| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -passes=loop-unroll -unroll-peel-count=2 -S %s | FileCheck --check-prefix=PEEL2 %s |
| ; RUN: opt -passes=loop-unroll -unroll-peel-count=8 -S %s | FileCheck --check-prefix=PEEL8 %s |
| |
| ; Test case for PR45939. Make sure unroll count is adjusted when loop is peeled and unrolled. |
| |
| @a = global [8 x i32] zeroinitializer, align 16 |
| |
| define void @test1() { |
| ; PEEL2-LABEL: @test1( |
| ; PEEL2-NEXT: entry: |
| ; PEEL2-NEXT: br label [[FOR_BODY_PEEL_BEGIN:%.*]] |
| ; PEEL2: for.body.peel.begin: |
| ; PEEL2-NEXT: br label [[FOR_BODY_PEEL:%.*]] |
| ; PEEL2: for.body.peel: |
| ; PEEL2-NEXT: [[ARRAYIDX_PEEL:%.*]] = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 0 |
| ; PEEL2-NEXT: [[TMP0:%.*]] = trunc i64 0 to i32 |
| ; PEEL2-NEXT: store i32 [[TMP0]], ptr [[ARRAYIDX_PEEL]], align 4 |
| ; PEEL2-NEXT: [[INDVARS_IV_NEXT_PEEL:%.*]] = add nuw nsw i64 0, 1 |
| ; PEEL2-NEXT: [[EXITCOND_PEEL:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT_PEEL]], 8 |
| ; PEEL2-NEXT: br i1 [[EXITCOND_PEEL]], label [[FOR_BODY_PEEL_NEXT:%.*]], label [[FOR_EXIT:%.*]] |
| ; PEEL2: for.body.peel.next: |
| ; PEEL2-NEXT: br label [[FOR_BODY_PEEL2:%.*]] |
| ; PEEL2: for.body.peel2: |
| ; PEEL2-NEXT: [[ARRAYIDX_PEEL3:%.*]] = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 [[INDVARS_IV_NEXT_PEEL]] |
| ; PEEL2-NEXT: [[TMP1:%.*]] = trunc i64 [[INDVARS_IV_NEXT_PEEL]] to i32 |
| ; PEEL2-NEXT: store i32 [[TMP1]], ptr [[ARRAYIDX_PEEL3]], align 4 |
| ; PEEL2-NEXT: [[INDVARS_IV_NEXT_PEEL4:%.*]] = add nuw nsw i64 [[INDVARS_IV_NEXT_PEEL]], 1 |
| ; PEEL2-NEXT: [[EXITCOND_PEEL5:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT_PEEL4]], 8 |
| ; PEEL2-NEXT: br i1 [[EXITCOND_PEEL5]], label [[FOR_BODY_PEEL_NEXT1:%.*]], label [[FOR_EXIT]] |
| ; PEEL2: for.body.peel.next1: |
| ; PEEL2-NEXT: br label [[FOR_BODY_PEEL_NEXT6:%.*]] |
| ; PEEL2: for.body.peel.next6: |
| ; PEEL2-NEXT: br label [[ENTRY_PEEL_NEWPH:%.*]] |
| ; PEEL2: entry.peel.newph: |
| ; PEEL2-NEXT: br label [[FOR_BODY:%.*]] |
| ; PEEL2: for.body: |
| ; PEEL2-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT_PEEL4]], [[ENTRY_PEEL_NEWPH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; PEEL2-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 [[INDVARS_IV]] |
| ; PEEL2-NEXT: [[TMP2:%.*]] = trunc i64 [[INDVARS_IV]] to i32 |
| ; PEEL2-NEXT: store i32 [[TMP2]], ptr [[ARRAYIDX]], align 4 |
| ; PEEL2-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; PEEL2-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], 8 |
| ; PEEL2-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_EXIT_LOOPEXIT:%.*]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; PEEL2: for.exit.loopexit: |
| ; PEEL2-NEXT: br label [[FOR_EXIT]] |
| ; PEEL2: for.exit: |
| ; PEEL2-NEXT: ret void |
| ; |
| ; PEEL8-LABEL: @test1( |
| ; PEEL8-NEXT: entry: |
| ; PEEL8-NEXT: br label [[FOR_BODY_PEEL_BEGIN:%.*]] |
| ; PEEL8: for.body.peel.begin: |
| ; PEEL8-NEXT: br label [[FOR_BODY_PEEL:%.*]] |
| ; PEEL8: for.body.peel: |
| ; PEEL8-NEXT: [[ARRAYIDX_PEEL:%.*]] = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 0 |
| ; PEEL8-NEXT: [[TMP0:%.*]] = trunc i64 0 to i32 |
| ; PEEL8-NEXT: store i32 [[TMP0]], ptr [[ARRAYIDX_PEEL]], align 4 |
