diff options
| author | Victor Hernandez <vhernandez@apple.com> | 2009-10-28 20:18:55 +0000 |
|---|---|---|
| committer | Victor Hernandez <vhernandez@apple.com> | 2009-10-28 20:18:55 +0000 |
| commit | 90f48e7c91a8faa875ba889ca66b137ffd46e34a (patch) | |
| tree | aa65e67f70dcc037d749a7a91ab809becdeafc87 /test/Transforms/GlobalOpt/heap-sra-4.ll | |
| parent | 5c00b4af61bb6abff2fb28ddd904808623a7db23 (diff) | |
| download | llvm-90f48e7c91a8faa875ba889ca66b137ffd46e34a.tar.gz llvm-90f48e7c91a8faa875ba889ca66b137ffd46e34a.tar.bz2 llvm-90f48e7c91a8faa875ba889ca66b137ffd46e34a.tar.xz | |
Extend getMallocArraySize() to determine the array size if the malloc argument is:
ArraySize * ElementSize
ElementSize * ArraySize
ArraySize << log2(ElementSize)
ElementSize << log2(ArraySize)
Refactor isArrayMallocHelper and delete isSafeToGetMallocArraySize, so that there is only 1 copy of the malloc array determining logic.
Update users of getMallocArraySize() to not bother calling isArrayMalloc() as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85421 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/GlobalOpt/heap-sra-4.ll')
| -rw-r--r-- | test/Transforms/GlobalOpt/heap-sra-4.ll | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/test/Transforms/GlobalOpt/heap-sra-4.ll b/test/Transforms/GlobalOpt/heap-sra-4.ll new file mode 100644 index 0000000000..ae97ef1aad --- /dev/null +++ b/test/Transforms/GlobalOpt/heap-sra-4.ll @@ -0,0 +1,41 @@ +; RUN: opt < %s -globalopt -S | FileCheck %s + +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" +target triple = "i386-apple-darwin7" + + %struct.foo = type { i32, i32 } +@X = internal global %struct.foo* null +; CHECK: @X.f0 +; CHECK: @X.f1 + +define void @bar(i32 %Size) nounwind noinline { +entry: + %mallocsize = shl i32 ptrtoint (%struct.foo* getelementptr (%struct.foo* null, i32 1) to i32), 9, ; <i32> [#uses=1] + %malloccall = tail call i8* @malloc(i32 %mallocsize) ; <i8*> [#uses=1] +; CHECK: @malloc(i32 mul (i32 512 + %.sub = bitcast i8* %malloccall to %struct.foo* ; <%struct.foo*> [#uses=1] + store %struct.foo* %.sub, %struct.foo** @X, align 4 + ret void +} + +declare noalias i8* @malloc(i32) + +define i32 @baz() nounwind readonly noinline { +bb1.thread: + %0 = load %struct.foo** @X, align 4 + br label %bb1 + +bb1: ; preds = %bb1, %bb1.thread + %i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ] + %sum.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %3, %bb1 ] + %1 = getelementptr %struct.foo* %0, i32 %i.0.reg2mem.0, i32 0 + %2 = load i32* %1, align 4 + %3 = add i32 %2, %sum.0.reg2mem.0 + %indvar.next = add i32 %i.0.reg2mem.0, 1 + %exitcond = icmp eq i32 %indvar.next, 1200 + br i1 %exitcond, label %bb2, label %bb1 + +bb2: ; preds = %bb1 + ret i32 %3 +} + |