5c02808131
The `opt -analyze` option only works with the legacy pass manager and might be removed in the future, as explained in llvm.org/PR53733. This patch introduced -polly-print-* passes that print what the pass would print with the `-analyze` option and replaces all uses of `-analyze` in the regression tests. There are two exceptions: `CodeGen\single_loop_param_less_equal.ll` and `CodeGen\loop_with_condition_nested.ll` use `-analyze on the `-loops` pass which is not part of Polly. Reviewed By: aeubanks Differential Revision: https://reviews.llvm.org/D120782
51 lines
1.4 KiB
LLVM
51 lines
1.4 KiB
LLVM
; RUN: opt %loadPolly -polly-print-optree -disable-output < %s | FileCheck %s -match-full-lines
|
|
;
|
|
; Do not try to forward %i.trunc, it is not synthesizable in %body.
|
|
;
|
|
define void @func(i32 %n, i32* noalias nonnull %A) {
|
|
entry:
|
|
br label %for
|
|
|
|
for:
|
|
%j = phi i32 [0, %entry], [%j.inc, %inc]
|
|
%j.cmp = icmp slt i32 %j, %n
|
|
%zero = sext i32 0 to i64
|
|
br i1 %j.cmp, label %inner.for, label %exit
|
|
|
|
|
|
; This loop has some unusual properties:
|
|
; * It has a known iteration count (8), therefore SCoP-compatible.
|
|
; * %i.trunc is synthesizable within the loop ({1,+,1}<%while.body>).
|
|
; * %i.trunc is not synthesizable outside of the loop, because its value is
|
|
; unknown when exiting.
|
|
; (should be 8, but ScalarEvolution currently seems unable to derive that)
|
|
;
|
|
; ScalarEvolution currently seems to not able to handle the %zero.
|
|
; If it becomes more intelligent, there might be other such loop constructs.
|
|
inner.for:
|
|
%i = phi i64 [%zero, %for], [%i.inc, %inner.for]
|
|
%i.inc = add nuw nsw i64 %i, 1
|
|
%i.trunc = trunc i64 %i.inc to i32
|
|
%i.and = and i32 %i.trunc, 7
|
|
%inner.cond = icmp eq i32 %i.and, 0
|
|
br i1 %inner.cond, label %body, label %inner.for
|
|
|
|
body:
|
|
store i32 %i.trunc, i32* %A
|
|
br label %inc
|
|
|
|
|
|
inc:
|
|
%j.inc = add nuw nsw i32 %j, 1
|
|
br label %for
|
|
|
|
exit:
|
|
br label %return
|
|
|
|
return:
|
|
ret void
|
|
}
|
|
|
|
|
|
; CHECK: ForwardOpTree executed, but did not modify anything
|