| ; PEEL8-NEXT: [[INDVARS_IV_NEXT_PEEL:%.*]] = add nuw nsw i64 0, 1 |
| ; PEEL8-NEXT: [[EXITCOND_PEEL:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT_PEEL]], 8 |
| ; PEEL8-NEXT: br i1 [[EXITCOND_PEEL]], label [[FOR_BODY_PEEL_NEXT:%.*]], label [[FOR_EXIT:%.*]] |
| ; PEEL8: for.body.peel.next: |
| ; PEEL8-NEXT: br label [[FOR_BODY_PEEL2:%.*]] |
| ; PEEL8: for.body.peel2: |
| ; PEEL8-NEXT: [[ARRAYIDX_PEEL3:%.*]] = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 [[INDVARS_IV_NEXT_PEEL]] |
| ; PEEL8-NEXT: [[TMP1:%.*]] = trunc i64 [[INDVARS_IV_NEXT_PEEL]] to i32 |
| ; PEEL8-NEXT: store i32 [[TMP1]], ptr [[ARRAYIDX_PEEL3]], align 4 |
| ; PEEL8-NEXT: [[INDVARS_IV_NEXT_PEEL4:%.*]] = add nuw nsw i64 [[INDVARS_IV_NEXT_PEEL]], 1 |
| ; PEEL8-NEXT: [[EXITCOND_PEEL5:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT_PEEL4]], 8 |
| ; PEEL8-NEXT: br i1 [[EXITCOND_PEEL5]], label [[FOR_BODY_PEEL_NEXT1:%.*]], label [[FOR_EXIT]] |
| ; PEEL8: for.body.peel.next1: |
| ; PEEL8-NEXT: br label [[FOR_BODY_PEEL7:%.*]] |
| ; PEEL8: for.body.peel7: |
| ; PEEL8-NEXT: [[ARRAYIDX_PEEL8:%.*]] = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 [[INDVARS_IV_NEXT_PEEL4]] |
| ; PEEL8-NEXT: [[TMP2:%.*]] = trunc i64 [[INDVARS_IV_NEXT_PEEL4]] to i32 |
| ; PEEL8-NEXT: store i32 [[TMP2]], ptr [[ARRAYIDX_PEEL8]], align 4 |
| ; PEEL8-NEXT: [[INDVARS_IV_NEXT_PEEL9:%.*]] = add nuw nsw i64 [[INDVARS_IV_NEXT_PEEL4]], 1 |
| ; PEEL8-NEXT: [[EXITCOND_PEEL10:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT_PEEL9]], 8 |
| ; PEEL8-NEXT: br i1 [[EXITCOND_PEEL10]], label [[FOR_BODY_PEEL_NEXT6:%.*]], label [[FOR_EXIT]] |
| ; PEEL8: for.body.peel.next6: |
| ; PEEL8-NEXT: br label [[FOR_BODY_PEEL12:%.*]] |
| ; PEEL8: for.body.peel12: |
| ; PEEL8-NEXT: [[ARRAYIDX_PEEL13:%.*]] = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 [[INDVARS_IV_NEXT_PEEL9]] |
| ; PEEL8-NEXT: [[TMP3:%.*]] = trunc i64 [[INDVARS_IV_NEXT_PEEL9]] to i32 |
| ; PEEL8-NEXT: store i32 [[TMP3]], ptr [[ARRAYIDX_PEEL13]], align 4 |
| ; PEEL8-NEXT: [[INDVARS_IV_NEXT_PEEL14:%.*]] = add nuw nsw i64 [[INDVARS_IV_NEXT_PEEL9]], 1 |
| ; PEEL8-NEXT: [[EXITCOND_PEEL15:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT_PEEL14]], 8 |
| ; PEEL8-NEXT: br i1 [[EXITCOND_PEEL15]], label [[FOR_BODY_PEEL_NEXT11:%.*]], label [[FOR_EXIT]] |
| ; PEEL8: for.body.peel.next11: |
| ; PEEL8-NEXT: br label [[FOR_BODY_PEEL17:%.*]] |
| ; PEEL8: for.body.peel17: |
| ; PEEL8-NEXT: [[ARRAYIDX_PEEL18:%.*]] = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 [[INDVARS_IV_NEXT_PEEL14]] |
| ; PEEL8-NEXT: [[TMP4:%.*]] = trunc i64 [[INDVARS_IV_NEXT_PEEL14]] to i32 |
| ; PEEL8-NEXT: store i32 [[TMP4]], ptr [[ARRAYIDX_PEEL18]], align 4 |
| ; PEEL8-NEXT: [[INDVARS_IV_NEXT_PEEL19:%.*]] = add nuw nsw i64 [[INDVARS_IV_NEXT_PEEL14]], 1 |
| ; PEEL8-NEXT: [[EXITCOND_PEEL20:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT_PEEL19]], 8 |
| ; PEEL8-NEXT: br i1 [[EXITCOND_PEEL20]], label [[FOR_BODY_PEEL_NEXT16:%.*]], label [[FOR_EXIT]] |
| ; PEEL8: for.body.peel.next16: |
| ; PEEL8-NEXT: br label [[FOR_BODY_PEEL22:%.*]] |
| ; PEEL8: for.body.peel22: |
| ; PEEL8-NEXT: [[ARRAYIDX_PEEL23:%.*]] = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 [[INDVARS_IV_NEXT_PEEL19]] |
