Mips: Don't create copy of nothing
This was creating a copy of the register the pseudo itself was
def'ing, leaving a copy of an undefined register. I'm not sure how
the verifier is not catching this, but this avoids asserting in a
future change to RegAllocFast
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@356716 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index 95c0103..21c7cf2 100644
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -1750,12 +1750,10 @@
// after fast register allocation, the spills will end up outside of the
// blocks that their values are defined in, causing livein errors.
- unsigned DestCopy = MRI.createVirtualRegister(MRI.getRegClass(Dest));
unsigned PtrCopy = MRI.createVirtualRegister(MRI.getRegClass(Ptr));
unsigned OldValCopy = MRI.createVirtualRegister(MRI.getRegClass(OldVal));
unsigned NewValCopy = MRI.createVirtualRegister(MRI.getRegClass(NewVal));
- BuildMI(*BB, II, DL, TII->get(Mips::COPY), DestCopy).addReg(Dest);
BuildMI(*BB, II, DL, TII->get(Mips::COPY), PtrCopy).addReg(Ptr);
BuildMI(*BB, II, DL, TII->get(Mips::COPY), OldValCopy).addReg(OldVal);
BuildMI(*BB, II, DL, TII->get(Mips::COPY), NewValCopy).addReg(NewVal);
diff --git a/test/CodeGen/Mips/atomic.ll b/test/CodeGen/Mips/atomic.ll
index b0207ff..aa2f9c1 100644
--- a/test/CodeGen/Mips/atomic.ll
+++ b/test/CodeGen/Mips/atomic.ll
@@ -1935,32 +1935,29 @@
; MIPS32O0: # %bb.0: # %entry
; MIPS32O0-NEXT: lui $2, %hi(_gp_disp)
; MIPS32O0-NEXT: addiu $2, $2, %lo(_gp_disp)
-; MIPS32O0-NEXT: addiu $sp, $sp, -16
+; MIPS32O0-NEXT: addiu $sp, $sp, -8
; MIPS32O0-NEXT: addu $1, $2, $25
-; MIPS32O0-NEXT: sw $5, 12($sp)
-; MIPS32O0-NEXT: lw $2, 12($sp)
+; MIPS32O0-NEXT: sw $5, 4($sp)
+; MIPS32O0-NEXT: lw $2, 4($sp)
; MIPS32O0-NEXT: lw $1, %got(x)($1)
-; MIPS32O0-NEXT: lw $3, 8($sp) # 4-byte Folded Reload
-; MIPS32O0-NEXT: move $5, $4
+; MIPS32O0-NEXT: move $3, $4
; MIPS32O0-NEXT: $BB7_1: # %entry
; MIPS32O0-NEXT: # =>This Inner Loop Header: Depth=1
-; MIPS32O0-NEXT: ll $6, 0($1)
-; MIPS32O0-NEXT: bne $6, $5, $BB7_3
+; MIPS32O0-NEXT: ll $5, 0($1)
+; MIPS32O0-NEXT: bne $5, $3, $BB7_3
; MIPS32O0-NEXT: nop
; MIPS32O0-NEXT: # %bb.2: # %entry
