Remove the link register from the GPR classes on PowerPC.

Some implementation detail in the forgotten past required the link
register to be placed in the GPRC and G8RC register classes.  This is
just wrong on the face of it, and causes several extra intersection
register classes to be generated.  I found this was having evil
effects on instruction scheduling, by causing the wrong register class
to be consulted for register pressure decisions.

No code generation changes are expected, other than some minor changes
in instruction order.  Seven tests in the test bucket required minor
tweaks to adjust to the new normal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178114 91177308-0d34-0410-b5e6-96231b3b80d8

8 files changed, 17 insertions, 17 deletions

diff --git a/lib/Target/PowerPC/PPCRegisterInfo.td b/lib/Target/PowerPC/PPCRegisterInfo.td
index c5e325545d..aa5584ee3c 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.td
+++ b/lib/Target/PowerPC/PPCRegisterInfo.td
@@ -172,11 +172,11 @@ def RM: SPR<512, "**ROUNDING MODE**">;
 // then nonvolatiles in reverse order since stmw/lmw save from rN to r31
 def GPRC : RegisterClass<"PPC", [i32], 32, (add (sequence "R%u", 2, 12),
                                                 (sequence "R%u", 30, 13),
-                                                R31, R0, R1, LR, FP)>;
+                                                R31, R0, R1, FP)>;
 
 def G8RC : RegisterClass<"PPC", [i64], 64, (add (sequence "X%u", 2, 12),
                                                 (sequence "X%u", 30, 14),
-                                                X31, X13, X0, X1, LR8, FP8)>;
+                                                X31, X13, X0, X1, FP8)>;
 
 // For some instructions r0 is special (representing the value 0 instead of
 // the value in the r0 register), and we use these register subclasses to
diff --git a/test/CodeGen/PowerPC/jaggedstructs.ll b/test/CodeGen/PowerPC/jaggedstructs.ll
index 62aa7cf929..a10c5ddb36 100644
--- a/test/CodeGen/PowerPC/jaggedstructs.ll
+++ b/test/CodeGen/PowerPC/jaggedstructs.ll
@@ -23,22 +23,22 @@ entry:
 ; CHECK: std 4, 200(1)
 ; CHECK: std 3, 192(1)
 ; CHECK: lbz {{[0-9]+}}, 199(1)
-; CHECK: stb {{[0-9]+}}, 55(1)
 ; CHECK: lhz {{[0-9]+}}, 197(1)
+; CHECK: stb {{[0-9]+}}, 55(1)
 ; CHECK: sth {{[0-9]+}}, 53(1)
 ; CHECK: lbz {{[0-9]+}}, 207(1)
-; CHECK: stb {{[0-9]+}}, 63(1)
 ; CHECK: lwz {{[0-9]+}}, 203(1)
+; CHECK: stb {{[0-9]+}}, 63(1)
 ; CHECK: stw {{[0-9]+}}, 59(1)
 ; CHECK: lhz {{[0-9]+}}, 214(1)
-; CHECK: sth {{[0-9]+}}, 70(1)
 ; CHECK: lwz {{[0-9]+}}, 210(1)
+; CHECK: sth {{[0-9]+}}, 70(1)
 ; CHECK: stw {{[0-9]+}}, 66(1)
 ; CHECK: lbz {{[0-9]+}}, 223(1)
-; CHECK: stb {{[0-9]+}}, 79(1)
 ; CHECK: lhz {{[0-9]+}}, 221(1)
-; CHECK: sth {{[0-9]+}}, 77(1)
 ; CHECK: lwz {{[0-9]+}}, 217(1)
+; CHECK: stb {{[0-9]+}}, 79(1)
+; CHECK: sth {{[0-9]+}}, 77(1)
 ; CHECK: stw {{[0-9]+}}, 73(1)
 ; CHECK: ld 6, 72(1)
 ; CHECK: ld 5, 64(1)
diff --git a/test/CodeGen/PowerPC/structsinmem.ll b/test/CodeGen/PowerPC/structsinmem.ll
index 8dbe63dc72..2a17e740ea 100644
--- a/test/CodeGen/PowerPC/structsinmem.ll
+++ b/test/CodeGen/PowerPC/structsinmem.ll
@@ -114,8 +114,8 @@ entry:
   ret i32 %add13
 
 ; CHECK: lha {{[0-9]+}}, 126(1)
-; CHECK: lbz {{[0-9]+}}, 119(1)
 ; CHECK: lha {{[0-9]+}}, 132(1)
+; CHECK: lbz {{[0-9]+}}, 119(1)
 ; CHECK: lwz {{[0-9]+}}, 140(1)
 ; CHECK: lwz {{[0-9]+}}, 144(1)
 ; CHECK: lwz {{[0-9]+}}, 152(1)
@@ -206,8 +206,8 @@ entry:
   ret i32 %add13
 
