From cebaae17187071331209e5ca907ce8826cf83c03 Mon Sep 17 00:00:00 2001
From: Zvi Rackover <zvi.rackover@intel.com>
Date: Mon, 29 May 2017 18:27:00 +0000
Subject: [PATCH] [X86] Replace undef value in flaky test

D33311 exposes the flakiness in this test. Replacing the undef placed by
bugpoint, makes it more interesting and robust.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304168 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/X86/setcc-lowering.ll | 65 ++++++++++++++++++++++++++++++++++++--
 1 file changed, 62 insertions(+), 3 deletions(-)

diff --git a/test/CodeGen/X86/setcc-lowering.ll b/test/CodeGen/X86/setcc-lowering.ll
index 391f1cc9fb4..1b8f8e7ae55 100644
--- a/test/CodeGen/X86/setcc-lowering.ll
+++ b/test/CodeGen/X86/setcc-lowering.ll
@@ -41,14 +41,67 @@ entry:
   ret <8 x i16> %3
 }
 
-define void @pr26232(i64 %a) {
+define void @pr26232(i64 %a, <16 x i1> %b) {
 ; AVX-LABEL: pr26232:
 ; AVX:       # BB#0: # %for_loop599.preheader
+; AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX-NEXT:    .p2align 4, 0x90
 ; AVX-NEXT:  .LBB1_1: # %for_loop599
 ; AVX-NEXT:    # =>This Inner Loop Header: Depth=1
+; AVX-NEXT:    xorl %eax, %eax
 ; AVX-NEXT:    cmpq $65536, %rdi # imm = 0x10000
-; AVX-NEXT:    setl -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    setl %al
+; AVX-NEXT:    vmovd %eax, %xmm2
+; AVX-NEXT:    vpshufb %xmm1, %xmm2, %xmm2
+; AVX-NEXT:    vpand %xmm0, %xmm2, %xmm2
+; AVX-NEXT:    vpextrb $15, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $14, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $13, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $12, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $11, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $10, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $9, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $8, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $7, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $6, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $5, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $4, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $3, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $2, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $1, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
+; AVX-NEXT:    vpextrb $0, %xmm2, %eax
+; AVX-NEXT:    andb $1, %al
+; AVX-NEXT:    movb %al, -{{[0-9]+}}(%rsp)
 ; AVX-NEXT:    cmpw $0, -{{[0-9]+}}(%rsp)
 ; AVX-NEXT:    jne .LBB1_1
 ; AVX-NEXT:  # BB#2: # %for_exit600
@@ -61,6 +114,9 @@ define void @pr26232(i64 %a) {
 ; KNL-32-NEXT:    .cfi_def_cfa_offset 8
 ; KNL-32-NEXT:  .Lcfi1:
 ; KNL-32-NEXT:    .cfi_offset %esi, -8
+; KNL-32-NEXT:    vpmovsxbd %xmm0, %zmm0
+; KNL-32-NEXT:    vpslld $31, %zmm0, %zmm0
+; KNL-32-NEXT:    vptestmd %zmm0, %zmm0, %k0
 ; KNL-32-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; KNL-32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
 ; KNL-32-NEXT:    movw $-1, %dx
@@ -72,6 +128,9 @@ define void @pr26232(i64 %a) {
 ; KNL-32-NEXT:    sbbl $0, %esi
 ; KNL-32-NEXT:    movl $0, %esi
 ; KNL-32-NEXT:    cmovlw %dx, %si
+; KNL-32-NEXT:    kmovw %esi, %k1
+; KNL-32-NEXT:    kandw %k0, %k1, %k1
+; KNL-32-NEXT:    kmovw %k1, %esi
 ; KNL-32-NEXT:    testw %si, %si
 ; KNL-32-NEXT:    jne .LBB1_1
 ; KNL-32-NEXT:  # BB#2: # %for_exit600
@@ -87,7 +146,7 @@ for_loop599:                                      ; preds = %for_loop599, %for_t
   %less_i_load605_ = icmp slt i64 %a, 65536
   %less_i_load605__broadcast_init = insertelement <16 x i1> undef, i1 %less_i_load605_, i32 0
   %less_i_load605__broadcast = shufflevector <16 x i1> %less_i_load605__broadcast_init, <16 x i1> undef, <16 x i32> zeroinitializer
-  %"oldMask&test607" = and <16 x i1> %less_i_load605__broadcast, undef
+  %"oldMask&test607" = and <16 x i1> %less_i_load605__broadcast, %b
   %intmask.i894 = bitcast <16 x i1> %"oldMask&test607" to i16
   %res.i895 = icmp eq i16 %intmask.i894, 0
   br i1 %res.i895, label %for_exit600, label %for_loop599
-- 
2.11.0