; MIPS32O0-NEXT: # in Loop: Header=BB7_1 Depth=1
-; MIPS32O0-NEXT: move $7, $2
-; MIPS32O0-NEXT: sc $7, 0($1)
-; MIPS32O0-NEXT: beqz $7, $BB7_1
+; MIPS32O0-NEXT: move $6, $2
+; MIPS32O0-NEXT: sc $6, 0($1)
+; MIPS32O0-NEXT: beqz $6, $BB7_1
; MIPS32O0-NEXT: nop
; MIPS32O0-NEXT: $BB7_3: # %entry
-; MIPS32O0-NEXT: xor $1, $6, $4
+; MIPS32O0-NEXT: xor $1, $5, $4
; MIPS32O0-NEXT: sltiu $1, $1, 1
-; MIPS32O0-NEXT: move $2, $6
-; MIPS32O0-NEXT: sw $6, 8($sp) # 4-byte Folded Spill
-; MIPS32O0-NEXT: sw $3, 4($sp) # 4-byte Folded Spill
+; MIPS32O0-NEXT: move $2, $5
; MIPS32O0-NEXT: sw $1, 0($sp) # 4-byte Folded Spill
-; MIPS32O0-NEXT: addiu $sp, $sp, 16
+; MIPS32O0-NEXT: addiu $sp, $sp, 8
; MIPS32O0-NEXT: jr $ra
; MIPS32O0-NEXT: nop
;
@@ -2013,30 +2010,27 @@
; MIPS32R6O0: # %bb.0: # %entry
; MIPS32R6O0-NEXT: lui $2, %hi(_gp_disp)
; MIPS32R6O0-NEXT: addiu $2, $2, %lo(_gp_disp)
-; MIPS32R6O0-NEXT: addiu $sp, $sp, -24
+; MIPS32R6O0-NEXT: addiu $sp, $sp, -16
; MIPS32R6O0-NEXT: addu $1, $2, $25
; MIPS32R6O0-NEXT: move $2, $5
; MIPS32R6O0-NEXT: move $3, $4
-; MIPS32R6O0-NEXT: sw $5, 20($sp)
-; MIPS32R6O0-NEXT: lw $5, 20($sp)
+; MIPS32R6O0-NEXT: sw $5, 12($sp)
+; MIPS32R6O0-NEXT: lw $5, 12($sp)
; MIPS32R6O0-NEXT: lw $1, %got(x)($1)
-; MIPS32R6O0-NEXT: lw $6, 16($sp) # 4-byte Folded Reload
; MIPS32R6O0-NEXT: $BB7_1: # %entry
; MIPS32R6O0-NEXT: # =>This Inner Loop Header: Depth=1
-; MIPS32R6O0-NEXT: ll $7, 0($1)
-; MIPS32R6O0-NEXT: bnec $7, $4, $BB7_3
+; MIPS32R6O0-NEXT: ll $6, 0($1)
+; MIPS32R6O0-NEXT: bnec $6, $4, $BB7_3
; MIPS32R6O0-NEXT: # %bb.2: # %entry
; MIPS32R6O0-NEXT: # in Loop: Header=BB7_1 Depth=1
-; MIPS32R6O0-NEXT: move $8, $5
-; MIPS32R6O0-NEXT: sc $8, 0($1)
-; MIPS32R6O0-NEXT: beqzc $8, $BB7_1
+; MIPS32R6O0-NEXT: move $7, $5
+; MIPS32R6O0-NEXT: sc $7, 0($1)
+; MIPS32R6O0-NEXT: beqzc $7, $BB7_1
; MIPS32R6O0-NEXT: $BB7_3: # %entry
-; MIPS32R6O0-NEXT: sw $2, 12($sp) # 4-byte Folded Spill
-; MIPS32R6O0-NEXT: move $2, $7
-; MIPS32R6O0-NEXT: sw $3, 8($sp) # 4-byte Folded Spill
-; MIPS32R6O0-NEXT: sw $7, 16($sp) # 4-byte Folded Spill
-; MIPS32R6O0-NEXT: sw $6, 4($sp) # 4-byte Folded Spill
