a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
143 lines
6.6 KiB
LLVM
143 lines
6.6 KiB
LLVM
; RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 < %s | FileCheck %s
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;
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; Check that the second load of @g_2 is not incorrectly eliminated by
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; DAGCombiner. It is needed since the preceding store is aliasing.
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; %.b1.i = load i1, ptr @g_2, align 4
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; ...
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; %g_717.sink.i = select i1 %cmp.i, ptr @g_717, ptr @g_2
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; store i1 true, ptr %g_717.sink.i, align 4
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; %.b = load i1, ptr @g_2, align 4
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; CHECK: # %bb.6: # %crc32_gentab.exit
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; CHECK: larl %r2, g_2
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; CHECK-NEXT: llc %r3, 0(%r2)
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; CHECK-NOT: %r2
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; CHECK: llc %r1, 0(%r2)
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@g_2 = external hidden unnamed_addr global i1, align 4
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@.str.1 = external hidden unnamed_addr constant [4 x i8], align 2
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@g_717 = external hidden unnamed_addr global i1, align 4
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@.str.2 = external hidden unnamed_addr constant [6 x i8], align 2
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@crc32_context = external hidden unnamed_addr global i32, align 4
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@crc32_tab = external hidden unnamed_addr global [256 x i32], align 4
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@g_5 = external hidden unnamed_addr global i32, align 4
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@.str.4 = external hidden unnamed_addr constant [15 x i8], align 2
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; Function Attrs: nounwind
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define signext i32 @main(i32 signext %argc, ptr nocapture readonly %argv) local_unnamed_addr #0 {
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entry:
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%cmp = icmp eq i32 %argc, 2
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br i1 %cmp, label %cond.true, label %vector.ph
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cond.true: ; preds = %entry
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%arrayidx = getelementptr inbounds ptr, ptr %argv, i64 1
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%0 = load ptr, ptr %arrayidx, align 8, !tbaa !2
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%1 = load i8, ptr %0, align 1, !tbaa !6
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%conv4 = zext i8 %1 to i32
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%sub = sub nsw i32 49, %conv4
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%cmp8 = icmp eq i32 %sub, 0
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br i1 %cmp8, label %if.then, label %if.end35
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if.then: ; preds = %cond.true
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%arrayidx11 = getelementptr inbounds i8, ptr %0, i64 1
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%2 = load i8, ptr %arrayidx11, align 1, !tbaa !6
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%conv12 = zext i8 %2 to i32
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%sub13 = sub nsw i32 0, %conv12
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br label %if.end35
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if.end35: ; preds = %if.then, %cond.true
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%__result.0 = phi i32 [ %sub13, %if.then ], [ %sub, %cond.true ]
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%phitmp = icmp eq i32 %__result.0, 0
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%spec.select = zext i1 %phitmp to i32
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br label %vector.ph
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vector.ph: ; preds = %if.end35, %entry
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%print_hash_value.0 = phi i32 [ 0, %entry ], [ %spec.select, %if.end35 ]
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br label %vector.body
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vector.body: ; preds = %vector.body, %vector.ph
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%index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
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%vec.ind22 = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %vector.ph ], [ %vec.ind.next23, %vector.body ]
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%3 = and <4 x i32> %vec.ind22, <i32 1, i32 1, i32 1, i32 1>
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%4 = icmp eq <4 x i32> %3, zeroinitializer
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%5 = lshr <4 x i32> %vec.ind22, <i32 1, i32 1, i32 1, i32 1>
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%6 = xor <4 x i32> %5, <i32 -306674912, i32 -306674912, i32 -306674912, i32 -306674912>
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%7 = select <4 x i1> %4, <4 x i32> %5, <4 x i32> %6
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%8 = and <4 x i32> %7, <i32 1, i32 1, i32 1, i32 1>
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%9 = icmp eq <4 x i32> %8, zeroinitializer
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%10 = lshr <4 x i32> %7, <i32 1, i32 1, i32 1, i32 1>
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%11 = xor <4 x i32> %10, <i32 -306674912, i32 -306674912, i32 -306674912, i32 -306674912>
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%12 = select <4 x i1> %9, <4 x i32> %10, <4 x i32> %11
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%13 = and <4 x i32> %12, <i32 1, i32 1, i32 1, i32 1>
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%14 = icmp eq <4 x i32> %13, zeroinitializer
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%15 = lshr <4 x i32> %12, <i32 1, i32 1, i32 1, i32 1>
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%16 = xor <4 x i32> %15, <i32 -306674912, i32 -306674912, i32 -306674912, i32 -306674912>
