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