From 84e280ae42ef5e1493e9b1eb549813852258f4ab Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Sun, 30 Sep 2018 09:42:04 +0000
Subject: [PATCH] [X86] Regenerate MMX coalescing test

Exposes another extractelement(bitcast(scalartovector())) pattern

llvm-svn: 343403
---
 llvm/test/CodeGen/X86/mmx-coalescing.ll | 38 ++++++++++++++++++++++-----------
 1 file changed, 26 insertions(+), 12 deletions(-)

diff --git a/llvm/test/CodeGen/X86/mmx-coalescing.ll b/llvm/test/CodeGen/X86/mmx-coalescing.ll
index c23e732..8f9204a 100644
--- a/llvm/test/CodeGen/X86/mmx-coalescing.ll
+++ b/llvm/test/CodeGen/X86/mmx-coalescing.ll
@@ -1,3 +1,4 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+mmx,+sse2 | FileCheck %s
 
 %SA = type <{ %union.anon, i32, [4 x i8], i8*, i8*, i8*, i32, [4 x i8] }>
@@ -6,13 +7,32 @@
 ; Check that extra movd (copy) instructions aren't generated.
 
 define i32 @test(%SA* %pSA, i16* %A, i32 %B, i32 %C, i32 %D, i8* %E) {
+; CHECK-LABEL: test:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    pshufw $238, (%rdi), %mm0 # mm0 = mem[2,3,2,3]
+; CHECK-NEXT:    movd %mm0, %eax
+; CHECK-NEXT:    testl %eax, %eax
+; CHECK-NEXT:    je .LBB0_1
+; CHECK-NEXT:  # %bb.2: # %if.B
+; CHECK-NEXT:    pshufw $238, %mm0, %mm0 # mm0 = mm0[2,3,2,3]
+; CHECK-NEXT:    movq %mm0, %rax
+; CHECK-NEXT:    jmp .LBB0_3
+; CHECK-NEXT:  .LBB0_1: # %if.A
+; CHECK-NEXT:    movd %edx, %mm1
+; CHECK-NEXT:    psllq %mm1, %mm0
+; CHECK-NEXT:    movq %mm0, %rax
+; CHECK-NEXT:    testq %rax, %rax
+; CHECK-NEXT:    jne .LBB0_4
+; CHECK-NEXT:  .LBB0_3: # %if.C
+; CHECK-NEXT:    movq %rax, %xmm0
+; CHECK-NEXT:    movd %xmm0, %eax
+; CHECK-NEXT:    testl %eax, %eax
+; CHECK-NEXT:    je .LBB0_1
+; CHECK-NEXT:  .LBB0_4: # %merge
+; CHECK-NEXT:    pshufw $238, %mm0, %mm0 # mm0 = mm0[2,3,2,3]
+; CHECK-NEXT:    movd %mm0, %eax
+; CHECK-NEXT:    retq
 entry:
-; CHECK-LABEL: test
-; CHECK:       # %bb.0:
-; CHECK-NEXT:  pshufw
-; CHECK-NEXT:  movd
-; CHECK-NOT:  movd
-; CHECK-NEXT:  testl
   %shl = shl i32 1, %B
   %shl1 = shl i32 %C, %B
   %shl2 = shl i32 1, %D
@@ -36,9 +56,6 @@ entry:
   br i1 %cmp, label %if.A, label %if.B
 
 if.A:
-; CHECK: %if.A
-; CHECK-NEXT:  movd
-; CHECK-NEXT:  psllq
   %pa = phi <1 x i64> [ %v8, %entry ], [ %vx, %if.C ]
   %v17 = extractelement <1 x i64> %pa, i32 0
   %v18 = bitcast i64 %v17 to x86_mmx
@@ -64,9 +81,6 @@ if.C:
   br i1 %cmp2, label %if.A, label %merge
 
 merge:
-; CHECK: %merge
-; CHECK-NOT:  movd
-; CHECK-NEXT:  pshufw
   %vy = phi <1 x i64> [ %v21, %if.A ], [ %vx, %if.C ]
   %v130 = bitcast <1 x i64> %vy to <4 x i16>
   %v131 = bitcast <4 x i16> %v130 to x86_mmx
-- 
2.7.4