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llvm-mirror/test/Transforms/GlobalOpt/heap-sra-phi.ll

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Change tests from "opt %s" to "opt < %s" so that opt doesn't see the input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. llvm-svn: 81537
2009-09-11 20:01:28 +02:00
; RUN: opt < %s -globalopt -S | grep {tmp.f1 = phi i32. }
; RUN: opt < %s -globalopt -S | grep {tmp.f0 = phi i32. }
Re-commit r86077 now that r86290 fixes the 179.art and 175.vpr ARM regressions. Here is the original commit message: This commit updates malloc optimizations to operate on malloc calls that have constant int size arguments. Update CreateMalloc so that its callers specify the size to allocate: MallocInst-autoupgrade users use non-TargetData-computed allocation sizes. Optimization uses use TargetData to compute the allocation size. Now that malloc calls can have constant sizes, update isArrayMallocHelper() to use TargetData to determine the size of the malloced type and the size of malloced arrays. Extend getMallocType() to support malloc calls that have non-bitcast uses. Update OptimizeGlobalAddressOfMalloc() to optimize malloc calls that have non-bitcast uses. The bitcast use of a malloc call has to be treated specially here because the uses of the bitcast need to be replaced and the bitcast needs to be erased (just like the malloc call) for OptimizeGlobalAddressOfMalloc() to work correctly. Update PerformHeapAllocSRoA() to optimize malloc calls that have non-bitcast uses. The bitcast use of the malloc is not handled specially here because ReplaceUsesOfMallocWithGlobal replaces through the bitcast use. Update OptimizeOnceStoredGlobal() to not care about the malloc calls' bitcast use. Update all globalopt malloc tests to not rely on autoupgraded-MallocInsts, but instead use explicit malloc calls with correct allocation sizes. llvm-svn: 86311
2009-11-07 01:16:28 +01:00
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"
Enhance heap sra to be substantially more aggressive w.r.t PHI nodes. This allows it to do fairly general phi insertion if a load from a pointer global wants to be SRAd but the load is used by (recursive) phi nodes. This fixes a pessimization on ppc introduced by Load PRE. llvm-svn: 61123
2008-12-17 06:28:49 +01:00
%struct.foo = type { i32, i32 }
@X = internal global %struct.foo* null ; <%struct.foo**> [#uses=2]
define void @bar(i32 %Size) nounwind noinline {
entry:
Re-commit r86077 now that r86290 fixes the 179.art and 175.vpr ARM regressions. Here is the original commit message: This commit updates malloc optimizations to operate on malloc calls that have constant int size arguments. Update CreateMalloc so that its callers specify the size to allocate: MallocInst-autoupgrade users use non-TargetData-computed allocation sizes. Optimization uses use TargetData to compute the allocation size. Now that malloc calls can have constant sizes, update isArrayMallocHelper() to use TargetData to determine the size of the malloced type and the size of malloced arrays. Extend getMallocType() to support malloc calls that have non-bitcast uses. Update OptimizeGlobalAddressOfMalloc() to optimize malloc calls that have non-bitcast uses. The bitcast use of a malloc call has to be treated specially here because the uses of the bitcast need to be replaced and the bitcast needs to be erased (just like the malloc call) for OptimizeGlobalAddressOfMalloc() to work correctly. Update PerformHeapAllocSRoA() to optimize malloc calls that have non-bitcast uses. The bitcast use of the malloc is not handled specially here because ReplaceUsesOfMallocWithGlobal replaces through the bitcast use. Update OptimizeOnceStoredGlobal() to not care about the malloc calls' bitcast use. Update all globalopt malloc tests to not rely on autoupgraded-MallocInsts, but instead use explicit malloc calls with correct allocation sizes. llvm-svn: 86311
