104 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 52; RUN: opt -p loop-vectorize -S %s | FileCheck %s3 4target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"5target triple = "x86_64-unknown-linux-gnu"6 7; Test case for https://github.com/llvm/llvm-project/issues/110295.8define void @predicated_urem_shl_cost(ptr %A, i32 %x, i1 %c) {9; CHECK-LABEL: define void @predicated_urem_shl_cost(10; CHECK-SAME: ptr [[A:%.*]], i32 [[X:%.*]], i1 [[C:%.*]]) {11; CHECK-NEXT: [[ENTRY:.*]]:12; CHECK-NEXT: br label %[[LOOP_HEADER:.*]]13; CHECK: [[LOOP_HEADER]]:14; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 1, %[[ENTRY]] ], [ [[IV_NEXT:%.*]], %[[LOOP_LATCH:.*]] ]15; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i32, ptr [[A]], i32 [[IV]]16; CHECK-NEXT: [[L:%.*]] = load i32, ptr [[GEP]], align 417; CHECK-NEXT: br i1 [[C]], label %[[THEN:.*]], label %[[LOOP_LATCH]]18; CHECK: [[THEN]]:19; CHECK-NEXT: [[REM:%.*]] = urem i32 2, [[X]]20; CHECK-NEXT: [[SHL:%.*]] = shl i32 [[L]], [[REM]]21; CHECK-NEXT: br label %[[LOOP_LATCH]]22; CHECK: [[LOOP_LATCH]]:23; CHECK-NEXT: [[P:%.*]] = phi i32 [ 0, %[[LOOP_HEADER]] ], [ [[SHL]], %[[THEN]] ]24; CHECK-NEXT: store i32 [[P]], ptr [[GEP]], align 425; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 126; CHECK-NEXT: [[EC:%.*]] = icmp eq i32 [[IV]], 027; CHECK-NEXT: br i1 [[EC]], label %[[EXIT:.*]], label %[[LOOP_HEADER]]28; CHECK: [[EXIT]]:29; CHECK-NEXT: ret void30;31entry:32 br label %loop.header33 34loop.header:35 %iv = phi i32 [ 1, %entry ], [ %iv.next, %loop.latch ]36 %gep = getelementptr inbounds i32, ptr %A, i32 %iv37 %l = load i32, ptr %gep38 br i1 %c, label %then, label %loop.latch39 40then:41 %rem = urem i32 2, %x42 %shl = shl i32 %l, %rem43 br label %loop.latch44 45loop.latch:46 %p = phi i32 [ 0, %loop.header ], [ %shl, %then ]47 store i32 %p, ptr %gep48 %iv.next = add i32 %iv, 149 %ec = icmp eq i32 %iv, 050 br i1 %ec, label %exit, label %loop.header51 52exit:53 ret void54}55 56; Test case for https://github.com/llvm/llvm-project/issues/108697.57define void @test_wide_shift_uses_predicated_invariant_instruction(i32 %d, i1 %c, ptr %dst) {58; CHECK-LABEL: define void @test_wide_shift_uses_predicated_invariant_instruction(59; CHECK-SAME: i32 [[D:%.*]], i1 [[C:%.*]], ptr [[DST:%.*]]) {60; CHECK-NEXT: [[ENTRY:.*]]:61; CHECK-NEXT: br label %[[LOOP_HEADER:.*]]62; CHECK: [[LOOP_HEADER]]:63; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ [[IV_NEXT:%.*]], %[[LOOP_LATCH:.*]] ]64; CHECK-NEXT: br i1 [[C]], label %[[LOOP_LATCH]], label %[[ELSE:.*]]65; CHECK: [[ELSE]]:66; CHECK-NEXT: [[REM:%.*]] = urem i32 100, [[D]]67; CHECK-NEXT: [[SEXT:%.*]] = shl i32 [[REM]], 1268; CHECK-NEXT: [[SHL_I:%.*]] = shl i32 999, [[SEXT]]69; CHECK-NEXT: br label %[[LOOP_LATCH]]70; CHECK: [[LOOP_LATCH]]:71; CHECK-NEXT: [[P:%.*]] = phi i32 [ [[SHL_I]], %[[ELSE]] ], [ 0, %[[LOOP_HEADER]] ]72; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 [[IV]]73; CHECK-NEXT: store i32 [[P]], ptr [[GEP]], align 474; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 175; CHECK-NEXT: [[EC:%.*]] = icmp eq i32 [[IV_NEXT]], 10076; CHECK-NEXT: br i1 [[EC]], label %[[EXIT:.*]], label %[[LOOP_HEADER]]77; CHECK: [[EXIT]]:78; CHECK-NEXT: ret void79;80entry:81 br label %loop.header82 83loop.header:84 %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop.latch ]85 br i1 %c, label %loop.latch, label %else86 87else:88 %rem = urem i32 100, %d89 %sext = shl i32 %rem, 1290 %shl.i = shl i32 999, %sext91 br label %loop.latch92 93loop.latch:94 %p = phi i32 [ %shl.i, %else ], [ 0, %loop.header ]95 %gep = getelementptr inbounds i32, ptr %dst, i32 %iv96 store i32 %p, ptr %gep97 %iv.next = add i32 %iv, 198 %ec = icmp eq i32 %iv.next, 10099 br i1 %ec, label %exit, label %loop.header100 101exit:102 ret void103}104