Use TargetRegisterInfo for printing MachineOperand register comments

Several places in AsmPrinter.cpp print comments describing MachineOperand
registers using MCRegisterInfo, which uses MCOperand-oriented names. This
doesn't work for targets that use virtual registers exclusively, as
WebAssembly does, since virtual registers are represented and printed
differently.

This patch preserves what seems to be the spirit of r229978, avoiding the
use of TM.getSubtargetImpl(), while still using MachineOperand-oriented
printing for MachineOperands.

Differential Revision: http://reviews.llvm.org/D14709

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253338 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index f1e4cb813df2201f94b55430bc36d5d9a72be5f5..fabae38950f25e6bbc2272d17e5d4f711935caff 100644 (file)
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -724,19 +724,27 @@ static void emitComments(const MachineInstr &MI, raw_ostream &CommentOS) {
 /// that is an implicit def.
 void AsmPrinter::emitImplicitDef(const MachineInstr *MI) const {
   unsigned RegNo = MI->getOperand(0).getReg();
-  OutStreamer->AddComment(Twine("implicit-def: ") +
-                          MMI->getContext().getRegisterInfo()->getName(RegNo));
+
+  SmallString<128> Str;
+  raw_svector_ostream OS(Str);
+  OS << "implicit-def: "
+     << PrintReg(RegNo, MF->getSubtarget().getRegisterInfo());
+
+  OutStreamer->AddComment(OS.str());
   OutStreamer->AddBlankLine();
 }
 
 static void emitKill(const MachineInstr *MI, AsmPrinter &AP) {
-  std::string Str = "kill:";
+  std::string Str;
+  raw_string_ostream OS(Str);
+  OS << "kill:";
   for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
     const MachineOperand &Op = MI->getOperand(i);
     assert(Op.isReg() && "KILL instruction must have only register operands");
-    Str += ' ';
-    Str += AP.MMI->getContext().getRegisterInfo()->getName(Op.getReg());
-    Str += (Op.isDef() ? "<def>" : "<kill>");
+    OS << ' '
+       << PrintReg(Op.getReg(),
+                   AP.MF->getSubtarget().getRegisterInfo())
+       << (Op.isDef() ? "<def>" : "<kill>");
   }
   AP.OutStreamer->AddComment(Str);
   AP.OutStreamer->AddBlankLine();
@@ -811,7 +819,7 @@ static bool emitDebugValueComment(const MachineInstr *MI, AsmPrinter &AP) {
     }
     if (Deref)
       OS << '[';
-    OS << AP.MMI->getContext().getRegisterInfo()->getName(Reg);
+    OS << PrintReg(Reg, AP.MF->getSubtarget().getRegisterInfo());
   }
 
   if (Deref)

diff --git a/test/CodeGen/AMDGPU/llvm.dbg.value.ll b/test/CodeGen/AMDGPU/llvm.dbg.value.ll
index a54c48b25f8e0fa7ac0c8a65dd3e207c1ec62925..c5aba2b76b89081798432328fb97215b71a9f228 100644 (file)
--- a/test/CodeGen/AMDGPU/llvm.dbg.value.ll
+++ b/test/CodeGen/AMDGPU/llvm.dbg.value.ll
@@ -2,7 +2,7 @@
 
 ; CHECK-LABEL: {{^}}test_debug_value:
 ; CHECK: s_load_dwordx2
-; CHECK: DEBUG_VALUE: test_debug_value:globalptr_arg <- SGPR0_SGPR1
+; CHECK: DEBUG_VALUE: test_debug_value:globalptr_arg <- %SGPR0_SGPR1
 ; CHECK: buffer_store_dword
 ; CHECK: s_endpgm
 define void @test_debug_value(i32 addrspace(1)* nocapture %globalptr_arg) #0 !dbg !4 {

