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143 lines
3.7 KiB
LLVM
143 lines
3.7 KiB
LLVM
; RUN: opt < %s -disable-output "-passes=print<da>" \
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; RUN: "-aa-pipeline=basic-aa,type-based-aa" 2>&1 | FileCheck %s
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; RUN: opt < %s -analyze -basic-aa -tbaa -da | FileCheck %s
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; CHECK-LABEL: 'Dependence Analysis' for function 'test_no_noalias'
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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define void @test_no_noalias(i32* %A, i32* %B) {
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store i32 1, i32* %A
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store i32 2, i32* %B
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ret void
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}
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; CHECK-LABEL: test_one_noalias
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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define void @test_one_noalias(i32* noalias %A, i32* %B) {
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store i32 1, i32* %A
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store i32 2, i32* %B
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ret void
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}
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; CHECK-LABEL: test_two_noalias
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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define void @test_two_noalias(i32* noalias %A, i32* noalias %B) {
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store i32 1, i32* %A
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store i32 2, i32* %B
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ret void
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}
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; CHECK-LABEL: test_global_alias
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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@g = global i32 5
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define void @test_global_alias(i32* %A) {
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store i32 1, i32* %A
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store i32 2, i32* @g
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ret void
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}
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; CHECK-LABEL: test_global_noalias
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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define void @test_global_noalias(i32* noalias %A) {
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store i32 1, i32* %A
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store i32 2, i32* @g
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ret void
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}
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; CHECK-LABEL: test_global_size
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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@a = global i16 5, align 2
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@b = global i16* @a, align 4
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define void @test_global_size() {
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%l0 = load i16*, i16** @b, align 4
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%l1 = load i16, i16* %l0, align 2
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store i16 1, i16* @a, align 2
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ret void
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}
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; CHECK-LABEL: test_tbaa_same
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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define void @test_tbaa_same(i32* %A, i32* %B) {
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store i32 1, i32* %A, !tbaa !5
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store i32 2, i32* %B, !tbaa !5
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ret void
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}
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; CHECK-LABEL: test_tbaa_diff
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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; CHECK: da analyze - none!
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define void @test_tbaa_diff(i32* %A, i16* %B) {
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store i32 1, i32* %A, !tbaa !5
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store i16 2, i16* %B, !tbaa !9
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ret void
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}
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; CHECK-LABEL: tbaa_loop
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; CHECK: da analyze - input
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; CHECK: da analyze - none
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; CHECK: da analyze - output
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define void @tbaa_loop(i32 %I, i32 %J, i32* nocapture %A, i16* nocapture readonly %B) {
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entry:
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%cmp = icmp ne i32 %J, 0
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%cmp122 = icmp ne i32 %I, 0
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%or.cond = and i1 %cmp, %cmp122
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br i1 %or.cond, label %for.outer.preheader, label %for.end
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for.outer.preheader:
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br label %for.outer
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for.outer:
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%i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
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br label %for.inner
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for.inner:
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%j.us = phi i32 [ 0, %for.outer ], [ %inc.us, %for.inner ]
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%sum1.us = phi i32 [ 0, %for.outer ], [ %add.us, %for.inner ]
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%arrayidx.us = getelementptr inbounds i16, i16* %B, i32 %j.us
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%0 = load i16, i16* %arrayidx.us, align 4, !tbaa !9
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%sext = sext i16 %0 to i32
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%add.us = add i32 %sext, %sum1.us
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%inc.us = add nuw i32 %j.us, 1
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%exitcond = icmp eq i32 %inc.us, %J
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br i1 %exitcond, label %for.latch, label %for.inner
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for.latch:
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%add.us.lcssa = phi i32 [ %add.us, %for.inner ]
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%arrayidx6.us = getelementptr inbounds i32, i32* %A, i32 %i.us
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store i32 %add.us.lcssa, i32* %arrayidx6.us, align 4, !tbaa !5
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%add8.us = add nuw i32 %i.us, 1
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%exitcond25 = icmp eq i32 %add8.us, %I
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br i1 %exitcond25, label %for.end.loopexit, label %for.outer
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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!5 = !{!6, !6, i64 0}
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!6 = !{!"int", !7, i64 0}
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!7 = !{!"omnipotent char", !8, i64 0}
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!8 = !{!"Simple C/C++ TBAA"}
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!9 = !{!10, !10, i64 0}
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!10 = !{!"short", !7, i64 0}
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