-; MIPS32R6O0-NEXT: addiu $sp, $sp, 24
+; MIPS32R6O0-NEXT: sw $2, 8($sp) # 4-byte Folded Spill
+; MIPS32R6O0-NEXT: move $2, $6
+; MIPS32R6O0-NEXT: sw $3, 4($sp) # 4-byte Folded Spill
+; MIPS32R6O0-NEXT: addiu $sp, $sp, 16
; MIPS32R6O0-NEXT: jrc $ra
;
; MIPS4-LABEL: AtomicCmpSwap32:
@@ -2141,20 +2135,17 @@
; MIPS64R6O0-NEXT: sw $3, 12($sp)
; MIPS64R6O0-NEXT: lw $3, 12($sp)
; MIPS64R6O0-NEXT: ld $1, %got_disp(x)($1)
-; MIPS64R6O0-NEXT: lw $6, 8($sp) # 4-byte Folded Reload
; MIPS64R6O0-NEXT: .LBB7_1: # %entry
; MIPS64R6O0-NEXT: # =>This Inner Loop Header: Depth=1
-; MIPS64R6O0-NEXT: ll $7, 0($1)
-; MIPS64R6O0-NEXT: bnec $7, $2, .LBB7_3
+; MIPS64R6O0-NEXT: ll $6, 0($1)
+; MIPS64R6O0-NEXT: bnec $6, $2, .LBB7_3
; MIPS64R6O0-NEXT: # %bb.2: # %entry
; MIPS64R6O0-NEXT: # in Loop: Header=BB7_1 Depth=1
-; MIPS64R6O0-NEXT: move $8, $3
-; MIPS64R6O0-NEXT: sc $8, 0($1)
-; MIPS64R6O0-NEXT: beqzc $8, .LBB7_1
+; MIPS64R6O0-NEXT: move $7, $3
+; MIPS64R6O0-NEXT: sc $7, 0($1)
+; MIPS64R6O0-NEXT: beqzc $7, .LBB7_1
; MIPS64R6O0-NEXT: .LBB7_3: # %entry
-; MIPS64R6O0-NEXT: move $2, $7
-; MIPS64R6O0-NEXT: sw $7, 8($sp) # 4-byte Folded Spill
-; MIPS64R6O0-NEXT: sw $6, 4($sp) # 4-byte Folded Spill
+; MIPS64R6O0-NEXT: move $2, $6
; MIPS64R6O0-NEXT: daddiu $sp, $sp, 16
; MIPS64R6O0-NEXT: jrc $ra
;
@@ -6982,37 +6973,34 @@
; MIPS32O0: # %bb.0: # %entry
; MIPS32O0-NEXT: lui $2, %hi(_gp_disp)
; MIPS32O0-NEXT: addiu $2, $2, %lo(_gp_disp)
-; MIPS32O0-NEXT: addiu $sp, $sp, -16
+; MIPS32O0-NEXT: addiu $sp, $sp, -8
; MIPS32O0-NEXT: addu $1, $2, $25
; MIPS32O0-NEXT: sync
; MIPS32O0-NEXT: lw $1, %got(a)($1)
; MIPS32O0-NEXT: addiu $2, $zero, 0
; MIPS32O0-NEXT: addiu $3, $zero, 1
-; MIPS32O0-NEXT: lw $4, 12($sp) # 4-byte Folded Reload
-; MIPS32O0-NEXT: move $5, $3
+; MIPS32O0-NEXT: move $4, $3
; MIPS32O0-NEXT: $BB17_1: # %entry
; MIPS32O0-NEXT: # =>This Inner Loop Header: Depth=1
-; MIPS32O0-NEXT: ll $6, 0($1)
-; MIPS32O0-NEXT: bne $6, $5, $BB17_3
+; MIPS32O0-NEXT: ll $5, 0($1)
+; MIPS32O0-NEXT: bne $5, $4, $BB17_3
; MIPS32O0-NEXT: nop
; MIPS32O0-NEXT: # %bb.2: # %entry
; MIPS32O0-NEXT: # in Loop: Header=BB17_1 Depth=1
-; MIPS32O0-NEXT: move $7, $2
