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Pull r200368 from upstream llvm trunk (by Venkatraman Govindaraju):
[SparcV9] Use correct register class (I64RegClass) to hold the address of _GLOBAL_OFFSET_TABLE_ in sparcv9.
Introduced here: http://svnweb.freebsd.org/changeset/base/262261
Index: lib/Target/Sparc/SparcInstrInfo.cpp
===================================================================
--- lib/Target/Sparc/SparcInstrInfo.cpp
+++ lib/Target/Sparc/SparcInstrInfo.cpp
@@ -431,9 +431,10 @@ unsigned SparcInstrInfo::getGlobalBaseReg(MachineF
MachineBasicBlock::iterator MBBI = FirstMBB.begin();
MachineRegisterInfo &RegInfo = MF->getRegInfo();
- GlobalBaseReg = RegInfo.createVirtualRegister(&SP::IntRegsRegClass);
+ const TargetRegisterClass *PtrRC =
+ Subtarget.is64Bit() ? &SP::I64RegsRegClass : &SP::IntRegsRegClass;
+ GlobalBaseReg = RegInfo.createVirtualRegister(PtrRC);
-
DebugLoc dl;
BuildMI(FirstMBB, MBBI, dl, get(SP::GETPCX), GlobalBaseReg);
Index: lib/Target/Sparc/SparcInstrInfo.td
===================================================================
--- lib/Target/Sparc/SparcInstrInfo.td
+++ lib/Target/Sparc/SparcInstrInfo.td
@@ -180,7 +180,7 @@ def tlscall : SDNode<"SPISD::TLS_CALL", SDT_
[SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
SDNPVariadic]>;
-def getPCX : Operand<i32> {
+def getPCX : Operand<iPTR> {
let PrintMethod = "printGetPCX";
}
Index: test/CodeGen/SPARC/2009-08-28-PIC.ll
===================================================================
--- test/CodeGen/SPARC/2009-08-28-PIC.ll
+++ test/CodeGen/SPARC/2009-08-28-PIC.ll
@@ -1,9 +1,45 @@
-; RUN: llc -march=sparc --relocation-model=pic < %s | grep _GLOBAL_OFFSET_TABLE_
+; RUN: llc -march=sparc --relocation-model=pic < %s | FileCheck %s --check-prefix=V8
+; RUN: llc -march=sparcv9 --relocation-model=pic < %s | FileCheck %s --check-prefix=V9
+; RUN: llc -march=sparc --relocation-model=pic < %s -O0 | FileCheck %s --check-prefix=V8UNOPT
+; RUN: llc -march=sparcv9 --relocation-model=pic < %s -O0 | FileCheck %s --check-prefix=V9UNOPT
+
+; V8-LABEL: func
+; V8: _GLOBAL_OFFSET_TABLE_
+
+; V9-LABEL: func
+; V9: _GLOBAL_OFFSET_TABLE_
+
@foo = global i32 0 ; <i32*> [#uses=1]
-define i32 @func() nounwind readonly {
+define i32 @func(i32 %a) nounwind readonly {
entry:
%0 = load i32* @foo, align 4 ; <i32> [#uses=1]
ret i32 %0
}
+
+; V8UNOPT-LABEL: test_spill
+; V8UNOPT: sethi %hi(_GLOBAL_OFFSET_TABLE_+{{.+}}), [[R:%[goli][0-7]]]
+; V8UNOPT: or [[R]], %lo(_GLOBAL_OFFSET_TABLE_+{{.+}}), [[R]]
+; V8UNOPT: add [[R]], %o7, [[R]]
+; V8UNOPT: st [[R]], [%fp+{{.+}}]
+
+; V9UNOPT-LABEL: test_spill
+; V9UNOPT: sethi %hi(_GLOBAL_OFFSET_TABLE_+{{.+}}), [[R:%[goli][0-7]]]
+; V9UNOPT: or [[R]], %lo(_GLOBAL_OFFSET_TABLE_+{{.+}}), [[R]]
+; V9UNOPT: add [[R]], %o7, [[R]]
+; V9UNOPT: stx [[R]], [%fp+{{.+}}]
+
+define i32 @test_spill(i32 %a, i32 %b) {
+entry:
+ %cmp = icmp eq i32 %b, 0
+ br i1 %cmp, label %if.then, label %if.end
+
+if.then:
+ %ret = load i32* @foo, align 4
+ ret i32 %ret
+
+if.end:
+ %add = add nsw i32 %b, %a
+ ret i32 %add
+}
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