Eliminate the stack slot used to save the global base register.

 
The long branch pass (fixed in r160601) no longer uses the global base register
to compute addresses of branch destinations, so it is not necessary to reserve
a slot on the stack.

llvm-svn: 160703

4 files changed, 61 insertions, 61 deletions

diff --git a/llvm/test/CodeGen/Mips/i64arg.ll b/llvm/test/CodeGen/Mips/i64arg.ll
index e33021f8808..8b1f71b69f1 100644
--- a/llvm/test/CodeGen/Mips/i64arg.ll
+++ b/llvm/test/CodeGen/Mips/i64arg.ll
@@ -10,8 +10,8 @@ entry:
 ; CHECK: jalr
   tail call void @ff1(i32 %i, i64 1085102592623924856) nounwind
 ; CHECK: lw $25, %call16(ff2)
-; CHECK: lw $[[R2:[0-9]+]], 88($sp)
-; CHECK: lw $[[R3:[0-9]+]], 92($sp)
+; CHECK: lw $[[R2:[0-9]+]], 80($sp)
+; CHECK: lw $[[R3:[0-9]+]], 84($sp)
 ; CHECK: addu $4, $zero, $[[R2]]
 ; CHECK: addu $5, $zero, $[[R3]]
 ; CHECK: jalr $25
diff --git a/llvm/test/CodeGen/Mips/largeimmprinting.ll b/llvm/test/CodeGen/Mips/largeimmprinting.ll
index c81cc764b4b..0272dea5a76 100644
--- a/llvm/test/CodeGen/Mips/largeimmprinting.ll
+++ b/llvm/test/CodeGen/Mips/largeimmprinting.ll
@@ -7,7 +7,7 @@
 define void @f() nounwind {
 entry:
 ; CHECK:  lui $at, 65534
-; CHECK:  addiu $at, $at, -24
+; CHECK:  addiu $at, $at, -16
 ; CHECK:  addu  $sp, $sp, $at
 
   %agg.tmp = alloca %struct.S1, align 1
diff --git a/llvm/test/CodeGen/Mips/o32_cc_byval.ll b/llvm/test/CodeGen/Mips/o32_cc_byval.ll
index d5eac994c07..eac0d80c1c5 100644
--- a/llvm/test/CodeGen/Mips/o32_cc_byval.ll
+++ b/llvm/test/CodeGen/Mips/o32_cc_byval.ll
@@ -43,16 +43,16 @@ declare void @callee3(float, %struct.S3* byval, %struct.S1* byval)
 
 define void @f2(float %f, %struct.S1* nocapture byval %s1) nounwind {
 entry:
-; CHECK: addiu $sp, $sp, -56
-; CHECK: sw  $7, 68($sp)
-; CHECK: sw  $6, 64($sp)
-; CHECK: lw  $4, 88($sp)
-; CHECK: ldc1 $f[[F0:[0-9]+]], 80($sp)
-; CHECK: lw  $[[R3:[0-9]+]], 72($sp)
-; CHECK: lw  $[[R4:[0-9]+]], 76($sp)
-; CHECK: lw  $[[R2:[0-9]+]], 68($sp)
-; CHECK: lh  $[[R1:[0-9]+]], 66($sp)
-; CHECK: lb  $[[R0:[0-9]+]], 64($sp)
+; CHECK: addiu $sp, $sp, -48
+; CHECK: sw  $7, 60($sp)
+; CHECK: sw  $6, 56($sp)
+; CHECK: lw  $4, 80($sp)
+; CHECK: ldc1 $f[[F0:[0-9]+]], 72($sp)
+; CHECK: lw  $[[R3:[0-9]+]], 64($sp)
+; CHECK: lw  $[[R4:[0-9]+]], 68($sp)
+; CHECK: lw  $[[R2:[0-9]+]], 60($sp)
+; CHECK: lh  $[[R1:[0-9]+]], 58($sp)
+; CHECK: lb  $[[R0:[0-9]+]], 56($sp)
 ; CHECK: sw  $[[R0]], 32($sp)
 ; CHECK: sw  $[[R1]], 28($sp)
 ; CHECK: sw  $[[R2]], 24($sp)
@@ -80,13 +80,13 @@ declare void @callee4(i32, double, i64, i32, i16 signext, i8 signext, float)
 
