1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-31 20:51:52 +01:00
Arthur Eubanks 54c69d097e [NewPM][LoopUnswitch] Pin loop-unswitch to legacy PM or use simple-loop-unswitch
As mentioned in
http://lists.llvm.org/pipermail/llvm-dev/2020-July/143395.html,
loop-unswitch has not been ported to the NPM. Instead people are using
simple-loop-unswitch.

Pin all tests in Transforms/LoopUnswitch to legacy PM and replace all
other uses of loop-unswitch with simple-loop-unswitch.

One test that didn't fit into the above was
2014-06-21-congruent-constant.ll which seems to only pass with
loop-unswitch. That is also pinned to legacy PM.

Now all tests containing "-loop-unswitch" anywhere in the test succeed with
NPM turned on by default.

Reviewed By: ychen

Differential Revision: https://reviews.llvm.org/D85360
2020-08-06 10:56:00 -07:00

27 lines
1015 B
LLVM

; RUN: opt < %s -loop-unswitch -enable-new-pm=0 -disable-output
; RUN: opt < %s -loop-unswitch -enable-new-pm=0 -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output
; PR12887
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
@a = common global i32 0, align 4
@c = common global i32 0, align 4
@b = common global i32 0, align 4
define void @func() noreturn nounwind uwtable {
entry:
%0 = load i32, i32* @a, align 4
%tobool = icmp eq i32 %0, 0
%1 = load i32, i32* @b, align 4
br label %while.body
while.body: ; preds = %while.body, %entry
%d.0 = phi i8 [ undef, %entry ], [ %conv2, %while.body ]
%conv = sext i8 %d.0 to i32
%cond = select i1 %tobool, i32 0, i32 %conv
%conv11 = zext i8 %d.0 to i32
%add = add i32 %1, %conv11
%conv2 = trunc i32 %add to i8
br label %while.body
}