heap-sra-2.ll 1.5 KB

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  1. ; RUN: opt < %s -globalopt -S | FileCheck %s
  2. target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
  3. %struct.foo = type { i32, i32 }
  4. @X = internal global %struct.foo* null ; <%struct.foo**> [#uses=2]
  5. ; CHECK: @X.f0
  6. ; CHECK: @X.f1
  7. define void @bar(i32 %Size) nounwind noinline {
  8. entry:
  9. %malloccall = tail call i8* @malloc(i64 8000000) ; <i8*> [#uses=1]
  10. %0 = bitcast i8* %malloccall to [1000000 x %struct.foo]* ; <[1000000 x %struct.foo]*> [#uses=1]
  11. %.sub = getelementptr [1000000 x %struct.foo], [1000000 x %struct.foo]* %0, i32 0, i32 0 ; <%struct.foo*> [#uses=1]
  12. store %struct.foo* %.sub, %struct.foo** @X, align 4
  13. ret void
  14. }
  15. declare noalias i8* @malloc(i64)
  16. define i32 @baz() nounwind readonly noinline {
  17. bb1.thread:
  18. %0 = load %struct.foo*, %struct.foo** @X, align 4 ; <%struct.foo*> [#uses=1]
  19. br label %bb1
  20. bb1: ; preds = %bb1, %bb1.thread
  21. %i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ] ; <i32> [#uses=2]
  22. %sum.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %3, %bb1 ] ; <i32> [#uses=1]
  23. %1 = getelementptr %struct.foo, %struct.foo* %0, i32 %i.0.reg2mem.0, i32 0 ; <i32*> [#uses=1]
  24. %2 = load i32, i32* %1, align 4 ; <i32> [#uses=1]
  25. %3 = add i32 %2, %sum.0.reg2mem.0 ; <i32> [#uses=2]
  26. %indvar.next = add i32 %i.0.reg2mem.0, 1 ; <i32> [#uses=2]
  27. %exitcond = icmp eq i32 %indvar.next, 1200 ; <i1> [#uses=1]
  28. br i1 %exitcond, label %bb2, label %bb1
  29. bb2: ; preds = %bb1
  30. ret i32 %3
  31. }