llvm-6502/test/Transforms/IndVarSimplify/udiv.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

163 lines
7.7 KiB
LLVM

; RUN: opt -indvars -S < %s | FileCheck %s
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"
@main.flags = internal global [8193 x i8] zeroinitializer, align 1 ; <[8193 x i8]*> [#uses=5]
@.str = private constant [11 x i8] c"Count: %d\0A\00" ; <[11 x i8]*> [#uses=1]
; Indvars shouldn't emit a udiv here, because there's no udiv in the
; original code. This comes from SingleSource/Benchmarks/Shootout/sieve.c.
; CHECK-LABEL: @main(
; CHECK-NOT: div
define i32 @main(i32 %argc, i8** nocapture %argv) nounwind {
entry:
%cmp = icmp eq i32 %argc, 2 ; <i1> [#uses=1]
br i1 %cmp, label %cond.true, label %while.cond.preheader
cond.true: ; preds = %entry
%arrayidx = getelementptr inbounds i8*, i8** %argv, i64 1 ; <i8**> [#uses=1]
%tmp2 = load i8*, i8** %arrayidx ; <i8*> [#uses=1]
%call = tail call i32 @atoi(i8* %tmp2) nounwind readonly ; <i32> [#uses=1]
br label %while.cond.preheader
while.cond.preheader: ; preds = %entry, %cond.true
%NUM.0.ph = phi i32 [ %call, %cond.true ], [ 170000, %entry ] ; <i32> [#uses=2]
%tobool18 = icmp eq i32 %NUM.0.ph, 0 ; <i1> [#uses=1]
br i1 %tobool18, label %while.end, label %bb.nph30
while.cond.loopexit: ; preds = %for.cond12.while.cond.loopexit_crit_edge, %for.cond12.loopexit
%count.2.lcssa = phi i32 [ %count.1.lcssa, %for.cond12.while.cond.loopexit_crit_edge ], [ 0, %for.cond12.loopexit ] ; <i32> [#uses=1]
br label %while.cond
while.cond: ; preds = %while.cond.loopexit
%tobool = icmp eq i32 %dec19, 0 ; <i1> [#uses=1]
br i1 %tobool, label %while.cond.while.end_crit_edge, label %for.cond.preheader
while.cond.while.end_crit_edge: ; preds = %while.cond
%count.2.lcssa.lcssa = phi i32 [ %count.2.lcssa, %while.cond ] ; <i32> [#uses=1]
br label %while.end
bb.nph30: ; preds = %while.cond.preheader
br label %for.cond.preheader
for.cond.preheader: ; preds = %bb.nph30, %while.cond
%dec19.in = phi i32 [ %NUM.0.ph, %bb.nph30 ], [ %dec19, %while.cond ] ; <i32> [#uses=1]
%dec19 = add i32 %dec19.in, -1 ; <i32> [#uses=2]
br i1 true, label %bb.nph, label %for.cond12.loopexit
for.cond: ; preds = %for.body
%cmp8 = icmp slt i64 %inc, 8193 ; <i1> [#uses=1]
br i1 %cmp8, label %for.body, label %for.cond.for.cond12.loopexit_crit_edge
for.cond.for.cond12.loopexit_crit_edge: ; preds = %for.cond
br label %for.cond12.loopexit
bb.nph: ; preds = %for.cond.preheader
br label %for.body
for.body: ; preds = %bb.nph, %for.cond
%i.02 = phi i64 [ 2, %bb.nph ], [ %inc, %for.cond ] ; <i64> [#uses=2]
%arrayidx10 = getelementptr inbounds [8193 x i8], [8193 x i8]* @main.flags, i64 0, i64 %i.02 ; <i8*> [#uses=1]
store i8 1, i8* %arrayidx10
%inc = add nsw i64 %i.02, 1 ; <i64> [#uses=2]
br label %for.cond
for.cond12.loopexit: ; preds = %for.cond.for.cond12.loopexit_crit_edge, %for.cond.preheader
br i1 true, label %bb.nph16, label %while.cond.loopexit
for.cond12: ; preds = %for.inc35
%cmp14 = icmp slt i64 %inc37, 8193 ; <i1> [#uses=1]
br i1 %cmp14, label %for.body15, label %for.cond12.while.cond.loopexit_crit_edge
for.cond12.while.cond.loopexit_crit_edge: ; preds = %for.cond12
