llvm-6502/test/CodeGen/Mips/prevent-hoisting.ll
David Blaikie 5a70dd1d82 [opaque pointer type] Add textual IR support for explicit type parameter to gep operator
Similar to gep (r230786) and load (r230794) changes.

Similar migration script can be used to update test cases, which
successfully migrated all of LLVM and Polly, but about 4 test cases
needed manually changes in Clang.

(this script will read the contents of stdin and massage it into stdout
- wrap it in the 'apply.sh' script shown in previous commits + xargs to
apply it over a large set of test cases)

import fileinput
import sys
import re

rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL)

def conv(match):
  line = match.group(1)
  line += match.group(4)
  line += ", "
  line += match.group(2)
  return line

line = sys.stdin.read()
off = 0
for match in re.finditer(rep, line):
  sys.stdout.write(line[off:match.start()])
  sys.stdout.write(conv(match))
  off = match.end()
sys.stdout.write(line[off:])

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232184 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-13 18:20:45 +00:00

148 lines
8.2 KiB
LLVM

; RUN: llc -march=mipsel -O3 < %s | FileCheck %s
; MIPS direct branches implicitly define register $at. This test makes sure that
; code hoisting optimization (which moves identical instructions at the start of
; two basic blocks to the common predecessor block) takes this into account and
; doesn't move definition of $at to the predecessor block (which would make $at
; live-in at the start of successor block).
; CHECK-LABEL: readLumaCoeff8x8_CABAC
; The check for first "addiu" instruction is added so that we can match the correct "b" instruction.
; CHECK: addiu ${{[0-9]+}}, $zero, -1
; CHECK: b $[[BB0:BB[0-9_]+]]
; CHECK-NEXT: addiu ${{[0-9]+}}, $zero, 0
; Check that at the start of a fallthrough block there is a instruction that writes to $1.
; CHECK-NEXT: {{BB[0-9_#]+}}:
; CHECK-NEXT: lw $[[R1:[0-9]+]], %got(assignSE2partition)($[[R2:[0-9]+]])
; CHECK-NEXT: sll $1, $[[R0:[0-9]+]], 4
; Check that identical instructions are at the start of a target block.
; CHECK: [[BB0]]:
; CHECK-NEXT: lw $[[R1]], %got(assignSE2partition)($[[R2]])
; CHECK-NEXT: sll $1, $[[R0]], 4
%struct.img_par = type { i32, i32, i32, i32, i32*, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, [16 x [16 x i16]], [6 x [32 x i32]], [16 x [16 x i32]], [4 x [12 x [4 x [4 x i32]]]], [16 x i32], i8**, i32*, i32***, i32**, i32, i32, i32, i32, %struct.Slice*, %struct.macroblock*, i32, i32, i32, i32, i32, i32, %struct.DecRefPicMarking_s*, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, [3 x i32], i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32***, i32***, i32****, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, [3 x [2 x i32]], [3 x [2 x i32]], i32, i32, i32, i32, %struct.timeb, %struct.timeb, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32 }
%struct.Slice = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, %struct.datapartition*, %struct.MotionInfoContexts*, %struct.TextureInfoContexts*, i32, i32*, i32*, i32*, i32, i32*, i32*, i32*, i32 (%struct.img_par*, %struct.inp_par*)*, i32, i32, i32, i32 }
%struct.datapartition = type { %struct.Bitstream*, %struct.DecodingEnvironment, i32 (%struct.syntaxelement*, %struct.img_par*, %struct.datapartition*)* }
%struct.Bitstream = type { i32, i32, i32, i32, i8*, i32 }
%struct.DecodingEnvironment = type { i32, i32, i32, i32, i32, i8*, i32* }
%struct.syntaxelement = type { i32, i32, i32, i32, i32, i32, i32, i32, void (i32, i32, i32*, i32*)*, void (%struct.syntaxelement*, %struct.img_par*, %struct.DecodingEnvironment*)* }
%struct.MotionInfoContexts = type { [4 x [11 x %struct.BiContextType]], [2 x [9 x %struct.BiContextType]], [2 x [10 x %struct.BiContextType]], [2 x [6 x %struct.BiContextType]], [4 x %struct.BiContextType], [4 x %struct.BiContextType], [3 x %struct.BiContextType] }
%struct.BiContextType = type { i16, i8 }
%struct.TextureInfoContexts = type { [2 x %struct.BiContextType], [4 x %struct.BiContextType], [3 x [4 x %struct.BiContextType]], [10 x [4 x %struct.BiContextType]], [10 x [15 x %struct.BiContextType]], [10 x [15 x %struct.BiContextType]], [10 x [5 x %struct.BiContextType]], [10 x [5 x %struct.BiContextType]], [10 x [15 x %struct.BiContextType]], [10 x [15 x %struct.BiContextType]] }
