c6c89bffdc
This removes some duplication from splitCallSite and makes it easier to add additional code dealing with each predecessor. It also allows us to split for more than 2 predecessors, although that is not enabled for now. Reviewers: junbuml, mcrosier, davidxl, davide Reviewed By: junbuml Differential Revision: https://reviews.llvm.org/D41858 llvm-svn: 322599
120 lines
4.0 KiB
LLVM
120 lines
4.0 KiB
LLVM
; RUN: opt < %s -callsite-splitting -inline -instcombine -jump-threading -S | FileCheck %s
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; RUN: opt < %s -passes='function(callsite-splitting),cgscc(inline),function(instcombine,jump-threading)' -S | FileCheck %s
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64-linaro-linux-gnueabi"
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%struct.bitmap = type { i32, %struct.bitmap* }
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;CHECK-LABEL: @caller
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;CHECK-LABEL: NextCond:
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;CHECK: br {{.*}} label %callee.exit
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;CHECK-LABEL: CallSiteBB.predBB.split:
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;CHECK: call void @callee(%struct.bitmap* null, %struct.bitmap* null, %struct.bitmap* %b_elt, i1 false)
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;CHECK-LABEL: callee.exit:
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;CHECK: call void @dummy2(%struct.bitmap* %a_elt)
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define void @caller(i1 %c, %struct.bitmap* %a_elt, %struct.bitmap* %b_elt) {
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entry:
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br label %Top
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Top:
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%tobool1 = icmp eq %struct.bitmap* %a_elt, null
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br i1 %tobool1, label %CallSiteBB, label %NextCond
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NextCond:
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%cmp = icmp ne %struct.bitmap* %b_elt, null
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br i1 %cmp, label %CallSiteBB, label %End
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CallSiteBB:
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%p = phi i1 [0, %Top], [%c, %NextCond]
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call void @callee(%struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %b_elt, i1 %p)
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br label %End
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End:
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ret void
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}
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define void @callee(%struct.bitmap* %dst_elt, %struct.bitmap* %a_elt, %struct.bitmap* %b_elt, i1 %c) {
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entry:
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%tobool = icmp ne %struct.bitmap* %a_elt, null
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%tobool1 = icmp ne %struct.bitmap* %b_elt, null
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%or.cond = and i1 %tobool, %tobool1
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br i1 %or.cond, label %Cond, label %Big
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Cond:
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%cmp = icmp eq %struct.bitmap* %dst_elt, %a_elt
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br i1 %cmp, label %Small, label %Big
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Small:
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call void @dummy2(%struct.bitmap* %a_elt)
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br label %End
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Big:
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call void @dummy1(%struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt)
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call void @dummy1(%struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt)
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call void @dummy1(%struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt)
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call void @dummy1(%struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt)
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call void @dummy1(%struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt)
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call void @dummy1(%struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt)
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call void @dummy1(%struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt, %struct.bitmap* %a_elt)
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br label %End
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End:
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ret void
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}
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declare void @dummy2(%struct.bitmap*)
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declare void @dummy1(%struct.bitmap*, %struct.bitmap*, %struct.bitmap*, %struct.bitmap*, %struct.bitmap*, %struct.bitmap*)
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;CHECK-LABEL: @caller2
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;CHECK-LABEL: CallSiteBB.predBB.split:
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;CHECK: call void @dummy3()
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;CHECK-LABEL: CallSiteBB.predBB.split1:
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;CHECK: call void @dummy4()
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;CheCK-LABEL: CallSiteBB:
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;CHECK: %phi.call = phi i1 [ true, %CallSiteBB.predBB.split ], [ false, %CallSiteBB.predBB.split1 ]
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;CHECK: call void @foo(i1 %phi.call)
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define void @caller2(i1 %c, %struct.bitmap* %a_elt, %struct.bitmap* %b_elt, %struct.bitmap* %c_elt) {
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entry:
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br label %Top
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Top:
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%tobool1 = icmp eq %struct.bitmap* %a_elt, %b_elt
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br i1 %tobool1, label %CallSiteBB, label %NextCond
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NextCond:
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%cmp = icmp ne %struct.bitmap* %b_elt, %c_elt
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br i1 %cmp, label %CallSiteBB, label %End
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CallSiteBB:
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%phi = phi i1 [0, %Top],[1, %NextCond]
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%u = call i1 @callee2(i1 %phi)
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call void @foo(i1 %u)
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br label %End
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End:
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ret void
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}
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define i1 @callee2(i1 %b) {
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entry:
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br i1 %b, label %BB1, label %BB2
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BB1:
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call void @dummy3()
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br label %End
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BB2:
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call void @dummy4()
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br label %End
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End:
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ret i1 %b
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}
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declare void @dummy3()
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declare void @dummy4()
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declare void @foo(i1)
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