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IR printing improvement for loop passes - handle -print-module-scope

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Summary:
Adding support for -print-module-scope similar to how it is
being done for function passes. This option causes loop-pass printer
to emit a whole-module IR instead of just a loop itself.

Reviewers: sanjoy, silvas, weimingz

Reviewed By: sanjoy

Subscribers: apilipenko, skatkov, llvm-commits

Differential Revision: https://reviews.llvm.org/D40247

llvm-svn: 319566
This commit is contained in:
Fedor Sergeev 2017-12-01 18:33:58 +00:00
parent f7dfbc90e5
commit 351bfe9d50
2 changed files with 24 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
lib/Analysis/LoopInfo.cpp
View File

@ -731,6 +731,18 @@ PreservedAnalyses LoopPrinterPass::run(Function &F,
}
void llvm::printLoop(Loop &L, raw_ostream &OS, const std::string &Banner) {
if (forcePrintModuleIR()) {
// handling -print-module-scope
OS << Banner << " (loop: ";
L.getHeader()->printAsOperand(OS, false);
OS << ")\n";
// printing whole module
OS << *L.getHeader()->getModule();
return;
}
OS << Banner;
auto *PreHeader = L.getLoopPreheader();

14
test/Other/loop-pass-printer.ll
View File

@ -7,7 +7,9 @@
; RUN: opt < %s 2>&1 -disable-output \
; RUN: -loop-unroll -print-after=loop-unroll -filter-print-funcs=bar \
; RUN: | FileCheck %s -check-prefix=BAR
;
; RUN: opt < %s 2>&1 -disable-output \
; RUN: -loop-unroll -print-after=loop-unroll -filter-print-funcs=foo -print-module-scope \
; RUN: | FileCheck %s -check-prefix=FOO-MODULE
; DEL: IR Dump Before
; DEL-SAME: dead loops
@ -35,9 +37,17 @@
; BAR-NEXT: loop:
; BAR: ; Exit blocks
; BAR: end:
; BAR-NOT: IR Dump Before
; BAR-NOT: IR Dump
; BAR-NOT: ; Loop
; FOO-MODULE: IR Dump After
; FOO-MODULE-SAME: Unroll
; FOO-MODULE-SAME: loop: %loop
; FOO-MODULE-NEXT: ModuleID =
; FOO-MODULE: define void @foo
; FOO-MODULE: define void @bar
; FOO-MODULE-NOT: IR Dump
define void @foo(){
%idx = alloca i32, align 4
store i32 0, i32* %idx, align 4