1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2 2; RUN: opt -S -passes=indvars < %s | FileCheck %s 3 4; Produced from the test-case: 5; 6; extern void foo(char *, unsigned , unsigned *); 7; extern void bar(int *, long); 8; extern char *processBuf(char *); 9; 10; extern unsigned theSize; 11; 12; void foo(char *buf, unsigned denominator, unsigned *flag) { 13; int incr = (int) (theSize / denominator); 14; int inx = 0; 15; while (*flag) { 16; int itmp = inx + incr; 17; int i = (int) theSize; 18; bar(&i, (long) itmp); 19; buf = processBuf(buf); 20; inx = itmp; 21; } 22; } 23 24target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 25 26@theSize = external local_unnamed_addr global i32, align 4 27 28; Check that there are two PHIs followed by a 'sext' in the same block, and that 29; the test does not crash. 30define void @foo(ptr %buf, i32 %denominator, ptr %flag) local_unnamed_addr { 31; CHECK-LABEL: define void @foo 32; CHECK-SAME: (ptr [[BUF:%.*]], i32 [[DENOMINATOR:%.*]], ptr [[FLAG:%.*]]) local_unnamed_addr { 33; CHECK-NEXT: entry: 34; CHECK-NEXT: [[I:%.*]] = alloca i32, align 4 35; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr @theSize, align 4 36; CHECK-NEXT: [[DIV:%.*]] = udiv i32 [[TMP0]], [[DENOMINATOR]] 37; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[FLAG]], align 4 38; CHECK-NEXT: [[TOBOOL5:%.*]] = icmp eq i32 [[TMP1]], 0 39; CHECK-NEXT: br i1 [[TOBOOL5]], label [[WHILE_END:%.*]], label [[WHILE_BODY_LR_PH:%.*]] 40; CHECK: while.body.lr.ph: 41; CHECK-NEXT: br label [[WHILE_BODY:%.*]] 42; CHECK: while.body: 43; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[WHILE_BODY]] ], [ 0, [[WHILE_BODY_LR_PH]] ] 44; CHECK-NEXT: [[BUF_ADDR_07:%.*]] = phi ptr [ [[BUF]], [[WHILE_BODY_LR_PH]] ], [ [[CALL:%.*]], [[WHILE_BODY]] ] 45; CHECK-NEXT: [[TMP2:%.*]] = sext i32 [[DIV]] to i64 46; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nsw i64 [[INDVARS_IV]], [[TMP2]] 47; CHECK-NEXT: [[TMP3:%.*]] = load i32, ptr @theSize, align 4 48; CHECK-NEXT: store i32 [[TMP3]], ptr [[I]], align 4 49; CHECK-NEXT: call void @bar(ptr nonnull [[I]], i64 [[INDVARS_IV_NEXT]]) 50; CHECK-NEXT: [[CALL]] = call ptr @processBuf(ptr [[BUF_ADDR_07]]) 51; CHECK-NEXT: [[TMP4:%.*]] = load i32, ptr [[FLAG]], align 4 52; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[TMP4]], 0 53; CHECK-NEXT: br i1 [[TOBOOL]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]] 54; CHECK: while.end.loopexit: 55; CHECK-NEXT: br label [[WHILE_END]] 56; CHECK: while.end: 57; CHECK-NEXT: ret void 58; 59entry: 60 %i = alloca i32, align 4 61 %0 = load i32, ptr @theSize, align 4 62 %div = udiv i32 %0, %denominator 63 %1 = load i32, ptr %flag, align 4 64 %tobool5 = icmp eq i32 %1, 0 65 br i1 %tobool5, label %while.end, label %while.body.lr.ph 66 67while.body.lr.ph: ; preds = %entry 68 br label %while.body 69 70while.body: ; preds = %while.body.lr.ph, %while.body 71 %buf.addr.07 = phi ptr [ %buf, %while.body.lr.ph ], [ %call, %while.body ] 72 %inx.06 = phi i32 [ 0, %while.body.lr.ph ], [ %add, %while.body ] 73 %add = add nsw i32 %inx.06, %div 74 %2 = load i32, ptr @theSize, align 4 75 store i32 %2, ptr %i, align 4 76 %conv = sext i32 %add to i64 77 call void @bar(ptr nonnull %i, i64 %conv) 78 %call = call ptr @processBuf(ptr %buf.addr.07) 79 %3 = load i32, ptr %flag, align 4 80 %tobool = icmp eq i32 %3, 0 81 br i1 %tobool, label %while.end.loopexit, label %while.body 82 83while.end.loopexit: ; preds = %while.body 84 br label %while.end 85 86while.end: ; preds = %while.end.loopexit, %entry 87 ret void 88} 89 90declare void @bar(ptr, i64) local_unnamed_addr 91declare ptr @processBuf(ptr) local_unnamed_addr 92