mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2025-01-31 20:51:52 +01:00
bd0298b1e1
The code have been developed by Daniel Berlin over the years, and the new implementation goal is that of addressing shortcomings of the current GVN infrastructure, i.e. long compile time for large testcases, lack of phi predication, no load/store value numbering etc... The current code just implements the "core" GVN algorithm, although other pieces (load coercion, phi handling, predicate system) are already implemented in a branch out of tree. Once the core is stable, we'll start adding pieces on top of the base framework. The test currently living in test/Transform/NewGVN are a copy of the ones in GVN, with proper `XFAIL` (missing features in NewGVN). A flag will be added in a future commit to enable NewGVN, so that interested parties can exercise this code easily. Differential Revision: https://reviews.llvm.org/D26224 llvm-svn: 290346
67 lines
3.4 KiB
LLVM
67 lines
3.4 KiB
LLVM
; RUN: opt < %s -basicaa -newgvn
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
|
|
%struct.S0 = type { [2 x i8], [2 x i8], [4 x i8], [2 x i8], i32, i32, i32, i32 }
|
|
define void @fn1(%struct.S0* byval align 8 %p1) {
|
|
br label %for.cond
|
|
for.cond: ; preds = %1, %0
|
|
br label %for.end
|
|
%f2 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 2
|
|
%f9 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 7
|
|
br label %for.cond
|
|
for.end: ; preds = %for.cond
|
|
br i1 true, label %if.else, label %if.then
|
|
if.then: ; preds = %for.end
|
|
%f22 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 2
|
|
%f7 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 5
|
|
%tmp7 = load i32, i32* %f7, align 8
|
|
br label %if.end40
|
|
if.else: ; preds = %for.end
|
|
br i1 false, label %for.cond18, label %if.then6
|
|
if.then6: ; preds = %if.else
|
|
%f3 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 2
|
|
%tmp10 = bitcast %struct.S0* %p1 to i16*
|
|
%f5 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 3
|
|
%tmp11 = bitcast [2 x i8]* %f5 to i16*
|
|
%bf.load13 = load i16, i16* %tmp11, align 8
|
|
br label %if.end36
|
|
for.cond18: ; preds = %if.else
|
|
call void @fn4()
|
|
br i1 true, label %if.end, label %if.end36
|
|
if.end: ; preds = %for.cond18
|
|
%f321 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 2
|
|
%f925 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 7
|
|
%f526 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 3
|
|
%tmp15 = bitcast [2 x i8]* %f526 to i16*
|
|
%bf.load27 = load i16, i16* %tmp15, align 8
|
|
%tmp16 = bitcast %struct.S0* %p1 to i16*
|
|
br label %if.end36
|
|
if.end36: ; preds = %if.end, %for.cond18, %if.then6
|
|
%f537 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 3
|
|
%tmp17 = bitcast [2 x i8]* %f537 to i16*
|
|
%bf.load38 = load i16, i16* %tmp17, align 8
|
|
%bf.clear39 = and i16 %bf.load38, -16384
|
|
br label %if.end40
|
|
if.end40: ; preds = %if.end36, %if.then
|
|
%f6 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 4
|
|
%tmp18 = load i32, i32* %f6, align 4
|
|
call void @fn2(i32 %tmp18)
|
|
%f8 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 6
|
|
%tmp19 = load i32, i32* %f8, align 4
|
|
%tobool41 = icmp eq i32 %tmp19, 0
|
|
br i1 true, label %if.end50, label %if.then42
|
|
if.then42: ; preds = %if.end40
|
|
%tmp20 = bitcast %struct.S0* %p1 to i16*
|
|
%f547 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 3
|
|
%tmp21 = bitcast [2 x i8]* %f547 to i16*
|
|
%bf.load48 = load i16, i16* %tmp21, align 8
|
|
br label %if.end50
|
|
if.end50: ; preds = %if.then42, %if.end40
|
|
%f551 = getelementptr inbounds %struct.S0, %struct.S0* %p1, i64 0, i32 3
|
|
%tmp22 = bitcast [2 x i8]* %f551 to i16*
|
|
%bf.load52 = load i16, i16* %tmp22, align 8
|
|
%bf.clear53 = and i16 %bf.load52, -16384
|
|
ret void
|
|
}
|
|
declare void @fn2(i32)
|
|
declare void @fn4()
|