%count.1.lcssa = phi i32 [ %count.1, %for.cond12 ] ; <i32> [#uses=1]
br label %while.cond.loopexit
bb.nph16: ; preds = %for.cond12.loopexit
br label %for.body15
for.body15: ; preds = %bb.nph16, %for.cond12
%count.212 = phi i32 [ 0, %bb.nph16 ], [ %count.1, %for.cond12 ] ; <i32> [#uses=2]
%i.17 = phi i64 [ 2, %bb.nph16 ], [ %inc37, %for.cond12 ] ; <i64> [#uses=4]
%arrayidx17 = getelementptr inbounds [8193 x i8], [8193 x i8]* @main.flags, i64 0, i64 %i.17 ; <i8*> [#uses=1]
%tmp18 = load i8, i8* %arrayidx17 ; <i8> [#uses=1]
%tobool19 = icmp eq i8 %tmp18, 0 ; <i1> [#uses=1]
br i1 %tobool19, label %for.inc35, label %if.then
if.then: ; preds = %for.body15
%add = shl i64 %i.17, 1 ; <i64> [#uses=2]
%cmp243 = icmp slt i64 %add, 8193 ; <i1> [#uses=1]
br i1 %cmp243, label %bb.nph5, label %for.end32
for.cond22: ; preds = %for.body25
%cmp24 = icmp slt i64 %add31, 8193 ; <i1> [#uses=1]
br i1 %cmp24, label %for.body25, label %for.cond22.for.end32_crit_edge
for.cond22.for.end32_crit_edge: ; preds = %for.cond22
br label %for.end32
bb.nph5: ; preds = %if.then
br label %for.body25
for.body25: ; preds = %bb.nph5, %for.cond22
%k.04 = phi i64 [ %add, %bb.nph5 ], [ %add31, %for.cond22 ] ; <i64> [#uses=2]
%arrayidx27 = getelementptr inbounds [8193 x i8], [8193 x i8]* @main.flags, i64 0, i64 %k.04 ; <i8*> [#uses=1]
store i8 0, i8* %arrayidx27
%add31 = add nsw i64 %k.04, %i.17 ; <i64> [#uses=2]
br label %for.cond22
for.end32: ; preds = %for.cond22.for.end32_crit_edge, %if.then
%inc34 = add nsw i32 %count.212, 1 ; <i32> [#uses=1]
br label %for.inc35
for.inc35: ; preds = %for.body15, %for.end32
%count.1 = phi i32 [ %inc34, %for.end32 ], [ %count.212, %for.body15 ] ; <i32> [#uses=2]
%inc37 = add nsw i64 %i.17, 1 ; <i64> [#uses=2]
br label %for.cond12
while.end: ; preds = %while.cond.while.end_crit_edge, %while.cond.preheader
%count.0.lcssa = phi i32 [ %count.2.lcssa.lcssa, %while.cond.while.end_crit_edge ], [ 0, %while.cond.preheader ] ; <i32> [#uses=1]
%call40 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 %count.0.lcssa) nounwind ; <i32> [#uses=0]
ret i32 0
}
declare i32 @atoi(i8* nocapture) nounwind readonly
declare i32 @printf(i8* nocapture, ...) nounwind
; IndVars shouldn't be afraid to emit a udiv here, since there's a udiv in
; the original code.
; CHECK-LABEL: @foo(
; CHECK: for.body.preheader:
; CHECK-NEXT: udiv
define void @foo(double* %p, i64 %n) nounwind {
entry:
%div0 = udiv i64 %n, 7 ; <i64> [#uses=1]
%div1 = add i64 %div0, 1
%cmp2 = icmp ult i64 0, %div1 ; <i1> [#uses=1]
br i1 %cmp2, label %for.body.preheader, label %for.end
for.body.preheader: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.preheader, %for.body
%i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ] ; <i64> [#uses=2]
%arrayidx = getelementptr inbounds double, double* %p, i64 %i.03 ; <double*> [#uses=1]
store double 0.000000e+00, double* %arrayidx
%inc = add i64 %i.03, 1 ; <i64> [#uses=2]
%divx = udiv i64 %n, 7 ; <i64> [#uses=1]
%div = add i64 %divx, 1
%cmp = icmp ult i64 %inc, %div ; <i1> [#uses=1]
br i1 %cmp, label %for.body, label %for.end.loopexit
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}