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llvm-mirror/test/Transforms/LoopSimplify/preserve-scev.ll
Chandler Carruth 8a358b3669 Convert all tests using TCL-style quoting to use shell-style quoting.
This was done through the aid of a terrible Perl creation. I will not
paste any of the horrors here. Suffice to say, it require multiple
staged rounds of replacements, state carried between, and a few
nested-construct-parsing hacks that I'm not proud of. It happens, by
luck, to be able to deal with all the TCL-quoting patterns in evidence
in the LLVM test suite.

If anyone is maintaining large out-of-tree test trees, feel free to poke
me and I'll send you the steps I used to convert things, as well as
answer any painful questions etc. IRC works best for this type of thing
I find.

Once converted, switch the LLVM lit config to use ShTests the same as
Clang. In addition to being able to delete large amounts of Python code
from 'lit', this will also simplify the entire test suite and some of
lit's architecture.

Finally, the test suite runs 33% faster on Linux now. ;]
For my 16-hardware-thread (2x 4-core xeon e5520): 36s -> 24s

llvm-svn: 159525
2012-07-02 12:47:22 +00:00

139 lines
4.8 KiB
LLVM

; RUN: opt -S < %s -indvars | opt -analyze -iv-users | grep "%cmp = icmp slt i32" | grep "= {%\.ph,+,1}<%for.cond>"
; PR8079
; LoopSimplify should invalidate indvars when splitting out the
; inner loop.
@maxStat = external global i32
define i32 @test() nounwind {
entry:
br label %for.cond
for.cond: ; preds = %if.then5, %if.end, %entry
%cuts.1 = phi i32 [ 0, %entry ], [ %inc, %if.then5 ], [ %cuts.1, %if.end ]
%0 = phi i32 [ 0, %entry ], [ %add, %if.end ], [ %add, %if.then5 ]
%add = add i32 %0, 1
%cmp = icmp slt i32 %0, 1
%tmp1 = load i32* @maxStat, align 4
br i1 %cmp, label %for.body, label %for.cond14.preheader
for.cond14.preheader: ; preds = %for.cond
%cmp1726 = icmp sgt i32 %tmp1, 0
br i1 %cmp1726, label %for.body18, label %return
for.body: ; preds = %for.cond
%cmp2 = icmp sgt i32 %tmp1, 100
br i1 %cmp2, label %return, label %if.end
if.end: ; preds = %for.body
%cmp4 = icmp sgt i32 %tmp1, -1
br i1 %cmp4, label %if.then5, label %for.cond
if.then5: ; preds = %if.end
call void @foo() nounwind
%inc = add i32 %cuts.1, 1
br label %for.cond
for.body18: ; preds = %for.body18, %for.cond14.preheader
%i13.027 = phi i32 [ %1, %for.body18 ], [ 0, %for.cond14.preheader ]
call void @foo() nounwind
%1 = add nsw i32 %i13.027, 1
%tmp16 = load i32* @maxStat, align 4
%cmp17 = icmp slt i32 %1, %tmp16
br i1 %cmp17, label %for.body18, label %return
return: ; preds = %for.body18, %for.body, %for.cond14.preheader
ret i32 0
}
declare void @foo() nounwind
; Notify SCEV when removing an ExitingBlock.
; CHECK: @mergeExit
; CHECK: while.cond191:
; CHECK: br i1 %or.cond, label %while.body197
; CHECK-NOT: land.rhs:
; CHECK: ret
define void @mergeExit(i32 %MapAttrCount) nounwind uwtable ssp {
entry:
br i1 undef, label %if.then124, label %if.end126
if.then124: ; preds = %entry
unreachable
if.end126: ; preds = %entry
br i1 undef, label %while.body.lr.ph, label %if.end591
while.body.lr.ph: ; preds = %if.end126
br i1 undef, label %if.end140, label %if.then137
if.then137: ; preds = %while.body.lr.ph
unreachable
if.end140: ; preds = %while.body.lr.ph
br i1 undef, label %while.cond191.outer, label %if.then148
if.then148: ; preds = %if.end140
unreachable
while.cond191.outer: ; preds = %if.then205, %if.end140
br label %while.cond191
while.cond191: ; preds = %while.body197, %while.cond191.outer
%CppIndex.0 = phi i32 [ %inc, %while.body197 ], [ undef, %while.cond191.outer ]
br i1 undef, label %land.rhs, label %if.then216
land.rhs: ; preds = %while.cond191
%inc = add i32 %CppIndex.0, 1
%cmp196 = icmp ult i32 %inc, %MapAttrCount
br i1 %cmp196, label %while.body197, label %if.then216
while.body197: ; preds = %land.rhs
br i1 undef, label %if.then205, label %while.cond191
if.then205: ; preds = %while.body197
br label %while.cond191.outer
if.then216: ; preds = %land.rhs, %while.cond191
br i1 undef, label %if.else, label %if.then221
if.then221: ; preds = %if.then216
unreachable
if.else: ; preds = %if.then216
br i1 undef, label %if.then266, label %if.end340
if.then266: ; preds = %if.else
switch i32 undef, label %if.else329 [
i32 17, label %if.then285
i32 19, label %if.then285
i32 18, label %if.then285
i32 15, label %if.then285
]
if.then285: ; preds = %if.then266, %if.then266, %if.then266, %if.then266
br i1 undef, label %if.then317, label %if.else324
if.then317: ; preds = %if.then285
br label %if.end340
if.else324: ; preds = %if.then285
unreachable
if.else329: ; preds = %if.then266
unreachable
if.end340: ; preds = %if.then317, %if.else
unreachable
if.end591: ; preds = %if.end126
br i1 undef, label %cond.end, label %cond.false
cond.false: ; preds = %if.end591
unreachable
cond.end: ; preds = %if.end591
ret void
}