| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -basic-aa -loop-idiom < %s -S | FileCheck %s |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| |
| ; CHECK: @.memset_pattern = private unnamed_addr constant [4 x i32] [i32 2, i32 2, i32 2, i32 2], align 16 |
| ; CHECK: @.memset_pattern.1 = private unnamed_addr constant [4 x i32] [i32 2, i32 2, i32 2, i32 2], align 16 |
| ; CHECK: @.memset_pattern.2 = private unnamed_addr constant [4 x i32] [i32 2, i32 2, i32 2, i32 2], align 16 |
| |
| target triple = "x86_64-apple-darwin10.0.0" |
| |
| %struct.foo = type { i32, i32 } |
| %struct.foo1 = type { i32, i32, i32 } |
| |
| ;void bar1(foo_t *f, unsigned n) { |
| ; for (unsigned i = 0; i < n; ++i) { |
| ; f[i].a = 2; |
| ; f[i].b = 2; |
| ; } |
| ;} |
| define void @bar1(%struct.foo* %f, i32 %n) nounwind ssp { |
| ; CHECK-LABEL: @bar1( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[F1:%.*]] = bitcast %struct.foo* [[F:%.*]] to i8* |
| ; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP1]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64 |
| ; CHECK-NEXT: [[TMP1:%.*]] = shl nuw nsw i64 [[TMP0]], 3 |
| ; CHECK-NEXT: call void @memset_pattern16(i8* [[F1]], i8* bitcast ([4 x i32]* @.memset_pattern to i8*), i64 [[TMP1]]) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[A:%.*]] = getelementptr inbounds [[STRUCT_FOO:%.*]], %struct.foo* [[F]], i64 [[INDVARS_IV]], i32 0 |
| ; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds [[STRUCT_FOO]], %struct.foo* [[F]], i64 [[INDVARS_IV]], i32 1 |
| ; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; CHECK-NEXT: [[LFTR_WIDEIV:%.*]] = trunc i64 [[INDVARS_IV_NEXT]] to i32 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[LFTR_WIDEIV]], [[N]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]] |
| ; CHECK: for.end.loopexit: |
| ; CHECK-NEXT: br label [[FOR_END]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %cmp1 = icmp eq i32 %n, 0 |
| br i1 %cmp1, label %for.end, label %for.body.preheader |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body |
| |
| for.body: ; preds = %for.body.preheader, %for.body |
| %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] |
| %a = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 0 |
| store i32 2, i32* %a, align 4 |
| %b = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 1 |
| store i32 2, i32* %b, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp ne i32 %lftr.wideiv, %n |
| br i1 %exitcond, label %for.body, label %for.end.loopexit |
| |
| for.end.loopexit: ; preds = %for.body |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| ret void |
| } |
| |
| ;void bar2(foo_t *f, unsigned n) { |
| ; for (unsigned i = 0; i < n; ++i) { |
| ; f[i].b = 2; |
| ; f[i].a = 2; |
| ; } |
| ;} |
| define void @bar2(%struct.foo* %f, i32 %n) nounwind ssp { |
| ; CHECK-LABEL: @bar2( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[F1:%.*]] = bitcast %struct.foo* [[F:%.*]] to i8* |
| ; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP1]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64 |
| ; CHECK-NEXT: [[TMP1:%.*]] = shl nuw nsw i64 [[TMP0]], 3 |
| ; CHECK-NEXT: call void @memset_pattern16(i8* [[F1]], i8* bitcast ([4 x i32]* @.memset_pattern.1 to i8*), i64 [[TMP1]]) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds [[STRUCT_FOO:%.*]], %struct.foo* [[F]], i64 [[INDVARS_IV]], i32 1 |
| ; CHECK-NEXT: [[A:%.*]] = getelementptr inbounds [[STRUCT_FOO]], %struct.foo* [[F]], i64 [[INDVARS_IV]], i32 0 |
| ; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; CHECK-NEXT: [[LFTR_WIDEIV:%.*]] = trunc i64 [[INDVARS_IV_NEXT]] to i32 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[LFTR_WIDEIV]], [[N]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]] |
| ; CHECK: for.end.loopexit: |
| ; CHECK-NEXT: br label [[FOR_END]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %cmp1 = icmp eq i32 %n, 0 |
| br i1 %cmp1, label %for.end, label %for.body.preheader |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body |
| |
| for.body: ; preds = %for.body.preheader, %for.body |
| %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] |
| %b = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 1 |
| store i32 2, i32* %b, align 4 |
| %a = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 0 |
| store i32 2, i32* %a, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp ne i32 %lftr.wideiv, %n |
| br i1 %exitcond, label %for.body, label %for.end.loopexit |
| |
| for.end.loopexit: ; preds = %for.body |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| ret void |
| } |
| |
| ;void bar3(foo_t *f, unsigned n) { |
| ; for (unsigned i = n; i > 0; --i) { |
| ; f[i].a = 2; |
| ; f[i].b = 2; |
| ; } |
| ;} |
| define void @bar3(%struct.foo* nocapture %f, i32 %n) nounwind ssp { |
| ; CHECK-LABEL: @bar3( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP1]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64 |
| ; CHECK-NEXT: [[TMP1:%.*]] = add i32 [[N]], -1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[TMP1]] to i64 |
| ; CHECK-NEXT: [[TMP3:%.*]] = sub i64 [[TMP0]], [[TMP2]] |
| ; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr [[STRUCT_FOO:%.*]], %struct.foo* [[F:%.*]], i64 [[TMP3]] |
| ; CHECK-NEXT: [[SCEVGEP1:%.*]] = bitcast %struct.foo* [[SCEVGEP]] to i8* |
| ; CHECK-NEXT: [[TMP4:%.*]] = shl nuw nsw i64 [[TMP0]], 3 |
