| ; RUN: opt < %s -indvars -S | FileCheck %s |
| |
| define void @test0(i32* %a) { |
| ; CHECK-LABEL: @test0( |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.body |
| %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ] |
| %rem = srem i32 %i.01, 2 |
| ; CHECK-NOT: srem |
| ; CHECK: urem |
| %idxprom = sext i32 %rem to i64 |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom |
| store i32 %i.01, i32* %arrayidx, align 4 |
| %inc = add nsw i32 %i.01, 1 |
| %cmp = icmp slt i32 %inc, 64 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| define void @test2(i32* %a, i32 %d) { |
| ; CHECK-LABEL: @test2( |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.body |
| %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ] |
| %mul = mul nsw i32 %i.01, 64 |
| %rem = srem i32 %mul, %d |
| ; CHECK-NOT: urem |
| %idxprom = sext i32 %rem to i64 |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom |
| store i32 %i.01, i32* %arrayidx, align 4 |
| %inc = add nsw i32 %i.01, 1 |
| %cmp = icmp slt i32 %inc, 64 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| define void @test3(i32* %a) { |
| ; CHECK-LABEL: @test3( |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.body |
| %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ] |
| %rem = srem i32 2048, %i.01 |
| ; CHECK: urem |
| ; CHECK-NOT: srem |
| %idxprom = sext i32 %rem to i64 |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom |
| store i32 %i.01, i32* %arrayidx, align 4 |
| %inc = add nsw i32 %i.01, 1 |
| %cmp = icmp slt i32 %inc, 64 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| define void @test4(i32* %a) { |
| ; CHECK-LABEL: @test4( |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.body |
| %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ] |
| %mul = mul nsw i32 %i.01, 64 |
| %rem = srem i32 %mul, 7 |
| ; CHECK: urem |
| ; CHECK-NOT: srem |
| %idxprom = sext i32 %rem to i64 |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom |
| store i32 %i.01, i32* %arrayidx, align 4 |
| %inc = add nsw i32 %i.01, 1 |
| %cmp = icmp slt i32 %inc, 64 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| define void @test5(i32* %a) { |
| ; CHECK-LABEL: @test5( |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.body |
| %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ] |
| %mul = mul nsw i32 %i.01, 64 |
| %rem = srem i32 %mul, 6 |
| ; CHECK: urem |
| ; CHECK-NOT: srem |
| %idxprom = sext i32 %rem to i64 |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom |
| store i32 %i.01, i32* %arrayidx, align 4 |
| %inc = add nsw i32 %i.01, 1 |
| %cmp = icmp slt i32 %inc, 64 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |