derek.holloway
7502bf64a4
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127 lines
4.2 KiB
LLVM
127 lines
4.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5
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; RUN: opt < %s -disable-output "-passes=print<da>" \
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; RUN: "-aa-pipeline=basic-aa,globals-aa" 2>&1 | FileCheck %s
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define void @i32_subscript(ptr %a) {
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; CHECK-LABEL: 'i32_subscript'
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; CHECK-NEXT: Src: %0 = load i32, ptr %a.addr, align 4 --> Dst: %0 = load i32, ptr %a.addr, align 4
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; CHECK-NEXT: da analyze - none!
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; CHECK-NEXT: Src: %0 = load i32, ptr %a.addr, align 4 --> Dst: store i32 %1, ptr %a.addr.2, align 4
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; CHECK-NEXT: da analyze - anti [*|<]!
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; CHECK-NEXT: Src: store i32 %1, ptr %a.addr.2, align 4 --> Dst: store i32 %1, ptr %a.addr.2, align 4
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; CHECK-NEXT: da analyze - output [S]!
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;
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entry:
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br label %for.body
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for.body:
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%i = phi i32 [ 0, %entry ], [ %i.inc, %for.body ]
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%a.addr = getelementptr i32, ptr %a, i32 %i
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%a.addr.2 = getelementptr i32, ptr %a, i32 5
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%0 = load i32, ptr %a.addr, align 4
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%1 = add i32 %0, 1
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store i32 %1, ptr %a.addr.2, align 4
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%i.inc = add nsw i32 %i, 1
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%i.inc.ext = sext i32 %i to i64
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%exitcond = icmp ne i64 %i.inc.ext, 100
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br i1 %exitcond, label %for.body, label %for.end
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for.end:
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ret void
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}
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; Test for a bug, which caused an assert in ScalarEvolution because
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; the Dependence Analyzer attempted to zero extend a type to a smaller
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; type.
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; void t(unsigned int *a, unsigned int n) {
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; for (unsigned int i = 0; i != n; i++) {
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; a[(unsigned short)i] = g;
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; }}
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@g = common global i32 0, align 4
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define void @t(ptr noalias %a, i32 %n) nounwind {
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; CHECK-LABEL: 't'
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; CHECK-NEXT: Src: %0 = load i32, ptr @g, align 4 --> Dst: %0 = load i32, ptr @g, align 4
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; CHECK-NEXT: da analyze - input [S]!
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; CHECK-NEXT: Src: %0 = load i32, ptr @g, align 4 --> Dst: store i32 %0, ptr %arrayidx, align 4
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; CHECK-NEXT: da analyze - none!
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; CHECK-NEXT: Src: store i32 %0, ptr %arrayidx, align 4 --> Dst: store i32 %0, ptr %arrayidx, align 4
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; CHECK-NEXT: da analyze - output [*]!
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;
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entry:
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%cmp1 = icmp eq i32 %n, 0
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br i1 %cmp1, label %for.end, label %for.body
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for.body:
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%i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
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%0 = load i32, ptr @g, align 4
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%idxprom = and i32 %i.02, 65535
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%arrayidx = getelementptr inbounds i32, ptr %a, i32 %idxprom
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store i32 %0, ptr %arrayidx, align 4
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%inc = add i32 %i.02, 1
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%cmp = icmp eq i32 %inc, %n
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br i1 %cmp, label %for.end, label %for.body
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for.end:
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ret void
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}
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define void @i16_wrap(ptr %a) {
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; CHECK-LABEL: 'i16_wrap'
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; CHECK-NEXT: Src: %0 = load i64, ptr %idx, align 4 --> Dst: %0 = load i64, ptr %idx, align 4
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; CHECK-NEXT: da analyze - input [*]!
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; CHECK-NEXT: Src: %0 = load i64, ptr %idx, align 4 --> Dst: store i64 %1, ptr %idx, align 4
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; CHECK-NEXT: da analyze - anti [*|<]!
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; CHECK-NEXT: Src: store i64 %1, ptr %idx, align 4 --> Dst: store i64 %1, ptr %idx, align 4
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; CHECK-NEXT: da analyze - output [*]!
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;
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entry:
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br label %for.body
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for.body:
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%i = phi i64 [0, %entry], [%i.inc, %for.inc]
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%i.tr = trunc i64 %i to i16
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%idx = getelementptr i64, ptr %a, i16 %i.tr
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%0 = load i64, ptr %idx
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%1 = add i64 %0, 1
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store i64 %1, ptr %idx
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br label %for.inc
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for.inc:
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%i.inc = add nuw i64 %i, 1
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%cmp = icmp ult i64 %i.inc, 17179869184
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br i1 %cmp, label %for.body, label %for.end
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for.end:
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ret void
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}
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define void @i8_stride_wrap(ptr noalias %a, ptr noalias %b) {
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; CHECK-LABEL: 'i8_stride_wrap'
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; CHECK-NEXT: Src: %0 = load i32, ptr %idx, align 4 --> Dst: %0 = load i32, ptr %idx, align 4
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; CHECK-NEXT: da analyze - input [S]!
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; CHECK-NEXT: Src: %0 = load i32, ptr %idx, align 4 --> Dst: store i32 %1, ptr %idx.2, align 4
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; CHECK-NEXT: da analyze - none!
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; CHECK-NEXT: Src: store i32 %1, ptr %idx.2, align 4 --> Dst: store i32 %1, ptr %idx.2, align 4
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; CHECK-NEXT: da analyze - none!
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;
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entry:
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br label %for.body
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for.body:
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%i = phi i32 [1,%entry], [%i.inc, %for.inc]
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%i.tr = trunc i32 %i to i8
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%idx = getelementptr i32, ptr %a, i8 %i.tr
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%idx.2 = getelementptr i32, ptr %b, i32 %i
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%0 = load i32, ptr %idx, align 4
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%1 = add i32 %0, 1
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store i32 %1, ptr %idx.2, align 4
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br label %for.inc
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for.inc:
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%i.inc = add nsw i32 %i, 256
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%exitcond = icmp ult i32 %i, 65536
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br i1 %exitcond, label %for.body, label %for.end
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for.end:
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ret void
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}
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