; THRESHOLD-NEXT: [[LOAD_LVER_ORIG:%.*]] = load { i32, i8 }, ptr [[ARRAYIDX_LVER_ORIG]], align 4 |
| ; THRESHOLD-NEXT: [[ARRAYIDX2_LVER_ORIG:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[B:%.*]], i64 [[INDVARS_IV_LVER_ORIG]] |
| ; THRESHOLD-NEXT: [[LOAD_1_LVER_ORIG:%.*]] = load { i32, i8 }, ptr [[ARRAYIDX2_LVER_ORIG]], align 4 |
| ; THRESHOLD-NEXT: [[V1_LVER_ORIG:%.*]] = extractvalue { i32, i8 } [[LOAD_LVER_ORIG]], 0 |
| ; THRESHOLD-NEXT: [[V2_LVER_ORIG:%.*]] = extractvalue { i32, i8 } [[LOAD_1_LVER_ORIG]], 0 |
| ; THRESHOLD-NEXT: [[ADD_LVER_ORIG:%.*]] = add i32 [[V1_LVER_ORIG]], [[V2_LVER_ORIG]] |
| ; THRESHOLD-NEXT: [[INS_LVER_ORIG:%.*]] = insertvalue { i32, i8 } undef, i32 [[ADD_LVER_ORIG]], 0 |
| ; THRESHOLD-NEXT: [[INDVARS_IV_NEXT_LVER_ORIG]] = add nuw nsw i64 [[INDVARS_IV_LVER_ORIG]], 1 |
| ; THRESHOLD-NEXT: [[ARRAYIDX_NEXT_LVER_ORIG:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[A]], i64 [[INDVARS_IV_NEXT_LVER_ORIG]] |
| ; THRESHOLD-NEXT: store { i32, i8 } [[INS_LVER_ORIG]], ptr [[ARRAYIDX_NEXT_LVER_ORIG]], align 4 |
| ; THRESHOLD-NEXT: [[EXITCOND_LVER_ORIG:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT_LVER_ORIG]], [[N:%.*]] |
| ; THRESHOLD-NEXT: br i1 [[EXITCOND_LVER_ORIG]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY_LVER_ORIG]] |
| ; THRESHOLD: for.body.ph: |
| ; THRESHOLD-NEXT: [[LOAD_INITIAL:%.*]] = load { i32, i8 }, ptr [[A]], align 4 |
| ; THRESHOLD-NEXT: br label [[FOR_BODY:%.*]] |
| ; THRESHOLD: for.body: |
| ; THRESHOLD-NEXT: [[STORE_FORWARDED:%.*]] = phi { i32, i8 } [ [[LOAD_INITIAL]], [[FOR_BODY_PH]] ], [ [[INS:%.*]], [[FOR_BODY]] ] |
| ; THRESHOLD-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; THRESHOLD-NEXT: [[MUL:%.*]] = mul i64 [[INDVARS_IV]], [[STRIDE]] |
| ; THRESHOLD-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[A]], i64 [[MUL]] |
| ; THRESHOLD-NEXT: [[LOAD:%.*]] = load { i32, i8 }, ptr [[ARRAYIDX]], align 4 |
| ; THRESHOLD-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[B]], i64 [[INDVARS_IV]] |
| ; THRESHOLD-NEXT: [[LOAD_1:%.*]] = load { i32, i8 }, ptr [[ARRAYIDX2]], align 4 |
| ; THRESHOLD-NEXT: [[V1:%.*]] = extractvalue { i32, i8 } [[STORE_FORWARDED]], 0 |
| ; THRESHOLD-NEXT: [[V2:%.*]] = extractvalue { i32, i8 } [[LOAD_1]], 0 |
| ; THRESHOLD-NEXT: [[ADD:%.*]] = add i32 [[V1]], [[V2]] |
| ; THRESHOLD-NEXT: [[INS]] = insertvalue { i32, i8 } undef, i32 [[ADD]], 0 |
| ; THRESHOLD-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; THRESHOLD-NEXT: [[ARRAYIDX_NEXT:%.*]] = getelementptr inbounds { i32, i8 }, ptr [[A]], i64 [[INDVARS_IV_NEXT]] |
| ; THRESHOLD-NEXT: store { i32, i8 } [[INS]], ptr [[ARRAYIDX_NEXT]], align 4 |
| ; THRESHOLD-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[N]] |
| ; THRESHOLD-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT1:%.*]], label [[FOR_BODY]] |
| ; THRESHOLD: for.end.loopexit: |
| ; THRESHOLD-NEXT: br label [[FOR_END:%.*]] |
| ; THRESHOLD: for.end.loopexit1: |
| ; THRESHOLD-NEXT: br label [[FOR_END]] |
| ; THRESHOLD: for.end: |
| ; THRESHOLD-NEXT: ret void |
| ; |
| i64 %stride) { |
| |
| |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %for.body, %entry |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %mul = mul i64 %indvars.iv, %stride |
| %arrayidx = getelementptr inbounds { i32, i8 }, ptr %A, i64 %mul |
| %load = load { i32, i8 }, ptr %arrayidx, align 4 |
| %arrayidx2 = getelementptr inbounds { i32, i8 }, ptr %B, i64 %indvars.iv |
| %load_1 = load { i32, i8 }, ptr %arrayidx2, align 4 |
| |
| |
| %v1 = extractvalue { i32, i8 } %load, 0 |
| %v2 = extractvalue { i32, i8} %load_1, 0 |
| %add = add i32 %v1, %v2 |
