From c39b18b306c7681cb155127096a56afbea24a08e Mon Sep 17 00:00:00 2001
From: Matheus Almeida <matheus.almeida@imgtec.com>
Date: Wed, 18 Jun 2014 14:49:56 +0000
Subject: [mips] Fix expansion of memory operation if destination register is
 not a GPR.

Summary:
The assembler tries to reuse the destination register for memory operations whenever
it can but it's not possible to do so if the destination register is not a GPR.

Example:
  ldc1 $f0, sym
should expand to:
  lui $at, %hi(sym)
  ldc1 $f0, %lo(sym)($at)

It's entirely wrong to expand to:
  lui $f0, %hi(sym)
  ldc1 $f0, %lo(sym)($f0)

Reviewers: dsanders

Reviewed By: dsanders

Differential Revision: http://reviews.llvm.org/D4173

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211169 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/MC/Mips/mips-expansions.s | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'test')

diff --git a/test/MC/Mips/mips-expansions.s b/test/MC/Mips/mips-expansions.s
index 9925609ecd..f0a04a5a25 100644
--- a/test/MC/Mips/mips-expansions.s
+++ b/test/MC/Mips/mips-expansions.s
@@ -34,6 +34,11 @@
 # CHECK: addu    $1, $1, $9              # encoding: [0x21,0x08,0x29,0x00]
 # CHECK: sw      $10, 57920($1)          # encoding: [0x40,0xe2,0x2a,0xac]
 
+# CHECK: lui     $1, %hi(symbol)
+# CHECK: ldc1    $f0, %lo(symbol)($1)
+# CHECK: lui     $1, %hi(symbol)
+# CHECK: sdc1    $f0, %lo(symbol)($1)
+
     li $5,123
     li $6,-2345
     li $7,65538
@@ -51,3 +56,6 @@
 
     lw  $t2, 655483($a0)
     sw  $t2, 123456($t1)
+
+    ldc1 $f0, symbol
+    sdc1 $f0, symbol
-- 
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