-; MIPS32O0-NEXT: sc $7, 0($1)
-; MIPS32O0-NEXT: beqz $7, $BB17_1
+; MIPS32O0-NEXT: move $6, $2
+; MIPS32O0-NEXT: sc $6, 0($1)
+; MIPS32O0-NEXT: beqz $6, $BB17_1
; MIPS32O0-NEXT: nop
; MIPS32O0-NEXT: $BB17_3: # %entry
-; MIPS32O0-NEXT: xor $1, $6, $3
+; MIPS32O0-NEXT: xor $1, $5, $3
; MIPS32O0-NEXT: sltiu $1, $1, 1
; MIPS32O0-NEXT: sync
; MIPS32O0-NEXT: addiu $2, $zero, 1
-; MIPS32O0-NEXT: xor $2, $6, $2
+; MIPS32O0-NEXT: xor $2, $5, $2
; MIPS32O0-NEXT: sltiu $2, $2, 1
; MIPS32O0-NEXT: andi $2, $2, 1
-; MIPS32O0-NEXT: sw $6, 12($sp) # 4-byte Folded Spill
-; MIPS32O0-NEXT: sw $4, 8($sp) # 4-byte Folded Spill
; MIPS32O0-NEXT: sw $1, 4($sp) # 4-byte Folded Spill
-; MIPS32O0-NEXT: addiu $sp, $sp, 16
+; MIPS32O0-NEXT: addiu $sp, $sp, 8
; MIPS32O0-NEXT: jr $ra
; MIPS32O0-NEXT: nop
;
@@ -7071,30 +7059,25 @@
; MIPS32R6O0: # %bb.0: # %entry
; MIPS32R6O0-NEXT: lui $2, %hi(_gp_disp)
; MIPS32R6O0-NEXT: addiu $2, $2, %lo(_gp_disp)
-; MIPS32R6O0-NEXT: addiu $sp, $sp, -8
; MIPS32R6O0-NEXT: addu $1, $2, $25
; MIPS32R6O0-NEXT: sync
; MIPS32R6O0-NEXT: lw $1, %got(a)($1)
; MIPS32R6O0-NEXT: addiu $2, $zero, 0
; MIPS32R6O0-NEXT: addiu $3, $zero, 1
-; MIPS32R6O0-NEXT: lw $4, 4($sp) # 4-byte Folded Reload
-; MIPS32R6O0-NEXT: move $5, $3
+; MIPS32R6O0-NEXT: move $4, $3
; MIPS32R6O0-NEXT: $BB17_1: # %entry
; MIPS32R6O0-NEXT: # =>This Inner Loop Header: Depth=1
-; MIPS32R6O0-NEXT: ll $6, 0($1)
-; MIPS32R6O0-NEXT: bnec $6, $5, $BB17_3
+; MIPS32R6O0-NEXT: ll $5, 0($1)
+; MIPS32R6O0-NEXT: bnec $5, $4, $BB17_3
; MIPS32R6O0-NEXT: # %bb.2: # %entry
; MIPS32R6O0-NEXT: # in Loop: Header=BB17_1 Depth=1
-; MIPS32R6O0-NEXT: move $7, $2
-; MIPS32R6O0-NEXT: sc $7, 0($1)
-; MIPS32R6O0-NEXT: beqzc $7, $BB17_1
+; MIPS32R6O0-NEXT: move $6, $2
+; MIPS32R6O0-NEXT: sc $6, 0($1)
+; MIPS32R6O0-NEXT: beqzc $6, $BB17_1
; MIPS32R6O0-NEXT: $BB17_3: # %entry
-; MIPS32R6O0-NEXT: xor $1, $6, $3
+; MIPS32R6O0-NEXT: xor $1, $5, $3
; MIPS32R6O0-NEXT: sltiu $2, $1, 1
; MIPS32R6O0-NEXT: sync
-; MIPS32R6O0-NEXT: sw $6, 4($sp) # 4-byte Folded Spill
-; MIPS32R6O0-NEXT: sw $4, 0($sp) # 4-byte Folded Spill
-; MIPS32R6O0-NEXT: addiu $sp, $sp, 8
; MIPS32R6O0-NEXT: jrc $ra
;
; MIPS4-LABEL: zeroreg:
