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[LoopFlatten] Disable IV widening 

Disable widening of the IV in LoopFlatten while I investigate an assertion
failures. Please note that the pass is also not yet enabled by default.
This commit is contained in:
Sjoerd Meijer 2020-11-16 22:30:52 +00:00
parent 5bc0bd05e6
commit fa5cb4b936
2 changed files with 2 additions and 2 deletions
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2
llvm/lib/Transforms/Scalar/LoopFlatten.cpp
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@ -66,7 +66,7 @@ static cl::opt<bool>
static cl::opt<bool>
WidenIV("loop-flatten-widen-iv", cl::Hidden,
cl::init(true),
cl::init(false),
cl::desc("Widen the loop induction variables, if possible, so "
"overflow checks won't reject flattening"));

2
llvm/test/Transforms/LoopFlatten/widen-iv.ll
View File

@ -1,5 +1,5 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -S -loop-flatten -verify-loop-info -verify-dom-info -verify-scev -verify | FileCheck %s --check-prefix=CHECK
; RUN: opt < %s -S -loop-flatten -loop-flatten-widen-iv=true -verify-loop-info -verify-dom-info -verify-scev -verify | FileCheck %s --check-prefix=CHECK
; RUN: opt < %s -S -loop-flatten -loop-flatten-widen-iv=false -verify-loop-info -verify-dom-info -verify-scev -verify | FileCheck %s --check-prefix=DONTWIDEN
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"