| %ins = insertvalue { i32, i8 } undef, i32 %add, 0 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %arrayidx_next = getelementptr inbounds { i32, i8 }, ptr %A, i64 %indvars.iv.next |
| store { i32, i8 } %ins, ptr %arrayidx_next, align 4 |
| %exitcond = icmp eq i64 %indvars.iv.next, %N |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| ; With two symbolic strides: |
| ; |
| ; for (unsigned i = 0; i < 100; i++) |
| ; A[Stride2 * (i + 1)] = A[Stride1 * i] + B[i]; |
| |
| define void @two_strides(ptr noalias nocapture %A, ptr noalias nocapture readonly %B, i64 %N, |
| ; |
| ; |
| ; |
| ; |
| ; |
| ; |
| ; DEFAULT-LABEL: @two_strides( |
| ; DEFAULT-NEXT: for.body.lver.check: |
| ; DEFAULT-NEXT: [[IDENT_CHECK:%.*]] = icmp ne i64 [[STRIDE_2:%.*]], 1 |
| ; DEFAULT-NEXT: [[IDENT_CHECK1:%.*]] = icmp ne i64 [[STRIDE_1:%.*]], 1 |
| ; DEFAULT-NEXT: [[TMP0:%.*]] = or i1 [[IDENT_CHECK]], [[IDENT_CHECK1]] |
| ; DEFAULT-NEXT: br i1 [[TMP0]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]] |
| ; DEFAULT: for.body.ph.lver.orig: |
| ; DEFAULT-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]] |
| ; DEFAULT: for.body.lver.orig: |
| ; DEFAULT-NEXT: [[INDVARS_IV_LVER_ORIG:%.*]] = phi i64 [ 0, [[FOR_BODY_PH_LVER_ORIG]] ], [ [[INDVARS_IV_NEXT_LVER_ORIG:%.*]], [[FOR_BODY_LVER_ORIG]] ] |
| ; DEFAULT-NEXT: [[MUL_LVER_ORIG:%.*]] = mul i64 [[INDVARS_IV_LVER_ORIG]], [[STRIDE_1]] |
| ; DEFAULT-NEXT: [[ARRAYIDX_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[MUL_LVER_ORIG]] |
| ; DEFAULT-NEXT: [[LOAD_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDX_LVER_ORIG]], align 4 |
| ; DEFAULT-NEXT: [[ARRAYIDX2_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], i64 [[INDVARS_IV_LVER_ORIG]] |
| ; DEFAULT-NEXT: [[LOAD_1_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDX2_LVER_ORIG]], align 4 |
| ; DEFAULT-NEXT: [[ADD_LVER_ORIG:%.*]] = add i32 [[LOAD_1_LVER_ORIG]], [[LOAD_LVER_ORIG]] |
| ; DEFAULT-NEXT: [[INDVARS_IV_NEXT_LVER_ORIG]] = add nuw nsw i64 [[INDVARS_IV_LVER_ORIG]], 1 |
| ; DEFAULT-NEXT: [[MUL_2_LVER_ORIG:%.*]] = mul i64 [[INDVARS_IV_NEXT_LVER_ORIG]], [[STRIDE_2]] |
| ; DEFAULT-NEXT: [[ARRAYIDX_NEXT_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[MUL_2_LVER_ORIG]] |
| ; DEFAULT-NEXT: store i32 [[ADD_LVER_ORIG]], ptr [[ARRAYIDX_NEXT_LVER_ORIG]], align 4 |
| ; DEFAULT-NEXT: [[EXITCOND_LVER_ORIG:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT_LVER_ORIG]], [[N:%.*]] |
| ; DEFAULT-NEXT: br i1 [[EXITCOND_LVER_ORIG]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY_LVER_ORIG]] |
| ; DEFAULT: for.body.ph: |
| ; DEFAULT-NEXT: [[LOAD_INITIAL:%.*]] = load i32, ptr [[A]], align 4 |
| ; DEFAULT-NEXT: br label [[FOR_BODY:%.*]] |
| ; DEFAULT: for.body: |
| ; DEFAULT-NEXT: [[STORE_FORWARDED:%.*]] = phi i32 [ [[LOAD_INITIAL]], [[FOR_BODY_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ] |
| ; DEFAULT-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; DEFAULT-NEXT: [[MUL:%.*]] = mul i64 [[INDVARS_IV]], [[STRIDE_1]] |
| ; DEFAULT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[MUL]] |
| ; DEFAULT-NEXT: [[LOAD:%.*]] = load i32, ptr [[ARRAYIDX]], align 4 |
| ; DEFAULT-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[INDVARS_IV]] |
| ; DEFAULT-NEXT: [[LOAD_1:%.*]] = load i32, ptr [[ARRAYIDX2]], align 4 |
| ; DEFAULT-NEXT: [[ADD]] = add i32 [[LOAD_1]], [[STORE_FORWARDED]] |
| ; DEFAULT-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; DEFAULT-NEXT: [[MUL_2:%.*]] = mul i64 [[INDVARS_IV_NEXT]], [[STRIDE_2]] |
| ; DEFAULT-NEXT: [[ARRAYIDX_NEXT:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[MUL_2]] |