@@ -7204,7 +7187,6 @@
;
; MIPS64R6O0-LABEL: zeroreg:
; MIPS64R6O0: # %bb.0: # %entry
-; MIPS64R6O0-NEXT: daddiu $sp, $sp, -16
; MIPS64R6O0-NEXT: lui $1, %hi(%neg(%gp_rel(zeroreg)))
; MIPS64R6O0-NEXT: daddu $1, $1, $25
; MIPS64R6O0-NEXT: daddiu $1, $1, %lo(%neg(%gp_rel(zeroreg)))
@@ -7212,24 +7194,20 @@
; MIPS64R6O0-NEXT: ld $1, %got_disp(a)($1)
; MIPS64R6O0-NEXT: addiu $2, $zero, 0
; MIPS64R6O0-NEXT: addiu $3, $zero, 1
-; MIPS64R6O0-NEXT: lw $4, 12($sp) # 4-byte Folded Reload
-; MIPS64R6O0-NEXT: move $5, $3
+; MIPS64R6O0-NEXT: move $4, $3
; MIPS64R6O0-NEXT: .LBB17_1: # %entry
; MIPS64R6O0-NEXT: # =>This Inner Loop Header: Depth=1
-; MIPS64R6O0-NEXT: ll $6, 0($1)
-; MIPS64R6O0-NEXT: bnec $6, $5, .LBB17_3
+; MIPS64R6O0-NEXT: ll $5, 0($1)
+; MIPS64R6O0-NEXT: bnec $5, $4, .LBB17_3
; MIPS64R6O0-NEXT: # %bb.2: # %entry
; MIPS64R6O0-NEXT: # in Loop: Header=BB17_1 Depth=1
-; MIPS64R6O0-NEXT: move $7, $2
-; MIPS64R6O0-NEXT: sc $7, 0($1)
-; MIPS64R6O0-NEXT: beqzc $7, .LBB17_1
+; MIPS64R6O0-NEXT: move $6, $2
+; MIPS64R6O0-NEXT: sc $6, 0($1)
+; MIPS64R6O0-NEXT: beqzc $6, .LBB17_1
; MIPS64R6O0-NEXT: .LBB17_3: # %entry
-; MIPS64R6O0-NEXT: xor $2, $6, $3
+; MIPS64R6O0-NEXT: xor $2, $5, $3
; MIPS64R6O0-NEXT: sltiu $2, $2, 1
; MIPS64R6O0-NEXT: sync
-; MIPS64R6O0-NEXT: sw $6, 12($sp) # 4-byte Folded Spill
-; MIPS64R6O0-NEXT: sw $4, 8($sp) # 4-byte Folded Spill
-; MIPS64R6O0-NEXT: daddiu $sp, $sp, 16
; MIPS64R6O0-NEXT: jrc $ra
;
; MM32-LABEL: zeroreg:
diff --git a/test/CodeGen/Mips/atomic64.ll b/test/CodeGen/Mips/atomic64.ll
index c8f08df..38b47e8 100644
--- a/test/CodeGen/Mips/atomic64.ll
+++ b/test/CodeGen/Mips/atomic64.ll
@@ -1274,32 +1274,29 @@
;
; MIPS64R6O0-LABEL: AtomicCmpSwap64:
; MIPS64R6O0: # %bb.0: # %entry
-; MIPS64R6O0-NEXT: daddiu $sp, $sp, -48
+; MIPS64R6O0-NEXT: daddiu $sp, $sp, -32
; MIPS64R6O0-NEXT: lui $1, %hi(%neg(%gp_rel(AtomicCmpSwap64)))
; MIPS64R6O0-NEXT: daddu $1, $1, $25
; MIPS64R6O0-NEXT: daddiu $1, $1, %lo(%neg(%gp_rel(AtomicCmpSwap64)))
; MIPS64R6O0-NEXT: move $2, $5
; MIPS64R6O0-NEXT: move $3, $4
-; MIPS64R6O0-NEXT: sd $5, 40($sp)
-; MIPS64R6O0-NEXT: ld $5, 40($sp)
+; MIPS64R6O0-NEXT: sd $5, 24($sp)
