https://llvm.org/bugs/show_bug.cgi?id=26967
Bug ID: 26967
Summary: fusion opportunity
Product: Polly
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: Optimizer
Assignee: polly-...@googlegroups.com
Reporter: zi...@codeaurora.org
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Created attachment 16046
--> https://llvm.org/bugs/attachment.cgi?id=16046&action=edit
opt -polly -polly-opt-isl -O3 -debug -polly-process-unprofitable
-polly-opt-fusion=max foo.ll 2> Ofoo -polly-opt-simplify-deps=no
1) can we make Isl hoist preheader outside loop?
if (n >= 1) {
Stmt_for_body_lr_ph();
Stmt_for_body17_lr_ph();
Stmt_for_body5_lr_ph();
}
for (int c0 = 0; c0 < n; c0 += 1) {
Stmt_for_body(c0);
Stmt_for_body5(c0);
Stmt_for_body17(c0);
if (c0 == 0)
Stmt_for_body29_lr_ph();
Stmt_for_body29(c0);
}
}
2) Loop fusion occurs only if -polly-opt-simplify-deps=no? why?
--
You are receiving this mail because:
You are on the CC list for the bug.
_______________________________________________
llvm-bugs mailing list
llvm-bugs@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