diff --git a/test/CodeGen/ARM/debug-info-arg.ll b/test/CodeGen/ARM/debug-info-arg.ll
index 02bd585b354b7a72d8b198e69055f46edabc6fd1..bf7e7321ae3d2fc6420e7b4da08dc55fd7022b47 100644 (file)
--- a/test/CodeGen/ARM/debug-info-arg.ll
+++ b/test/CodeGen/ARM/debug-info-arg.ll
@@ -11,7 +11,7 @@ define void @foo(%struct.tag_s* nocapture %this, %struct.tag_s* %c, i64 %x, i64
   tail call void @llvm.dbg.value(metadata %struct.tag_s* %c, i64 0, metadata !13, metadata !DIExpression()), !dbg !21
   tail call void @llvm.dbg.value(metadata i64 %x, i64 0, metadata !14, metadata !DIExpression()), !dbg !22
   tail call void @llvm.dbg.value(metadata i64 %y, i64 0, metadata !17, metadata !DIExpression()), !dbg !23
-;CHECK:        @DEBUG_VALUE: foo:y <- [R7+8]
+;CHECK:        @DEBUG_VALUE: foo:y <- [%R7+8]
   tail call void @llvm.dbg.value(metadata %struct.tag_s* %ptr1, i64 0, metadata !18, metadata !DIExpression()), !dbg !24
   tail call void @llvm.dbg.value(metadata %struct.tag_s* %ptr2, i64 0, metadata !19, metadata !DIExpression()), !dbg !25
   %1 = icmp eq %struct.tag_s* %c, null, !dbg !26

diff --git a/test/CodeGen/ARM/debug-info-blocks.ll b/test/CodeGen/ARM/debug-info-blocks.ll
index 2e68b04dc5ca7d06edd8213482f80ec61a4ccf35..2a8898651f0de3de2bc87dfbc858a25cd71d0617 100644 (file)
--- a/test/CodeGen/ARM/debug-info-blocks.ll
+++ b/test/CodeGen/ARM/debug-info-blocks.ll
@@ -1,5 +1,5 @@
 ; RUN: llc -O0 < %s | FileCheck %s
-; CHECK: @DEBUG_VALUE: foobar_func_block_invoke_0:mydata <- [SP+{{[0-9]+}}]
+; CHECK: @DEBUG_VALUE: foobar_func_block_invoke_0:mydata <- [%SP+{{[0-9]+}}]
 ; Radar 9331779
 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
 target triple = "thumbv7-apple-ios"

diff --git a/test/CodeGen/ARM/debug-info-branch-folding.ll b/test/CodeGen/ARM/debug-info-branch-folding.ll
index ca4d8a3dabb48d6e757fcf5731ecb1498a4bda75..b9d110e42cd40daa9d5444c565bc41a06c2351a5 100644 (file)
--- a/test/CodeGen/ARM/debug-info-branch-folding.ll
+++ b/test/CodeGen/ARM/debug-info-branch-folding.ll
@@ -6,8 +6,8 @@ target triple = "thumbv7-apple-macosx10.6.7"
 ;CHECK-NEXT: Ltmp1
 ;CHECK-NEXT: LBB0_1
 
-;CHECK:@DEBUG_VALUE: x <- Q4{{$}}
-;CHECK-NEXT:@DEBUG_VALUE: y <- Q4{{$}}
+;CHECK:@DEBUG_VALUE: x <- %Q4{{$}}
+;CHECK-NEXT:@DEBUG_VALUE: y <- %Q4{{$}}
 