+; MIPS64R6O0-NEXT: ld $5, 24($sp)
; MIPS64R6O0-NEXT: ld $1, %got_disp(x)($1)
-; MIPS64R6O0-NEXT: ld $6, 32($sp) # 8-byte Folded Reload
; MIPS64R6O0-NEXT: .LBB7_1: # %entry
; MIPS64R6O0-NEXT: # =>This Inner Loop Header: Depth=1
-; MIPS64R6O0-NEXT: lld $7, 0($1)
-; MIPS64R6O0-NEXT: bnec $7, $4, .LBB7_3
+; MIPS64R6O0-NEXT: lld $6, 0($1)
+; MIPS64R6O0-NEXT: bnec $6, $4, .LBB7_3
; MIPS64R6O0-NEXT: # %bb.2: # %entry
; MIPS64R6O0-NEXT: # in Loop: Header=BB7_1 Depth=1
-; MIPS64R6O0-NEXT: move $8, $5
-; MIPS64R6O0-NEXT: scd $8, 0($1)
-; MIPS64R6O0-NEXT: beqzc $8, .LBB7_1
+; MIPS64R6O0-NEXT: move $7, $5
+; MIPS64R6O0-NEXT: scd $7, 0($1)
+; MIPS64R6O0-NEXT: beqzc $7, .LBB7_1
; MIPS64R6O0-NEXT: .LBB7_3: # %entry
-; MIPS64R6O0-NEXT: sd $2, 24($sp) # 8-byte Folded Spill
-; MIPS64R6O0-NEXT: move $2, $7
-; MIPS64R6O0-NEXT: sd $3, 16($sp) # 8-byte Folded Spill
-; MIPS64R6O0-NEXT: sd $7, 32($sp) # 8-byte Folded Spill
-; MIPS64R6O0-NEXT: sd $6, 8($sp) # 8-byte Folded Spill
-; MIPS64R6O0-NEXT: daddiu $sp, $sp, 48
+; MIPS64R6O0-NEXT: sd $2, 16($sp) # 8-byte Folded Spill
+; MIPS64R6O0-NEXT: move $2, $6
+; MIPS64R6O0-NEXT: sd $3, 8($sp) # 8-byte Folded Spill
+; MIPS64R6O0-NEXT: daddiu $sp, $sp, 32
; MIPS64R6O0-NEXT: jrc $ra
;
; O1-LABEL: AtomicCmpSwap64:
diff --git a/test/CodeGen/Mips/atomicCmpSwapPW.ll b/test/CodeGen/Mips/atomicCmpSwapPW.ll
index bc4b489..c07d42d 100644
--- a/test/CodeGen/Mips/atomicCmpSwapPW.ll
+++ b/test/CodeGen/Mips/atomicCmpSwapPW.ll
@@ -18,24 +18,22 @@
; O32-NEXT: lui $3, %hi(sym)
; O32-NEXT: lw $3, %lo(sym)($3)
; O32-NEXT: sync
-; O32-NEXT: lw $6, 12($sp) # 4-byte Folded Reload
; O32-NEXT: $BB0_1: # %entry
; O32-NEXT: # =>This Inner Loop Header: Depth=1
-; O32-NEXT: ll $7, 0($3)
-; O32-NEXT: bne $7, $4, $BB0_3
+; O32-NEXT: ll $6, 0($3)
+; O32-NEXT: bne $6, $4, $BB0_3
; O32-NEXT: nop
; O32-NEXT: # %bb.2: # %entry
; O32-NEXT: # in Loop: Header=BB0_1 Depth=1
-; O32-NEXT: move $8, $5
-; O32-NEXT: sc $8, 0($3)
-; O32-NEXT: beqz $8, $BB0_1
+; O32-NEXT: move $7, $5
+; O32-NEXT: sc $7, 0($3)
+; O32-NEXT: beqz $7, $BB0_1
; O32-NEXT: nop
; O32-NEXT: $BB0_3: # %entry
; O32-NEXT: sync