 define void @f3(%struct.S2* nocapture byval %s2) nounwind {
 entry:
-; CHECK: addiu $sp, $sp, -56
-; CHECK: sw  $7, 68($sp)
-; CHECK: sw  $6, 64($sp)
-; CHECK: sw  $5, 60($sp)
-; CHECK: sw  $4, 56($sp)
-; CHECK: lw  $4, 56($sp)
-; CHECK: lw  $[[R0:[0-9]+]], 68($sp)
+; CHECK: addiu $sp, $sp, -48
+; CHECK: sw  $7, 60($sp)
+; CHECK: sw  $6, 56($sp)
+; CHECK: sw  $5, 52($sp)
+; CHECK: sw  $4, 48($sp)
+; CHECK: lw  $4, 48($sp)
+; CHECK: lw  $[[R0:[0-9]+]], 60($sp)
 ; CHECK: sw  $[[R0]], 24($sp)
 
   %arrayidx = getelementptr inbounds %struct.S2* %s2, i32 0, i32 0, i32 0
@@ -99,13 +99,13 @@ entry:
 
 define void @f4(float %f, %struct.S3* nocapture byval %s3, %struct.S1* nocapture byval %s1) nounwind {
 entry:
-; CHECK: addiu $sp, $sp, -56
-; CHECK: sw  $7, 68($sp)
-; CHECK: sw  $6, 64($sp)
-; CHECK: sw  $5, 60($sp)
-; CHECK: lw  $4, 68($sp)
-; CHECK: lw  $[[R1:[0-9]+]], 88($sp)
-; CHECK: lb  $[[R0:[0-9]+]], 60($sp)
+; CHECK: addiu $sp, $sp, -48
+; CHECK: sw  $7, 60($sp)
+; CHECK: sw  $6, 56($sp)
+; CHECK: sw  $5, 52($sp)
+; CHECK: lw  $4, 60($sp)
+; CHECK: lw  $[[R1:[0-9]+]], 80($sp)
+; CHECK: lb  $[[R0:[0-9]+]], 52($sp)
 ; CHECK: sw  $[[R0]], 32($sp)
 ; CHECK: sw  $[[R1]], 24($sp)
 
diff --git a/llvm/test/CodeGen/Mips/o32_cc_vararg.ll b/llvm/test/CodeGen/Mips/o32_cc_vararg.ll
index 49d614c820e..4a3d9ab8375 100644
--- a/llvm/test/CodeGen/Mips/o32_cc_vararg.ll
+++ b/llvm/test/CodeGen/Mips/o32_cc_vararg.ll
@@ -29,11 +29,11 @@ entry:
   ret i32 %tmp
 
 ; CHECK: va1:
-; CHECK: addiu   $sp, $sp, -24
-; CHECK: sw      $7, 36($sp)
-; CHECK: sw      $6, 32($sp)
-; CHECK: sw      $5, 28($sp)
-; CHECK: lw      $2, 28($sp)
+; CHECK: addiu   $sp, $sp, -16
+; CHECK: sw      $7, 28($sp)
+; CHECK: sw      $6, 24($sp)
+; CHECK: sw      $5, 20($sp)
+; CHECK: lw      $2, 20($sp)
 }
 
 ; check whether the variable double argument will be accessed from the 8-byte
@@ -55,11 +55,11 @@ entry:
   ret double %tmp
 
 ; CHECK: va2:
-; CHECK: addiu   $sp, $sp, -24
-; CHECK: sw      $7, 36($sp)
-; CHECK: sw      $6, 32($sp)
-; CHECK: sw      $5, 28($sp)
-; CHECK: addiu   $[[R0:[0-9]+]], $sp, 28
+; CHECK: addiu   $sp, $sp, -16
+; CHECK: sw      $7, 28($sp)
+; CHECK: sw      $6, 24($sp)
+; CHECK: sw      $5, 20($sp)
+; CHECK: addiu   $[[R0:[0-9]+]], $sp, 20
 ; CHECK: addiu   $[[R1:[0-9]+]], $[[R0]], 7
 ; CHECK: addiu   $[[R2:[0-9]+]], $zero, -8
 ; CHECK: and     $[[R3:[0-9]+]], $[[R1]], $[[R2]]
@@ -83,10 +83,10 @@ entry:
   ret i32 %tmp
 