| ; DEFAULT-NEXT: store i32 [[ADD]], ptr [[ARRAYIDX_NEXT]], align 4 |
| ; DEFAULT-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[N]] |
| ; DEFAULT-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT2:%.*]], label [[FOR_BODY]] |
| ; DEFAULT: for.end.loopexit: |
| ; DEFAULT-NEXT: br label [[FOR_END:%.*]] |
| ; DEFAULT: for.end.loopexit2: |
| ; DEFAULT-NEXT: br label [[FOR_END]] |
| ; DEFAULT: for.end: |
| ; DEFAULT-NEXT: ret void |
| ; |
| ; NO-VERSION-LABEL: @two_strides( |
| ; NO-VERSION-NEXT: entry: |
| ; NO-VERSION-NEXT: br label [[FOR_BODY:%.*]] |
| ; NO-VERSION: for.body: |
| ; NO-VERSION-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; NO-VERSION-NEXT: [[MUL:%.*]] = mul i64 [[INDVARS_IV]], [[STRIDE_1:%.*]] |
| ; NO-VERSION-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[MUL]] |
| ; NO-VERSION-NEXT: [[LOAD:%.*]] = load i32, ptr [[ARRAYIDX]], align 4 |
| ; NO-VERSION-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], i64 [[INDVARS_IV]] |
| ; NO-VERSION-NEXT: [[LOAD_1:%.*]] = load i32, ptr [[ARRAYIDX2]], align 4 |
| ; NO-VERSION-NEXT: [[ADD:%.*]] = add i32 [[LOAD_1]], [[LOAD]] |
| ; NO-VERSION-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; NO-VERSION-NEXT: [[MUL_2:%.*]] = mul i64 [[INDVARS_IV_NEXT]], [[STRIDE_2:%.*]] |
| ; NO-VERSION-NEXT: [[ARRAYIDX_NEXT:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[MUL_2]] |
| ; NO-VERSION-NEXT: store i32 [[ADD]], ptr [[ARRAYIDX_NEXT]], align 4 |
| ; NO-VERSION-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[N:%.*]] |
| ; NO-VERSION-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; NO-VERSION: for.end: |
| ; NO-VERSION-NEXT: ret void |
| ; |
| ; THRESHOLD-LABEL: @two_strides( |
| ; THRESHOLD-NEXT: entry: |
| ; THRESHOLD-NEXT: br label [[FOR_BODY:%.*]] |
| ; THRESHOLD: for.body: |
| ; THRESHOLD-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; THRESHOLD-NEXT: [[MUL:%.*]] = mul i64 [[INDVARS_IV]], [[STRIDE_1:%.*]] |
| ; THRESHOLD-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[MUL]] |
| ; THRESHOLD-NEXT: [[LOAD:%.*]] = load i32, ptr [[ARRAYIDX]], align 4 |
| ; THRESHOLD-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], i64 [[INDVARS_IV]] |
| ; THRESHOLD-NEXT: [[LOAD_1:%.*]] = load i32, ptr [[ARRAYIDX2]], align 4 |
| ; THRESHOLD-NEXT: [[ADD:%.*]] = add i32 [[LOAD_1]], [[LOAD]] |
| ; THRESHOLD-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; THRESHOLD-NEXT: [[MUL_2:%.*]] = mul i64 [[INDVARS_IV_NEXT]], [[STRIDE_2:%.*]] |
| ; THRESHOLD-NEXT: [[ARRAYIDX_NEXT:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[MUL_2]] |
| ; THRESHOLD-NEXT: store i32 [[ADD]], ptr [[ARRAYIDX_NEXT]], align 4 |
| ; THRESHOLD-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[N:%.*]] |
| ; THRESHOLD-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; THRESHOLD: for.end: |
| ; THRESHOLD-NEXT: ret void |
| ; |
| i64 %stride.1, i64 %stride.2) { |
| |
| |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %for.body, %entry |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %mul = mul i64 %indvars.iv, %stride.1 |
| %arrayidx = getelementptr inbounds i32, ptr %A, i64 %mul |
| %load = load i32, ptr %arrayidx, align 4 |
| %arrayidx2 = getelementptr inbounds i32, ptr %B, i64 %indvars.iv |
| %load_1 = load i32, ptr %arrayidx2, align 4 |
| %add = add i32 %load_1, %load |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %mul.2 = mul i64 %indvars.iv.next, %stride.2 |
| %arrayidx_next = getelementptr inbounds i32, ptr %A, i64 %mul.2 |
| store i32 %add, ptr %arrayidx_next, align 4 |
| %exitcond = icmp eq i64 %indvars.iv.next, %N |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