-; O32-NEXT: sw $1, 8($sp) # 4-byte Folded Spill
-; O32-NEXT: sw $2, 4($sp) # 4-byte Folded Spill
-; O32-NEXT: sw $7, 12($sp) # 4-byte Folded Spill
-; O32-NEXT: sw $6, 0($sp) # 4-byte Folded Spill
+; O32-NEXT: sw $1, 12($sp) # 4-byte Folded Spill
+; O32-NEXT: sw $2, 8($sp) # 4-byte Folded Spill
+; O32-NEXT: sw $6, 4($sp) # 4-byte Folded Spill
; O32-NEXT: addiu $sp, $sp, 16
; O32-NEXT: jr $ra
; O32-NEXT: nop
@@ -51,22 +49,20 @@
; N32-NEXT: lui $3, %hi(sym)
; N32-NEXT: lw $3, %lo(sym)($3)
; N32-NEXT: sync
-; N32-NEXT: lw $6, 12($sp) # 4-byte Folded Reload
; N32-NEXT: .LBB0_1: # %entry
; N32-NEXT: # =>This Inner Loop Header: Depth=1
-; N32-NEXT: ll $7, 0($3)
-; N32-NEXT: bne $7, $2, .LBB0_3
+; N32-NEXT: ll $6, 0($3)
+; N32-NEXT: bne $6, $2, .LBB0_3
; N32-NEXT: nop
; N32-NEXT: # %bb.2: # %entry
; N32-NEXT: # in Loop: Header=BB0_1 Depth=1
-; N32-NEXT: move $8, $1
-; N32-NEXT: sc $8, 0($3)
-; N32-NEXT: beqz $8, .LBB0_1
+; N32-NEXT: move $7, $1
+; N32-NEXT: sc $7, 0($3)
+; N32-NEXT: beqz $7, .LBB0_1
; N32-NEXT: nop
; N32-NEXT: .LBB0_3: # %entry
; N32-NEXT: sync
-; N32-NEXT: sw $7, 12($sp) # 4-byte Folded Spill
-; N32-NEXT: sw $6, 8($sp) # 4-byte Folded Spill
+; N32-NEXT: sw $6, 12($sp) # 4-byte Folded Spill
; N32-NEXT: addiu $sp, $sp, 16
; N32-NEXT: jr $ra
; N32-NEXT: nop
@@ -86,22 +82,20 @@
; N64-NEXT: dsll $3, $3, 16
; N64-NEXT: ld $3, %lo(sym)($3)
; N64-NEXT: sync
-; N64-NEXT: lw $6, 12($sp) # 4-byte Folded Reload
; N64-NEXT: .LBB0_1: # %entry
; N64-NEXT: # =>This Inner Loop Header: Depth=1
-; N64-NEXT: ll $7, 0($3)
-; N64-NEXT: bne $7, $2, .LBB0_3
+; N64-NEXT: ll $6, 0($3)
+; N64-NEXT: bne $6, $2, .LBB0_3
; N64-NEXT: nop
; N64-NEXT: # %bb.2: # %entry
; N64-NEXT: # in Loop: Header=BB0_1 Depth=1
-; N64-NEXT: move $8, $1
-; N64-NEXT: sc $8, 0($3)
-; N64-NEXT: beqz $8, .LBB0_1
+; N64-NEXT: move $7, $1
+; N64-NEXT: sc $7, 0($3)
+; N64-NEXT: beqz $7, .LBB0_1
; N64-NEXT: nop
; N64-NEXT: .LBB0_3: # %entry
; N64-NEXT: sync
-; N64-NEXT: sw $7, 12($sp) # 4-byte Folded Spill
-; N64-NEXT: sw $6, 8($sp) # 4-byte Folded Spill
+; N64-NEXT: sw $6, 12($sp) # 4-byte Folded Spill
; N64-NEXT: daddiu $sp, $sp, 16
; N64-NEXT: jr $ra
; N64-NEXT: nop
