shylie/llvm-project
1
0
Fork 0
Code Issues Pull Requests Actions 6 Packages Projects Releases Wiki Activity

[PowerPC][MachinePipeliner][NFC] Add a testcase for Phi bug.

Browse Source 
llvm-svn: 365427
This commit is contained in:
Jinsong Ji 2019-07-09 02:27:29 +00:00
parent 947bfe73fc
commit 18301fa82b
1 changed files with 34 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
llvm/test/CodeGen/PowerPC/sms-phi.ll Normal file
View File

@ -0,0 +1,34 @@
; REQUIRES: asserts
; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs\
; RUN: -mcpu=pwr9 --ppc-enable-pipeliner -debug-only=pipeliner 2>&1 \
; RUN: >/dev/null | FileCheck %s
define dso_local void @sha512() #0 {
;CHECK: prolog:
;CHECK: %16:g8rc = ADD8 %21:g8rc, %20:g8rc
;CHECK: epilog:
;CHECK: %23:g8rc_and_g8rc_nox0 = PHI %5:g8rc_and_g8rc_nox0, %bb.3, %18:g8rc_and_g8rc_nox0, %bb.4
;CHECK-NEXT: %24:g8rc = PHI %6:g8rc, %bb.3, %16:g8rc, %bb.4
;CHECK-NEXT: %25:g8rc = PHI %6:g8rc, %bb.3, %16:g8rc, %bb.4
br label %1
1: ; preds = %1, %0
%2 = phi i64 [ 0, %0 ], [ %12, %1 ]
%3 = phi i64 [ undef, %0 ], [ %11, %1 ]
%4 = phi i64 [ undef, %0 ], [ %3, %1 ]
%5 = getelementptr inbounds [80 x i64], [80 x i64]* null, i64 0, i64 %2
%6 = load i64, i64* %5, align 8
%7 = add i64 0, %6
%8 = and i64 %3, %4
%9 = or i64 0, %8
%10 = add i64 0, %9
%11 = add i64 %10, %7
%12 = add nuw nsw i64 %2, 1
%13 = icmp eq i64 %12, 80
br i1 %13, label %14, label %1
14: ; preds = %1
%15 = add i64 %4, 0
store i64 %15, i64* undef, align 8
ret void
}