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%17 = select <4 x i1> %14, <4 x i32> %15, <4 x i32> %16
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%18 = and <4 x i32> %17, <i32 1, i32 1, i32 1, i32 1>
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%19 = icmp eq <4 x i32> %18, zeroinitializer
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%20 = lshr <4 x i32> %17, <i32 1, i32 1, i32 1, i32 1>
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%21 = xor <4 x i32> %20, <i32 -306674912, i32 -306674912, i32 -306674912, i32 -306674912>
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%22 = select <4 x i1> %19, <4 x i32> %20, <4 x i32> %21
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%23 = and <4 x i32> %22, <i32 1, i32 1, i32 1, i32 1>
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%24 = icmp eq <4 x i32> %23, zeroinitializer
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%25 = lshr <4 x i32> %22, <i32 1, i32 1, i32 1, i32 1>
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%26 = xor <4 x i32> %25, <i32 -306674912, i32 -306674912, i32 -306674912, i32 -306674912>
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%27 = select <4 x i1> %24, <4 x i32> %25, <4 x i32> %26
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%28 = and <4 x i32> %27, <i32 1, i32 1, i32 1, i32 1>
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%29 = icmp eq <4 x i32> %28, zeroinitializer
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%30 = lshr <4 x i32> %27, <i32 1, i32 1, i32 1, i32 1>
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%31 = xor <4 x i32> %30, <i32 -306674912, i32 -306674912, i32 -306674912, i32 -306674912>
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%32 = select <4 x i1> %29, <4 x i32> %30, <4 x i32> %31
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%33 = and <4 x i32> %32, <i32 1, i32 1, i32 1, i32 1>
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%34 = icmp eq <4 x i32> %33, zeroinitializer
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%35 = lshr <4 x i32> %32, <i32 1, i32 1, i32 1, i32 1>
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%36 = xor <4 x i32> %35, <i32 -306674912, i32 -306674912, i32 -306674912, i32 -306674912>
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%37 = select <4 x i1> %34, <4 x i32> %35, <4 x i32> %36
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%38 = and <4 x i32> %37, <i32 1, i32 1, i32 1, i32 1>
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%39 = icmp eq <4 x i32> %38, zeroinitializer
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%40 = lshr <4 x i32> %37, <i32 1, i32 1, i32 1, i32 1>
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%41 = xor <4 x i32> %40, <i32 -306674912, i32 -306674912, i32 -306674912, i32 -306674912>
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%42 = select <4 x i1> %39, <4 x i32> %40, <4 x i32> %41
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%43 = getelementptr inbounds [256 x i32], ptr @crc32_tab, i64 0, i64 %index
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store <4 x i32> %42, ptr %43, align 4, !tbaa !7
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%index.next = add i64 %index, 4
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%vec.ind.next23 = add <4 x i32> %vec.ind22, <i32 4, i32 4, i32 4, i32 4>
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%44 = icmp eq i64 %index.next, 256
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br i1 %44, label %crc32_gentab.exit, label %vector.body
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crc32_gentab.exit: ; preds = %vector.body
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%45 = load i32, ptr @g_5, align 4, !tbaa !7
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%.b1.i = load i1, ptr @g_2, align 4
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%46 = select i1 %.b1.i, i32 1, i32 2
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%and.i21 = and i32 %46, %45
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store i32 %and.i21, ptr @g_5, align 4, !tbaa !7
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%cmp.i = icmp eq i32 %and.i21, 1
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%g_717.sink.i = select i1 %cmp.i, ptr @g_717, ptr @g_2
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store i1 true, ptr %g_717.sink.i, align 4
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%.b = load i1, ptr @g_2, align 4
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%conv44 = select i1 %.b, i64 1, i64 2
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tail call fastcc void @transparent_crc(i64 %conv44, ptr @.str.1, i32 signext %print_hash_value.0)
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%.b20 = load i1, ptr @g_717, align 4
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%conv45 = select i1 %.b20, i64 2, i64 0
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tail call fastcc void @transparent_crc(i64 %conv45, ptr @.str.2, i32 signext %print_hash_value.0)
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%47 = load i32, ptr @crc32_context, align 4, !tbaa !7
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%48 = xor i32 %47, -1
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%call.i = tail call signext i32 (ptr, ...) @printf(ptr @.str.4, i32 zeroext %48) #2
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ret i32 0
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}
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; Function Attrs: nounwind
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declare hidden fastcc void @transparent_crc(i64, ptr, i32 signext) unnamed_addr #0
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; Function Attrs: nounwind
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declare signext i32 @printf(ptr nocapture readonly, ...) local_unnamed_addr #1
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!2 = !{!3, !3, i64 0}
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!3 = !{!"any pointer", !4, i64 0}
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!4 = !{!"omnipotent char", !5, i64 0}
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!5 = !{!"Simple C/C++ TBAA"}
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!6 = !{!4, !4, i64 0}
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!7 = !{!8, !8, i64 0}
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!8 = !{!"int", !4, i64 0}
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