 ; CHECK: lha {{[0-9]+}}, 126(1)
-; CHECK: lbz {{[0-9]+}}, 119(1)
 ; CHECK: lha {{[0-9]+}}, 133(1)
+; CHECK: lbz {{[0-9]+}}, 119(1)
 ; CHECK: lwz {{[0-9]+}}, 140(1)
 ; CHECK: lwz {{[0-9]+}}, 147(1)
 ; CHECK: lwz {{[0-9]+}}, 154(1)
diff --git a/test/CodeGen/PowerPC/structsinregs.ll b/test/CodeGen/PowerPC/structsinregs.ll
index 6005614bdd..54de6060d0 100644
--- a/test/CodeGen/PowerPC/structsinregs.ll
+++ b/test/CodeGen/PowerPC/structsinregs.ll
@@ -105,8 +105,8 @@ entry:
 ; CHECK: sth 4, 62(1)
 ; CHECK: stb 3, 55(1)
 ; CHECK: lha {{[0-9]+}}, 62(1)
-; CHECK: lbz {{[0-9]+}}, 55(1)
 ; CHECK: lha {{[0-9]+}}, 68(1)
+; CHECK: lbz {{[0-9]+}}, 55(1)
 ; CHECK: lwz {{[0-9]+}}, 76(1)
 ; CHECK: lwz {{[0-9]+}}, 80(1)
 ; CHECK: lwz {{[0-9]+}}, 88(1)
@@ -192,8 +192,8 @@ entry:
 ; CHECK: sth 4, 62(1)
 ; CHECK: stb 3, 55(1)
 ; CHECK: lha {{[0-9]+}}, 62(1)
-; CHECK: lbz {{[0-9]+}}, 55(1)
 ; CHECK: lha {{[0-9]+}}, 69(1)
+; CHECK: lbz {{[0-9]+}}, 55(1)
 ; CHECK: lwz {{[0-9]+}}, 76(1)
 ; CHECK: lwz {{[0-9]+}}, 83(1)
 ; CHECK: lwz {{[0-9]+}}, 90(1)
diff --git a/test/CodeGen/PowerPC/tls-gd.ll b/test/CodeGen/PowerPC/tls-gd.ll
index fb8dfaf04a..5f0ef9a050 100644
--- a/test/CodeGen/PowerPC/tls-gd.ll
+++ b/test/CodeGen/PowerPC/tls-gd.ll
@@ -18,6 +18,6 @@ entry:
 
 ; CHECK: addis [[REG:[0-9]+]], 2, a@got@tlsgd@ha
 ; CHECK-NEXT: addi 3, [[REG]], a@got@tlsgd@l
-; CHECK-NEXT: bl __tls_get_addr(a@tlsgd)
+; CHECK:      bl __tls_get_addr(a@tlsgd)
 ; CHECK-NEXT: nop
 
diff --git a/test/CodeGen/PowerPC/tls-ld-2.ll b/test/CodeGen/PowerPC/tls-ld-2.ll
index 4954afeb24..4399b330ea 100644
--- a/test/CodeGen/PowerPC/tls-ld-2.ll
+++ b/test/CodeGen/PowerPC/tls-ld-2.ll
@@ -18,7 +18,7 @@ entry:
 
 ; CHECK:      addis [[REG:[0-9]+]], 2, a@got@tlsld@ha
 ; CHECK-NEXT: addi 3, [[REG]], a@got@tlsld@l
-; CHECK-NEXT: bl __tls_get_addr(a@tlsld)
+; CHECK:      bl __tls_get_addr(a@tlsld)
 ; CHECK-NEXT: nop
-; CHECK-NEXT: addis [[REG2:[0-9]+]], 3, a@dtprel@ha
+; CHECK:      addis [[REG2:[0-9]+]], 3, a@dtprel@ha
 ; CHECK-NEXT: lwa {{[0-9]+}}, a@dtprel@l([[REG2]])
diff --git a/test/CodeGen/PowerPC/tls-ld.ll b/test/CodeGen/PowerPC/tls-ld.ll
index 1ebc6129e2..db02a56f6a 100644
--- a/test/CodeGen/PowerPC/tls-ld.ll
+++ b/test/CodeGen/PowerPC/tls-ld.ll
@@ -18,7 +18,7 @@ entry:
 
 ; CHECK:      addis [[REG:[0-9]+]], 2, a@got@tlsld@ha
 ; CHECK-NEXT: addi 3, [[REG]], a@got@tlsld@l
-; CHECK-NEXT: bl __tls_get_addr(a@tlsld)
+; CHECK:      bl __tls_get_addr(a@tlsld)
 ; CHECK-NEXT: nop
-; CHECK-NEXT: addis [[REG2:[0-9]+]], 3, a@dtprel@ha
+; CHECK:      addis [[REG2:[0-9]+]], 3, a@dtprel@ha
 ; CHECK-NEXT: addi {{[0-9]+}}, [[REG2]], a@dtprel@l
diff --git a/test/CodeGen/PowerPC/tls.ll b/test/CodeGen/PowerPC/tls.ll
index 151b4b7dda..2daa60ab37 100644
--- a/test/CodeGen/PowerPC/tls.ll
+++ b/test/CodeGen/PowerPC/tls.ll
@@ -12,7 +12,7 @@ entry:
 ;OPT0:          addis [[REG1:[0-9]+]], 13, a@tprel@ha
 ;OPT0-NEXT:     li [[REG2:[0-9]+]], 42
 ;OPT0-NEXT:     addi [[REG1]], [[REG1]], a@tprel@l
-;OPT0-NEXT:     stw [[REG2]], 0([[REG1]])
+;OPT0:          stw [[REG2]], 0([[REG1]])
 ;OPT1:          addis [[REG1:[0-9]+]], 13, a@tprel@ha
 ;OPT1-NEXT:     li [[REG2:[0-9]+]], 42
 ;OPT1-NEXT:     stw [[REG2]], a@tprel@l([[REG1]])