 ; CHECK: va3:
-; CHECK: addiu   $sp, $sp, -24
-; CHECK: sw      $7, 36($sp)
-; CHECK: sw      $6, 32($sp)
-; CHECK: lw      $2, 32($sp)
+; CHECK: addiu   $sp, $sp, -16
+; CHECK: sw      $7, 28($sp)
+; CHECK: sw      $6, 24($sp)
+; CHECK: lw      $2, 24($sp)
 }
 
 ; double
@@ -106,11 +106,11 @@ entry:
   ret double %tmp
 
 ; CHECK: va4:
-; CHECK: addiu   $sp, $sp, -32
-; CHECK: sw      $7, 44($sp)
-; CHECK: sw      $6, 40($sp)
-; CHECK: addiu   ${{[0-9]+}}, $sp, 40
-; CHECK: ldc1    $f0, 40($sp)
+; CHECK: addiu   $sp, $sp, -24
+; CHECK: sw      $7, 36($sp)
+; CHECK: sw      $6, 32($sp)
+; CHECK: addiu   ${{[0-9]+}}, $sp, 32
+; CHECK: ldc1    $f0, 32($sp)
 }
 
 ; int
@@ -134,9 +134,9 @@ entry:
   ret i32 %tmp
 
 ; CHECK: va5:
-; CHECK: addiu   $sp, $sp, -32
-; CHECK: sw      $7, 44($sp)
-; CHECK: lw      $2, 44($sp)
+; CHECK: addiu   $sp, $sp, -24
+; CHECK: sw      $7, 36($sp)
+; CHECK: lw      $2, 36($sp)
 }
 
 ; double
@@ -160,9 +160,9 @@ entry:
   ret double %tmp
 
 ; CHECK: va6:
-; CHECK: addiu   $sp, $sp, -32
-; CHECK: sw      $7, 44($sp)
-; CHECK: addiu   $[[R0:[0-9]+]], $sp, 44
+; CHECK: addiu   $sp, $sp, -24
+; CHECK: sw      $7, 36($sp)
+; CHECK: addiu   $[[R0:[0-9]+]], $sp, 36
 ; CHECK: addiu   $[[R1:[0-9]+]], $[[R0]], 7
 ; CHECK: addiu   $[[R2:[0-9]+]], $zero, -8
 ; CHECK: and     $[[R3:[0-9]+]], $[[R1]], $[[R2]]
@@ -188,8 +188,8 @@ entry:
   ret i32 %tmp
 
 ; CHECK: va7:
-; CHECK: addiu   $sp, $sp, -32
-; CHECK: lw      $2, 48($sp)
+; CHECK: addiu   $sp, $sp, -24
+; CHECK: lw      $2, 40($sp)
 }
 
 ; double
@@ -211,9 +211,9 @@ entry:
   ret double %tmp
 
 ; CHECK: va8:
-; CHECK: addiu   $sp, $sp, -40
-; CHECK: addiu   ${{[0-9]+}}, $sp, 56
-; CHECK: ldc1    $f0, 56($sp)
+; CHECK: addiu   $sp, $sp, -32
+; CHECK: addiu   ${{[0-9]+}}, $sp, 48
+; CHECK: ldc1    $f0, 48($sp)
 }
 
 ; int
@@ -237,8 +237,8 @@ entry:
   ret i32 %tmp
 
 ; CHECK: va9:
-; CHECK: addiu   $sp, $sp, -40
-; CHECK: lw      $2, 60($sp)
+; CHECK: addiu   $sp, $sp, -32
+; CHECK: lw      $2, 52($sp)
 }
 
 ; double
@@ -262,8 +262,8 @@ entry:
   ret double %tmp
 
 ; CHECK: va10:
-; CHECK: addiu   $sp, $sp, -40
-; CHECK: addiu   $[[R0:[0-9]+]], $sp, 60
+; CHECK: addiu   $sp, $sp, -32
+; CHECK: addiu   $[[R0:[0-9]+]], $sp, 52
 ; CHECK: addiu   $[[R1:[0-9]+]], $[[R0]], 7
 ; CHECK: addiu   $[[R2:[0-9]+]], $zero, -8
 ; CHECK: and     $[[R3:[0-9]+]], $[[R1]], $[[R2]]