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llvm-mirror/test/Transforms/GlobalOpt/2009-06-01-RecursivePHI.ll
Victor Hernandez 8736a8fca4 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 00:16:28 +00:00

123 lines
3.8 KiB
LLVM

; RUN: opt < %s -globalopt
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"
%struct.s_annealing_sched = type { i32, float, float, float, float }
%struct.s_bb = type { i32, i32, i32, i32 }
%struct.s_net = type { i8*, i32, i32*, float, float }
%struct.s_placer_opts = type { i32, float, i32, i32, i8*, i32, i32 }
@net = internal global %struct.s_net* null ; <%struct.s_net**> [#uses=4]
define fastcc void @alloc_and_load_placement_structs(i32 %place_cost_type, i32 %num_regions, float %place_cost_exp, float*** nocapture %old_region_occ_x, float*** nocapture %old_region_occ_y) nounwind ssp {
entry:
br i1 undef, label %bb.i, label %my_malloc.exit
bb.i: ; preds = %entry
unreachable
my_malloc.exit: ; preds = %entry
br i1 undef, label %bb.i81, label %my_malloc.exit83
bb.i81: ; preds = %my_malloc.exit
unreachable
my_malloc.exit83: ; preds = %my_malloc.exit
br i1 undef, label %bb.i.i57, label %my_calloc.exit.i
bb.i.i57: ; preds = %my_malloc.exit83
unreachable
my_calloc.exit.i: ; preds = %my_malloc.exit83
br i1 undef, label %bb.i4.i, label %my_calloc.exit5.i
bb.i4.i: ; preds = %my_calloc.exit.i
unreachable
my_calloc.exit5.i: ; preds = %my_calloc.exit.i
%.pre.i58 = load %struct.s_net** @net, align 4 ; <%struct.s_net*> [#uses=1]
br label %bb17.i78
bb1.i61: ; preds = %bb4.preheader.i, %bb1.i61
br i1 undef, label %bb1.i61, label %bb5.i62
bb5.i62: ; preds = %bb1.i61
br i1 undef, label %bb6.i64, label %bb15.preheader.i
bb15.preheader.i: ; preds = %bb4.preheader.i, %bb5.i62
br label %bb16.i77
bb6.i64: ; preds = %bb5.i62
br i1 undef, label %bb7.i65, label %bb8.i67
bb7.i65: ; preds = %bb6.i64
unreachable
bb8.i67: ; preds = %bb6.i64
br i1 undef, label %bb.i1.i68, label %my_malloc.exit.i70
bb.i1.i68: ; preds = %bb8.i67
unreachable
my_malloc.exit.i70: ; preds = %bb8.i67
%0 = load %struct.s_net** @net, align 4 ; <%struct.s_net*> [#uses=1]
br i1 undef, label %bb9.i71, label %bb16.i77
bb9.i71: ; preds = %bb9.i71, %my_malloc.exit.i70
%1 = load %struct.s_net** @net, align 4 ; <%struct.s_net*> [#uses=1]
br i1 undef, label %bb9.i71, label %bb16.i77
bb16.i77: ; preds = %bb9.i71, %my_malloc.exit.i70, %bb15.preheader.i
%.pre41.i.rle244 = phi %struct.s_net* [ %.pre41.i, %bb15.preheader.i ], [ %0, %my_malloc.exit.i70 ], [ %1, %bb9.i71 ] ; <%struct.s_net*> [#uses=1]
br label %bb17.i78
bb17.i78: ; preds = %bb16.i77, %my_calloc.exit5.i
%.pre41.i = phi %struct.s_net* [ %.pre41.i.rle244, %bb16.i77 ], [ %.pre.i58, %my_calloc.exit5.i ] ; <%struct.s_net*> [#uses=1]
br i1 undef, label %bb4.preheader.i, label %alloc_and_load_unique_pin_list.exit
bb4.preheader.i: ; preds = %bb17.i78
br i1 undef, label %bb1.i61, label %bb15.preheader.i
alloc_and_load_unique_pin_list.exit: ; preds = %bb17.i78
ret void
}
define void @read_net(i8* %net_file) nounwind ssp {
entry:
br i1 undef, label %bb3.us.us.i, label %bb6.preheader
bb6.preheader: ; preds = %entry
br i1 undef, label %bb7, label %bb
bb3.us.us.i: ; preds = %entry
unreachable
bb: ; preds = %bb6.preheader
br i1 undef, label %bb.i34, label %bb1.i38
bb.i34: ; preds = %bb
unreachable
bb1.i38: ; preds = %bb
%mallocsize = mul i64 28, undef ; <i64> [#uses=1]
%malloccall = tail call i8* @malloc(i64 %mallocsize) ; <i8*> [#uses=1]
%0 = bitcast i8* %malloccall to %struct.s_net* ; <%struct.s_net*> [#uses=1]
br i1 undef, label %bb.i1.i39, label %my_malloc.exit2.i
bb.i1.i39: ; preds = %bb1.i38
unreachable
my_malloc.exit2.i: ; preds = %bb1.i38
store %struct.s_net* %0, %struct.s_net** @net, align 4
br i1 undef, label %bb.i7.i40, label %my_malloc.exit8.i
bb.i7.i40: ; preds = %my_malloc.exit2.i
unreachable
my_malloc.exit8.i: ; preds = %my_malloc.exit2.i
unreachable
bb7: ; preds = %bb6.preheader
unreachable
}
declare noalias i8* @malloc(i64)