| ; CHECK-NEXT: call void @memset_pattern16(i8* [[SCEVGEP1]], i8* bitcast ([4 x i32]* @.memset_pattern.2 to i8*), i64 [[TMP4]]) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[TMP0]], [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[A:%.*]] = getelementptr inbounds [[STRUCT_FOO]], %struct.foo* [[F]], i64 [[INDVARS_IV]], i32 0 |
| ; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds [[STRUCT_FOO]], %struct.foo* [[F]], i64 [[INDVARS_IV]], i32 1 |
| ; CHECK-NEXT: [[TMP5:%.*]] = trunc i64 [[INDVARS_IV]] to i32 |
| ; CHECK-NEXT: [[DEC:%.*]] = add i32 [[TMP5]], -1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[DEC]], 0 |
| ; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nsw i64 [[INDVARS_IV]], -1 |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end.loopexit: |
| ; CHECK-NEXT: br label [[FOR_END]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %cmp1 = icmp eq i32 %n, 0 |
| br i1 %cmp1, label %for.end, label %for.body.preheader |
| |
| for.body.preheader: ; preds = %entry |
| %0 = zext i32 %n to i64 |
| br label %for.body |
| |
| for.body: ; preds = %for.body.preheader, %for.body |
| %indvars.iv = phi i64 [ %0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] |
| %a = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 0 |
| store i32 2, i32* %a, align 4 |
| %b = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 1 |
| store i32 2, i32* %b, align 4 |
| %1 = trunc i64 %indvars.iv to i32 |
| %dec = add i32 %1, -1 |
| %cmp = icmp eq i32 %dec, 0 |
| %indvars.iv.next = add nsw i64 %indvars.iv, -1 |
| br i1 %cmp, label %for.end.loopexit, label %for.body |
| |
| for.end.loopexit: ; preds = %for.body |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| ret void |
| } |
| |
| ;void bar4(foo_t *f, unsigned n) { |
| ; for (unsigned i = 0; i < n; ++i) { |
| ; f[i].a = 0; |
| ; f[i].b = 1; |
| ; } |
| ;} |
| define void @bar4(%struct.foo* nocapture %f, i32 %n) nounwind ssp { |
| ; CHECK-LABEL: @bar4( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP1]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[A:%.*]] = getelementptr inbounds [[STRUCT_FOO:%.*]], %struct.foo* [[F:%.*]], i64 [[INDVARS_IV]], i32 0 |
| ; CHECK-NEXT: store i32 0, i32* [[A]], align 4 |
| ; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds [[STRUCT_FOO]], %struct.foo* [[F]], i64 [[INDVARS_IV]], i32 1 |
| ; CHECK-NEXT: store i32 1, i32* [[B]], align 4 |
| ; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; CHECK-NEXT: [[LFTR_WIDEIV:%.*]] = trunc i64 [[INDVARS_IV_NEXT]] to i32 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[LFTR_WIDEIV]], [[N]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]] |
| ; CHECK: for.end.loopexit: |
| ; CHECK-NEXT: br label [[FOR_END]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %cmp1 = icmp eq i32 %n, 0 |
| br i1 %cmp1, label %for.end, label %for.body.preheader |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body |
| |
| for.body: ; preds = %for.body.preheader, %for.body |
| %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] |
| %a = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 0 |
| store i32 0, i32* %a, align 4 |
| %b = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 1 |
| store i32 1, i32* %b, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp ne i32 %lftr.wideiv, %n |
| br i1 %exitcond, label %for.body, label %for.end.loopexit |
| |
| for.end.loopexit: ; preds = %for.body |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| ret void |
| } |
| |
| ;void bar5(foo1_t *f, unsigned n) { |
| ; for (unsigned i = 0; i < n; ++i) { |
| ; f[i].a = 1; |
| ; f[i].b = 1; |
| ; } |
| ;} |
| define void @bar5(%struct.foo1* nocapture %f, i32 %n) nounwind ssp { |
| ; CHECK-LABEL: @bar5( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP1]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[A:%.*]] = getelementptr inbounds [[STRUCT_FOO1:%.*]], %struct.foo1* [[F:%.*]], i64 [[INDVARS_IV]], i32 0 |
| ; CHECK-NEXT: store i32 1, i32* [[A]], align 4 |
| ; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds [[STRUCT_FOO1]], %struct.foo1* [[F]], i64 [[INDVARS_IV]], i32 1 |
| ; CHECK-NEXT: store i32 1, i32* [[B]], align 4 |
| ; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; CHECK-NEXT: [[LFTR_WIDEIV:%.*]] = trunc i64 [[INDVARS_IV_NEXT]] to i32 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[LFTR_WIDEIV]], [[N]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]] |
| ; CHECK: for.end.loopexit: |
| ; CHECK-NEXT: br label [[FOR_END]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %cmp1 = icmp eq i32 %n, 0 |
| br i1 %cmp1, label %for.end, label %for.body.preheader |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body |
| |
| for.body: ; preds = %for.body.preheader, %for.body |
| %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] |
| %a = getelementptr inbounds %struct.foo1, %struct.foo1* %f, i64 %indvars.iv, i32 0 |
| store i32 1, i32* %a, align 4 |
| %b = getelementptr inbounds %struct.foo1, %struct.foo1* %f, i64 %indvars.iv, i32 1 |
| store i32 1, i32* %b, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp ne i32 %lftr.wideiv, %n |
| br i1 %exitcond, label %for.body, label %for.end.loopexit |
| |
| for.end.loopexit: ; preds = %for.body |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| ret void |
| } |