[llvm-commits] [llvm] r79648 - in /llvm/trunk: lib/Target/SystemZ/SystemZISelLowering.cpp lib/Target/SystemZ/SystemZISelLowering.h test/CodeGen/SystemZ/2009-08-21-InlineAsmRConstraint.ll
Anton Korobeynikov
asl at math.spbu.ru
Fri Aug 21 11:15:41 PDT 2009
Author: asl
Date: Fri Aug 21 13:15:41 2009
New Revision: 79648
URL: http://llvm.org/viewvc/llvm-project?rev=79648&view=rev
Log:
Handle 'r' inline asm constraint
Added:
llvm/trunk/test/CodeGen/SystemZ/2009-08-21-InlineAsmRConstraint.ll
Modified:
llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp
llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.h
Modified: llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp?rev=79648&r1=79647&r2=79648&view=diff
==============================================================================
--- llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp Fri Aug 21 13:15:41 2009
@@ -165,6 +165,46 @@
}
//===----------------------------------------------------------------------===//
+// SystemZ Inline Assembly Support
+//===----------------------------------------------------------------------===//
+
+/// getConstraintType - Given a constraint letter, return the type of
+/// constraint it is for this target.
+TargetLowering::ConstraintType
+SystemZTargetLowering::getConstraintType(const std::string &Constraint) const {
+ if (Constraint.size() == 1) {
+ switch (Constraint[0]) {
+ case 'r':
+ return C_RegisterClass;
+ default:
+ break;
+ }
+ }
+ return TargetLowering::getConstraintType(Constraint);
+}
+
+std::pair<unsigned, const TargetRegisterClass*>
+SystemZTargetLowering::
+getRegForInlineAsmConstraint(const std::string &Constraint,
+ EVT VT) const {
+ if (Constraint.size() == 1) {
+ // GCC Constraint Letters
+ switch (Constraint[0]) {
+ default: break;
+ case 'r': // GENERAL_REGS
+ if (VT == MVT::i32)
+ return std::make_pair(0U, SystemZ::GR32RegisterClass);
+ else if (VT == MVT::i128)
+ return std::make_pair(0U, SystemZ::GR128RegisterClass);
+
+ return std::make_pair(0U, SystemZ::GR64RegisterClass);
+ }
+ }
+
+ return TargetLowering::getRegForInlineAsmConstraint(Constraint, VT);
+}
+
+//===----------------------------------------------------------------------===//
// Calling Convention Implementation
//===----------------------------------------------------------------------===//
Modified: llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.h?rev=79648&r1=79647&r2=79648&view=diff
==============================================================================
--- llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.h (original)
+++ llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.h Fri Aug 21 13:15:41 2009
@@ -69,6 +69,11 @@
return 1;
}
+ std::pair<unsigned, const TargetRegisterClass*>
+ getRegForInlineAsmConstraint(const std::string &Constraint, EVT VT) const;
+ TargetLowering::ConstraintType
+ getConstraintType(const std::string &Constraint) const;
+
SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG);
SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG);
SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG);
Added: llvm/trunk/test/CodeGen/SystemZ/2009-08-21-InlineAsmRConstraint.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/SystemZ/2009-08-21-InlineAsmRConstraint.ll?rev=79648&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/SystemZ/2009-08-21-InlineAsmRConstraint.ll (added)
+++ llvm/trunk/test/CodeGen/SystemZ/2009-08-21-InlineAsmRConstraint.ll Fri Aug 21 13:15:41 2009
@@ -0,0 +1,103 @@
+; RUN: llvm-as < %s | llc
+target datalayout = "E-p:64:64:64-i1:8:8-i8:8:16-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:16:16-f128:128:128"
+target triple = "s390x-ibm-linux-gnu"
+
+%0 = type { i64 }
+%struct.anon = type { %struct.dwarf_fde* }
+%struct.dwarf_fde = type <{ i32, i32, [0 x i8] }>
+%struct.object = type { i8*, i8*, i8*, %struct.anon, %0, %struct.object* }
+
+ at __dso_handle = hidden global i8* null ; <i8**> [#uses=0]
+ at __CTOR_LIST__ = internal global [1 x void ()*] [void ()* inttoptr (i64 -1 to void ()*)], section ".ctors", align 8 ; <[1 x void ()*]*> [#uses=1]
+ at __DTOR_LIST__ = internal global [1 x void ()*] [void ()* inttoptr (i64 -1 to void ()*)], section ".dtors", align 8 ; <[1 x void ()*]*> [#uses=2]
