| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -indvars -S | FileCheck %s |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| define void @test_int(i32 %start, i32* %p) { |
| ; CHECK-LABEL: @test_int( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP0:%.*]] = trunc i32 [[START:%.*]] to i3 |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub i3 0, [[TMP0]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[I2:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[I2_INC:%.*]], [[LOOP]] ] |
| ; CHECK-NEXT: [[I2_INC]] = add nuw nsw i32 [[I2]], 1 |
| ; CHECK-NEXT: store volatile i32 [[I2_INC]], i32* [[P:%.*]] |
| ; CHECK-NEXT: [[LFTR_WIDEIV:%.*]] = trunc i32 [[I2_INC]] to i3 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i3 [[LFTR_WIDEIV]], [[TMP1]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[END:%.*]], label [[LOOP]] |
| ; CHECK: end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %i = phi i32 [ %start, %entry ], [ %i.inc, %loop ] |
| %i2 = phi i32 [ 0, %entry ], [ %i2.inc, %loop ] |
| %i.inc = add nuw i32 %i, 1 |
| %i2.inc = add nuw i32 %i2, 1 |
| store volatile i32 %i2.inc, i32* %p |
| %and = and i32 %i.inc, 7 |
| %cmp = icmp eq i32 %and, 0 |
| br i1 %cmp, label %end, label %loop |
| |
| end: |
| ret void |
| } |
| |
| @data = global [256 x i8] zeroinitializer |
| |
| define void @test_ptr(i32 %start) { |
| ; CHECK-LABEL: @test_ptr( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP0:%.*]] = trunc i32 [[START:%.*]] to i3 |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub i3 -1, [[TMP0]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = zext i3 [[TMP1]] to i64 |
| ; CHECK-NEXT: [[TMP3:%.*]] = add nuw nsw i64 [[TMP2]], 1 |
| ; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr [256 x i8], [256 x i8]* @data, i64 0, i64 [[TMP3]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[P:%.*]] = phi i8* [ getelementptr inbounds ([256 x i8], [256 x i8]* @data, i64 0, i64 0), [[ENTRY:%.*]] ], [ [[P_INC:%.*]], [[LOOP]] ] |
| ; CHECK-NEXT: [[P_INC]] = getelementptr inbounds i8, i8* [[P]], i64 1 |
| ; CHECK-NEXT: store volatile i8 0, i8* [[P_INC]] |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i8* [[P_INC]], [[SCEVGEP]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[END:%.*]], label [[LOOP]] |
| ; CHECK: end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %i = phi i32 [ %start, %entry ], [ %i.inc, %loop ] |
| %p = phi i8* [ getelementptr inbounds ([256 x i8], [256 x i8]* @data, i64 0, i64 0), %entry ], [ %p.inc, %loop ] |
| %i.inc = add nuw i32 %i, 1 |
| %p.inc = getelementptr inbounds i8, i8* %p, i64 1 |
| store volatile i8 0, i8* %p.inc |
| %and = and i32 %i.inc, 7 |
| %cmp = icmp eq i32 %and, 0 |
| br i1 %cmp, label %end, label %loop |
| |
| end: |
| ret void |
| } |