| ; RUN: opt -codegenprepare -load-store-vectorizer %s -S -o - | FileCheck %s |
| ; RUN: opt -load-store-vectorizer %s -S -o - | FileCheck %s |
| |
| target triple = "x86_64--" |
| |
| %union = type { { [4 x [4 x [4 x [16 x float]]]], [4 x [4 x [4 x [16 x float]]]], [10 x [10 x [4 x float]]] } } |
| |
| @global_pointer = external unnamed_addr global { %union, [2000 x i8] }, align 4 |
| |
| ; Function Attrs: convergent nounwind |
| define void @test(i32 %base) #0 { |
| ; CHECK-LABEL: @test( |
| ; CHECK-NOT: load i32 |
| ; CHECK: load <2 x i32> |
| ; CHECK-NOT: load i32 |
| entry: |
| %mul331 = and i32 %base, -4 |
| %add350.4 = add i32 4, %mul331 |
| %idx351.4 = zext i32 %add350.4 to i64 |
| %arrayidx352.4 = getelementptr inbounds { %union, [2000 x i8] }, { %union, [2000 x i8] }* @global_pointer, i64 0, i32 0, i32 0, i32 1, i64 0, i64 0, i64 0, i64 %idx351.4 |
| %tmp296.4 = bitcast float* %arrayidx352.4 to i32* |
| %add350.5 = add i32 5, %mul331 |
| %idx351.5 = zext i32 %add350.5 to i64 |
| %arrayidx352.5 = getelementptr inbounds { %union, [2000 x i8] }, { %union, [2000 x i8] }* @global_pointer, i64 0, i32 0, i32 0, i32 1, i64 0, i64 0, i64 0, i64 %idx351.5 |
| %tmp296.5 = bitcast float* %arrayidx352.5 to i32* |
| %cnd = icmp ult i32 %base, 1000 |
| br i1 %cnd, label %loads, label %exit |
| |
| loads: |
| ; If and only if the loads are in a different BB from the GEPs codegenprepare |
| ; would try to turn the GEPs into math, which makes LoadStoreVectorizer's job |
| ; harder |
| %tmp297.4 = load i32, i32* %tmp296.4, align 4, !tbaa !0 |
| %tmp297.5 = load i32, i32* %tmp296.5, align 4, !tbaa !0 |
| br label %exit |
| |
| exit: |
| ret void |
| } |
| |
| ; Function Attrs: convergent nounwind |
| define void @test.codegenprepared(i32 %base) #0 { |
| ; CHECK-LABEL: @test.codegenprepared( |
| ; CHECK-NOT: load i32 |
| ; CHECK: load <2 x i32> |
| ; CHECK-NOT: load i32 |
| entry: |
| %mul331 = and i32 %base, -4 |
| %add350.4 = add i32 4, %mul331 |
| %idx351.4 = zext i32 %add350.4 to i64 |
| %add350.5 = add i32 5, %mul331 |
| %idx351.5 = zext i32 %add350.5 to i64 |
| %cnd = icmp ult i32 %base, 1000 |
| br i1 %cnd, label %loads, label %exit |
| |
| loads: ; preds = %entry |
| %sunkaddr = mul i64 %idx351.4, 4 |
| %sunkaddr1 = getelementptr inbounds i8, i8* bitcast ({ %union, [2000 x i8] }* @global_pointer to i8*), i64 %sunkaddr |
| %sunkaddr2 = getelementptr inbounds i8, i8* %sunkaddr1, i64 4096 |
| %0 = bitcast i8* %sunkaddr2 to i32* |
| %tmp297.4 = load i32, i32* %0, align 4, !tbaa !0 |
| %sunkaddr3 = mul i64 %idx351.5, 4 |
| %sunkaddr4 = getelementptr inbounds i8, i8* bitcast ({ %union, [2000 x i8] }* @global_pointer to i8*), i64 %sunkaddr3 |
| %sunkaddr5 = getelementptr inbounds i8, i8* %sunkaddr4, i64 4096 |
| %1 = bitcast i8* %sunkaddr5 to i32* |
| %tmp297.5 = load i32, i32* %1, align 4, !tbaa !0 |
| br label %exit |
| |
| exit: ; preds = %loads, %entry |
| ret void |
| } |
| |
| attributes #0 = { convergent nounwind } |
| |
| !0 = !{!1, !1, i64 0} |
| !1 = !{!"float", !2, i64 0} |
| !2 = !{!"omnipotent char", !3, i64 0} |
| !3 = !{!"Simple C++ TBAA"} |