%struct.inp_par = type { [1000 x i8], [1000 x i8], [1000 x i8], i32, i32, i32, i32, i32, i32, i32, i32 }
%struct.macroblock = type { i32, [2 x i32], i32, i32, %struct.macroblock*, %struct.macroblock*, i32, [2 x [4 x [4 x [2 x i32]]]], i32, i64, i64, i32, i32, [4 x i8], [4 x i8], i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32 }
%struct.DecRefPicMarking_s = type { i32, i32, i32, i32, i32, %struct.DecRefPicMarking_s* }
%struct.timeb = type { i32, i16, i16, i16 }
@assignSE2partition = external global [0 x [20 x i32]]
@FIELD_SCAN8x8 = external constant [64 x [2 x i8]]
define void @readLumaCoeff8x8_CABAC(%struct.img_par* %img, i32 %b8) {
%1 = load i32, i32* undef, align 4
br i1 false, label %2, label %3
; <label>:2 ; preds = %0
br label %3
; <label>:3 ; preds = %2, %0
br i1 undef, label %switch.lookup, label %4
switch.lookup: ; preds = %3
br label %4
; <label>:4 ; preds = %switch.lookup, %3
br i1 undef, label %5, label %6
; <label>:5 ; preds = %4
br label %6
; <label>:6 ; preds = %5, %4
%7 = phi [2 x i8]* [ getelementptr inbounds ([64 x [2 x i8]], [64 x [2 x i8]]* @FIELD_SCAN8x8, i32 0, i32 0), %4 ], [ null, %5 ]
br i1 undef, label %switch.lookup6, label %8
switch.lookup6: ; preds = %6
br label %8
; <label>:8 ; preds = %switch.lookup6, %6
br i1 undef, label %.loopexit, label %9
; <label>:9 ; preds = %8
%10 = and i32 %b8, 1
%11 = shl nuw nsw i32 %10, 3
%12 = getelementptr inbounds %struct.Slice, %struct.Slice* null, i32 0, i32 9
br i1 undef, label %.preheader, label %.preheader11
.preheader11: ; preds = %21, %9
%k.014 = phi i32 [ %27, %21 ], [ 0, %9 ]
%coef_ctr.013 = phi i32 [ %23, %21 ], [ -1, %9 ]
br i1 false, label %13, label %14
; <label>:13 ; preds = %.preheader11
br label %15
; <label>:14 ; preds = %.preheader11
br label %15
; <label>:15 ; preds = %14, %13
%16 = getelementptr inbounds [0 x [20 x i32]], [0 x [20 x i32]]* @assignSE2partition, i32 0, i32 %1, i32 undef
%17 = load i32, i32* %16, align 4
%18 = getelementptr inbounds %struct.datapartition, %struct.datapartition* null, i32 %17, i32 2
%19 = load i32 (%struct.syntaxelement*, %struct.img_par*, %struct.datapartition*)*, i32 (%struct.syntaxelement*, %struct.img_par*, %struct.datapartition*)** %18, align 4
%20 = call i32 %19(%struct.syntaxelement* undef, %struct.img_par* %img, %struct.datapartition* undef)
br i1 false, label %.loopexit, label %21
; <label>:21 ; preds = %15
%22 = add i32 %coef_ctr.013, 1
%23 = add i32 %22, 0
%24 = getelementptr inbounds [2 x i8], [2 x i8]* %7, i32 %23, i32 0
%25 = add nsw i32 0, %11
%26 = getelementptr inbounds %struct.img_par, %struct.img_par* %img, i32 0, i32 27, i32 undef, i32 %25
store i32 0, i32* %26, align 4
%27 = add nsw i32 %k.014, 1
%28 = icmp slt i32 %27, 65
br i1 %28, label %.preheader11, label %.loopexit
.preheader: ; preds = %36, %9
%k.110 = phi i32 [ %45, %36 ], [ 0, %9 ]
%coef_ctr.29 = phi i32 [ %39, %36 ], [ -1, %9 ]
br i1 false, label %29, label %30
; <label>:29 ; preds = %.preheader
br label %31
; <label>:30 ; preds = %.preheader
br label %31
; <label>:31 ; preds = %30, %29
%32 = getelementptr inbounds [0 x [20 x i32]], [0 x [20 x i32]]* @assignSE2partition, i32 0, i32 %1, i32 undef
%33 = load i32, i32* %32, align 4
%34 = getelementptr inbounds %struct.datapartition, %struct.datapartition* null, i32 %33
%35 = call i32 undef(%struct.syntaxelement* undef, %struct.img_par* %img, %struct.datapartition* %34)
br i1 false, label %.loopexit, label %36
; <label>:36 ; preds = %31
%37 = load i32, i32* undef, align 4
%38 = add i32 %coef_ctr.29, 1
%39 = add i32 %38, %37
%40 = getelementptr inbounds [2 x i8], [2 x i8]* %7, i32 %39, i32 0
%41 = load i8, i8* %40, align 1
%42 = zext i8 %41 to i32
%43 = add nsw i32 %42, %11
%44 = getelementptr inbounds %struct.img_par, %struct.img_par* %img, i32 0, i32 27, i32 undef, i32 %43
store i32 0, i32* %44, align 4
%45 = add nsw i32 %k.110, 1
%46 = icmp slt i32 %45, 65
br i1 %46, label %.preheader, label %.loopexit
.loopexit: ; preds = %36, %31, %21, %15, %8
ret void
}