| ; PEEL8-NEXT: [[TMP5:%.*]] = trunc i64 [[INDVARS_IV_NEXT_PEEL19]] to i32 |
| ; PEEL8-NEXT: store i32 [[TMP5]], ptr [[ARRAYIDX_PEEL23]], align 4 |
| ; PEEL8-NEXT: [[INDVARS_IV_NEXT_PEEL24:%.*]] = add nuw nsw i64 [[INDVARS_IV_NEXT_PEEL19]], 1 |
| ; PEEL8-NEXT: [[EXITCOND_PEEL25:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT_PEEL24]], 8 |
| ; PEEL8-NEXT: br i1 [[EXITCOND_PEEL25]], label [[FOR_BODY_PEEL_NEXT21:%.*]], label [[FOR_EXIT]] |
| ; PEEL8: for.body.peel.next21: |
| ; PEEL8-NEXT: br label [[FOR_BODY_PEEL27:%.*]] |
| ; PEEL8: for.body.peel27: |
| ; PEEL8-NEXT: [[ARRAYIDX_PEEL28:%.*]] = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 [[INDVARS_IV_NEXT_PEEL24]] |
| ; PEEL8-NEXT: [[TMP6:%.*]] = trunc i64 [[INDVARS_IV_NEXT_PEEL24]] to i32 |
| ; PEEL8-NEXT: store i32 [[TMP6]], ptr [[ARRAYIDX_PEEL28]], align 4 |
| ; PEEL8-NEXT: [[INDVARS_IV_NEXT_PEEL29:%.*]] = add nuw nsw i64 [[INDVARS_IV_NEXT_PEEL24]], 1 |
| ; PEEL8-NEXT: [[EXITCOND_PEEL30:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT_PEEL29]], 8 |
| ; PEEL8-NEXT: br i1 [[EXITCOND_PEEL30]], label [[FOR_BODY_PEEL_NEXT26:%.*]], label [[FOR_EXIT]] |
| ; PEEL8: for.body.peel.next26: |
| ; PEEL8-NEXT: br label [[FOR_BODY_PEEL32:%.*]] |
| ; PEEL8: for.body.peel32: |
| ; PEEL8-NEXT: [[ARRAYIDX_PEEL33:%.*]] = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 [[INDVARS_IV_NEXT_PEEL29]] |
| ; PEEL8-NEXT: [[TMP7:%.*]] = trunc i64 [[INDVARS_IV_NEXT_PEEL29]] to i32 |
| ; PEEL8-NEXT: store i32 [[TMP7]], ptr [[ARRAYIDX_PEEL33]], align 4 |
| ; PEEL8-NEXT: [[INDVARS_IV_NEXT_PEEL34:%.*]] = add nuw nsw i64 [[INDVARS_IV_NEXT_PEEL29]], 1 |
| ; PEEL8-NEXT: [[EXITCOND_PEEL35:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT_PEEL34]], 8 |
| ; PEEL8-NEXT: br i1 [[EXITCOND_PEEL35]], label [[FOR_BODY_PEEL_NEXT31:%.*]], label [[FOR_EXIT]] |
| ; PEEL8: for.body.peel.next31: |
| ; PEEL8-NEXT: br label [[FOR_BODY_PEEL_NEXT36:%.*]] |
| ; PEEL8: for.body.peel.next36: |
| ; PEEL8-NEXT: br label [[ENTRY_PEEL_NEWPH:%.*]] |
| ; PEEL8: entry.peel.newph: |
| ; PEEL8-NEXT: br label [[FOR_BODY:%.*]] |
| ; PEEL8: for.body: |
| ; PEEL8-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT_PEEL34]], [[ENTRY_PEEL_NEWPH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; PEEL8-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 [[INDVARS_IV]] |
| ; PEEL8-NEXT: [[TMP8:%.*]] = trunc i64 [[INDVARS_IV]] to i32 |
| ; PEEL8-NEXT: store i32 [[TMP8]], ptr [[ARRAYIDX]], align 4 |
| ; PEEL8-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; PEEL8-NEXT: br i1 true, label [[FOR_BODY]], label [[FOR_EXIT_LOOPEXIT:%.*]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; PEEL8: for.exit.loopexit: |
| ; PEEL8-NEXT: br label [[FOR_EXIT]] |
| ; PEEL8: for.exit: |
| ; PEEL8-NEXT: ret void |
| ; |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.body |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds [8 x i32], ptr @a, i64 0, i64 %indvars.iv |
| %0 = trunc i64 %indvars.iv to i32 |
| store i32 %0, ptr %arrayidx, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond = icmp ne i64 %indvars.iv.next, 8 |
| br i1 %exitcond, label %for.body, label %for.exit |
| |
| for.exit: ; preds = %for.body |
| ret void |
| } |