2009-11-07 01:16:28 +01:00
%malloccall = tail call i8* @malloc(i64 8000000) ; <i8*> [#uses=1]
%tmp = bitcast i8* %malloccall to [1000000 x %struct.foo]* ; <[1000000 x %struct.foo]*> [#uses=1]
Enhance heap sra to be substantially more aggressive w.r.t PHI nodes. This allows it to do fairly general phi insertion if a load from a pointer global wants to be SRAd but the load is used by (recursive) phi nodes. This fixes a pessimization on ppc introduced by Load PRE. llvm-svn: 61123
2008-12-17 06:28:49 +01:00
%.sub = getelementptr [1000000 x %struct.foo]* %tmp, i32 0, i32 0 ; <%struct.foo*> [#uses=1]
store %struct.foo* %.sub, %struct.foo** @X, align 4
ret void
}
Re-commit r86077 now that r86290 fixes the 179.art and 175.vpr ARM regressions. Here is the original commit message: This commit updates malloc optimizations to operate on malloc calls that have constant int size arguments. Update CreateMalloc so that its callers specify the size to allocate: MallocInst-autoupgrade users use non-TargetData-computed allocation sizes. Optimization uses use TargetData to compute the allocation size. Now that malloc calls can have constant sizes, update isArrayMallocHelper() to use TargetData to determine the size of the malloced type and the size of malloced arrays. Extend getMallocType() to support malloc calls that have non-bitcast uses. Update OptimizeGlobalAddressOfMalloc() to optimize malloc calls that have non-bitcast uses. The bitcast use of a malloc call has to be treated specially here because the uses of the bitcast need to be replaced and the bitcast needs to be erased (just like the malloc call) for OptimizeGlobalAddressOfMalloc() to work correctly. Update PerformHeapAllocSRoA() to optimize malloc calls that have non-bitcast uses. The bitcast use of the malloc is not handled specially here because ReplaceUsesOfMallocWithGlobal replaces through the bitcast use. Update OptimizeOnceStoredGlobal() to not care about the malloc calls' bitcast use. Update all globalopt malloc tests to not rely on autoupgraded-MallocInsts, but instead use explicit malloc calls with correct allocation sizes. llvm-svn: 86311
2009-11-07 01:16:28 +01:00
declare noalias i8* @malloc(i64)
Enhance heap sra to be substantially more aggressive w.r.t PHI nodes. This allows it to do fairly general phi insertion if a load from a pointer global wants to be SRAd but the load is used by (recursive) phi nodes. This fixes a pessimization on ppc introduced by Load PRE. llvm-svn: 61123
2008-12-17 06:28:49 +01:00
define i32 @baz() nounwind readonly noinline {
bb1.thread:
%tmpLD1 = load %struct.foo** @X, align 4 ; <%struct.foo*> [#uses=1]
br label %bb1
bb1: ; preds = %bb1, %bb1.thread
%tmp = phi %struct.foo* [%tmpLD1, %bb1.thread ], [ %tmpLD2, %bb1 ] ; <i32> [#uses=2]
%i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ] ; <i32> [#uses=2]
%sum.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %tmp3, %bb1 ] ; <i32> [#uses=1]
%tmp1 = getelementptr %struct.foo* %tmp, i32 %i.0.reg2mem.0, i32 0 ; <i32*> [#uses=1]
%tmp2 = load i32* %tmp1, align 4 ; <i32> [#uses=1]
%tmp6 = add i32 %tmp2, %sum.0.reg2mem.0 ; <i32> [#uses=2]
%tmp4 = getelementptr %struct.foo* %tmp, i32 %i.0.reg2mem.0, i32 1 ; <i32*> [#uses=1]
%tmp5 = load i32 * %tmp4
%tmp3 = add i32 %tmp5, %tmp6
%indvar.next = add i32 %i.0.reg2mem.0, 1 ; <i32> [#uses=2]
%tmpLD2 = load %struct.foo** @X, align 4 ; <%struct.foo*> [#uses=1]
%exitcond = icmp eq i32 %indvar.next, 1200 ; <i1> [#uses=1]
br i1 %exitcond, label %bb2, label %bb1
bb2: ; preds = %bb1
ret i32 %tmp3
}
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