mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-24 13:33:37 +02:00
9b4dc6d522
Summary: Port LICM to the new pass manager. Reviewers: davidxl, silvas Subscribers: krasin, vitalybuka, silvas, davide, sanjoy, llvm-commits, mehdi_amini Differential Revision: http://reviews.llvm.org/D21772 llvm-svn: 275222
48 lines
1.6 KiB
LLVM
48 lines
1.6 KiB
LLVM
; RUN: opt < %s -S -basicaa -licm | FileCheck %s
|
|
; RUN: opt -aa-pipeline=basic-aa -passes='lcssa,require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' < %s -S | FileCheck %s
|
|
; This fixes PR22460
|
|
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-pc-windows-msvc"
|
|
|
|
@in = internal unnamed_addr global i32* null, align 8
|
|
@out = internal unnamed_addr global i32* null, align 8
|
|
|
|
; CHECK-LABEL: @bar
|
|
; CHECK: entry:
|
|
; CHECK: load i64, i64* bitcast (i32** @in to i64*)
|
|
; CHECK: do.body:
|
|
; CHECK-NOT: load
|
|
|
|
define i64 @bar(i32 %N) {
|
|
entry:
|
|
br label %do.body
|
|
|
|
do.body: ; preds = %l2, %entry
|
|
%i.0 = phi i32 [ 0, %entry ], [ %inc, %l2 ]
|
|
%total = phi i64 [ 0, %entry ], [ %next, %l2 ]
|
|
%c = icmp eq i32 %N, 6
|
|
br i1 %c, label %l1, label %do.body.l2_crit_edge
|
|
|
|
do.body.l2_crit_edge: ; preds = %do.body
|
|
%inval.pre = load i32*, i32** @in, align 8
|
|
br label %l2
|
|
|
|
l1: ; preds = %do.body
|
|
%v1 = load i64, i64* bitcast (i32** @in to i64*), align 8
|
|
store i64 %v1, i64* bitcast (i32** @out to i64*), align 8
|
|
%0 = inttoptr i64 %v1 to i32*
|
|
br label %l2
|
|
|
|
l2: ; preds = %do.body.l2_crit_edge, %l1
|
|
%inval = phi i32* [ %inval.pre, %do.body.l2_crit_edge ], [ %0, %l1 ]
|
|
%int = ptrtoint i32* %inval to i64
|
|
%next = add i64 %total, %int
|
|
%inc = add nsw i32 %i.0, 1
|
|
%cmp = icmp slt i32 %inc, %N
|
|
br i1 %cmp, label %do.body, label %do.end
|
|
|
|
do.end: ; preds = %l2
|
|
ret i64 %total
|
|
}
|