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[PowerPC][NFC]Add a test for MachinePipeliner bug

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llvm-svn: 364350
This commit is contained in:
Jinsong Ji 2019-06-25 20:56:17 +00:00
parent 842c68a92a
commit 4eba06a4b5
1 changed files with 36 additions and 0 deletions
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test/CodeGen/PowerPC/sms-iterator.ll Normal file
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; 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
%0 = type { i32, [16 x double] }
; CHECK: MII = 7 MAX_II = 17
define dso_local fastcc void @_ZN3povL9polysolveEiPdS0_() unnamed_addr #0 {
br label %1
1: ; preds = %1, %0
br i1 undef, label %2, label %1
2: ; preds = %1
br i1 undef, label %14, label %3
3: ; preds = %3, %2
%4 = phi i64 [ %7, %3 ], [ undef, %2 ]
%5 = phi double [ %11, %3 ], [ undef, %2 ]
%6 = phi i64 [ %12, %3 ], [ undef, %2 ]
%7 = add nsw i64 %4, -1
%8 = fmul fast double %5, 1.000000e+07
%9 = getelementptr inbounds %0, %0* null, i64 1, i32 1, i64 %7
%10 = load double, double* %9, align 8
%11 = fadd fast double %10, %8
%12 = add i64 %6, -1
%13 = icmp eq i64 %12, 0
br i1 %13, label %14, label %3
14: ; preds = %3, %2
%15 = phi double [ undef, %2 ], [ %11, %3 ]
%16 = fmul fast double %15, undef
ret void
}