+ at __EH_FRAME_BEGIN__ = internal constant [0 x i8] zeroinitializer, section ".eh_frame", align 4 ; <[0 x i8]*> [#uses=1]
+ at __JCR_LIST__ = internal global [0 x i8*] zeroinitializer, section ".jcr", align 8 ; <[0 x i8*]*> [#uses=2]
+ at completed.1298.b = internal global i1 false ; <i1*> [#uses=2]
+ at p.1296 = internal global void ()** getelementptr ([1 x void ()*]* @__DTOR_LIST__, i64 1, i64 0) ; <void ()***> [#uses=3]
+ at object.1314 = internal global %struct.object zeroinitializer ; <%struct.object*> [#uses=1]
+ at llvm.used = appending global [7 x i8*] [i8* bitcast ([1 x void ()*]* @__CTOR_LIST__ to i8*), i8* bitcast ([1 x void ()*]* @__DTOR_LIST__ to i8*), i8* getelementptr inbounds ([0 x i8]* @__EH_FRAME_BEGIN__, i32 0, i32 0), i8* bitcast (void ()* @__do_global_dtors_aux to i8*), i8* bitcast (void ()* @call___do_global_dtors_aux to i8*), i8* bitcast (void ()* @frame_dummy to i8*), i8* bitcast (void ()* @call_frame_dummy to i8*)], section "llvm.metadata" ; <[7 x i8*]*> [#uses=0]
+
+define internal void @__do_global_dtors_aux() nounwind {
+entry:
+ %.b = load i1* @completed.1298.b ; <i1> [#uses=1]
+ br i1 %.b, label %return, label %bb1.preheader
+
+bb1.preheader: ; preds = %entry
+ %0 = load void ()*** @p.1296, align 8 ; <void ()**> [#uses=2]
+ %1 = load void ()** %0, align 8 ; <void ()*> [#uses=2]
+ %2 = icmp eq void ()* %1, null ; <i1> [#uses=1]
+ br i1 %2, label %bb2, label %bb
+
+bb: ; preds = %bb, %bb1.preheader
+ %3 = phi void ()** [ %0, %bb1.preheader ], [ %6, %bb ] ; <void ()**> [#uses=1]
+ %4 = phi void ()* [ %1, %bb1.preheader ], [ %7, %bb ] ; <void ()*> [#uses=1]
+ %5 = getelementptr inbounds void ()** %3, i64 1 ; <void ()**> [#uses=1]
+ store void ()** %5, void ()*** @p.1296, align 8
+ tail call void %4() nounwind
+ %6 = load void ()*** @p.1296, align 8 ; <void ()**> [#uses=2]
+ %7 = load void ()** %6, align 8 ; <void ()*> [#uses=2]
+ %8 = icmp eq void ()* %7, null ; <i1> [#uses=1]
+ br i1 %8, label %bb2, label %bb
+
+bb2: ; preds = %bb, %bb1.preheader
+ br i1 icmp ne (i8* (i8*)* @__deregister_frame_info, i8* (i8*)* null), label %bb3, label %bb4
+
+bb3: ; preds = %bb2
+ %9 = tail call i8* @__deregister_frame_info(i8* getelementptr inbounds ([0 x i8]* @__EH_FRAME_BEGIN__, i32 0, i32 0)) nounwind ; <i8*> [#uses=0]
+ br label %bb4
+
+bb4: ; preds = %bb2, %bb3
+ store i1 true, i1* @completed.1298.b
+ ret void
+
+return: ; preds = %entry
+ ret void
+}
+
+declare extern_weak i8* @__deregister_frame_info(i8*)
+
+define internal void @call___do_global_dtors_aux() nounwind {
+entry:
+ tail call void asm sideeffect "\09.section\09.fini", ""() nounwind
+ tail call void @__do_global_dtors_aux() nounwind
+ tail call void asm sideeffect ".text", ""() nounwind
+ ret void
+}
+
+define internal void @frame_dummy() nounwind {
+entry:
+ br i1 icmp ne (void (i8*, %struct.object*)* @__register_frame_info, void (i8*, %struct.object*)* null), label %bb, label %bb1
+
+bb: ; preds = %entry
+ tail call void @__register_frame_info(i8* getelementptr inbounds ([0 x i8]* @__EH_FRAME_BEGIN__, i32 0, i32 0), %struct.object* @object.1314) nounwind
+ br label %bb1
+
+bb1: ; preds = %entry, %bb
+ %0 = load i8** getelementptr inbounds ([0 x i8*]* @__JCR_LIST__, i64 0, i64 0), align 8 ; <i8*> [#uses=1]
+ %1 = icmp eq i8* %0, null ; <i1> [#uses=1]
+ br i1 %1, label %return, label %bb2
+
+bb2: ; preds = %bb1
+ %asmtmp = tail call void (i8*)* (void (i8*)*)* asm "", "=r,0"(void (i8*)* @_Jv_RegisterClasses) nounwind ; <void (i8*)*> [#uses=2]
+ %2 = icmp eq void (i8*)* %asmtmp, null ; <i1> [#uses=1]
+ br i1 %2, label %return, label %bb3
+
+bb3: ; preds = %bb2
+ tail call void %asmtmp(i8* bitcast ([0 x i8*]* @__JCR_LIST__ to i8*)) nounwind
+ ret void
+
+return: ; preds = %bb2, %bb1
+ ret void
+}
+
+declare extern_weak void @__register_frame_info(i8*, %struct.object*)
+
+declare extern_weak void @_Jv_RegisterClasses(i8*)
+
+define internal void @call_frame_dummy() nounwind {
+entry:
+ tail call void asm sideeffect "\09.section\09.init", ""() nounwind
+ tail call void @frame_dummy() nounwind
+ tail call void asm sideeffect ".text", ""() nounwind
+ ret void
+}
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