 
 @.str = external constant [13 x i8]

diff --git a/test/CodeGen/BPF/sockex2.ll b/test/CodeGen/BPF/sockex2.ll
index 2e571ef6f465788b493c2a521c8ece99858d1603..b3e83eadf537d928078120c72577df17febdf4d7 100644 (file)
--- a/test/CodeGen/BPF/sockex2.ll
+++ b/test/CodeGen/BPF/sockex2.ll
@@ -311,7 +311,7 @@ flow_dissector.exit.thread:                       ; preds = %86, %12, %196, %199
 ; CHECK-LABEL: bpf_prog2:
 ; CHECK: ldabs_h r0, r6.data + 12 # encoding: [0x28,0x00,0x00,0x00,0x0c,0x00,0x00,0x00]
 ; CHECK: ldabs_h r0, r6.data + 16 # encoding: [0x28,0x00,0x00,0x00,0x10,0x00,0x00,0x00]
-; CHECK: implicit-def: R1
+; CHECK: implicit-def: %R1
 ; CHECK: ld_64   r1
 ; CHECK-NOT: ori
 ; CHECK: call 1 # encoding: [0x85,0x00,0x00,0x00,0x01,0x00,0x00,0x00]

diff --git a/test/CodeGen/Mips/llvm-ir/call.ll b/test/CodeGen/Mips/llvm-ir/call.ll
index 6c4f08daee97d727e05994da589af7ba1337b825..22a44da0b069690b98d563e7e58a6e8277211515 100644 (file)
--- a/test/CodeGen/Mips/llvm-ir/call.ll
+++ b/test/CodeGen/Mips/llvm-ir/call.ll
@@ -176,8 +176,8 @@ declare hidden void @undef_double(i32 %this, double %volume) unnamed_addr align
 
 define hidden void @thunk_undef_double(i32 %this, double %volume) unnamed_addr align 2 {
 ; ALL-LABEL: thunk_undef_double:
-; O32: # implicit-def: A2
-; O32: # implicit-def: A3
+; O32: # implicit-def: %A2
+; O32: # implicit-def: %A3
 ; ALL: jr $25
   tail call void @undef_double(i32 undef, double undef) #8
   ret void

diff --git a/test/CodeGen/X86/2010-05-28-Crash.ll b/test/CodeGen/X86/2010-05-28-Crash.ll
index 80118331be0087dacaa0b195f7fb24a425c54e1b..678f1befad1d12ad9dc310fdad399dfd7a10c9ec 100644 (file)
--- a/test/CodeGen/X86/2010-05-28-Crash.ll
+++ b/test/CodeGen/X86/2010-05-28-Crash.ll
@@ -46,7 +46,7 @@ entry:
 !18 = !DIFile(filename: "f.c", directory: "/tmp")
 !19 = !{}
 
-;CHECK: DEBUG_VALUE: bar:x <- E
+;CHECK: DEBUG_VALUE: bar:x <- %E
 ;CHECK: Ltmp
 ;CHECK:        DEBUG_VALUE: foo:y <- 1{{$}}
 !20 = !{i32 1, !"Debug Info Version", i32 3}

diff --git a/test/CodeGen/X86/2010-06-01-DeadArg-DbgInfo.ll b/test/CodeGen/X86/2010-06-01-DeadArg-DbgInfo.ll
index 71e16a90c9d14124c0e91c47044c58fa7d95a286..1be800cdfcf061c938366c1af64c89ae46e006dc 100644 (file)
--- a/test/CodeGen/X86/2010-06-01-DeadArg-DbgInfo.ll
+++ b/test/CodeGen/X86/2010-06-01-DeadArg-DbgInfo.ll
@@ -8,7 +8,7 @@ target triple = "x86_64-apple-darwin10.2"
 @llvm.used = appending global [1 x i8*] [i8* bitcast (i32 (%struct.foo*, i32)* @_ZN3foo3bazEi to i8*)], section "llvm.metadata" ; <[1 x i8*]*> [#uses=0]
 
 define i32 @_ZN3foo3bazEi(%struct.foo* nocapture %this, i32 %x) nounwind readnone optsize noinline ssp align 2 !dbg !8 {
-;CHECK: DEBUG_VALUE: baz:this <- RDI{{$}}
+;CHECK: DEBUG_VALUE: baz:this <- %RDI{{$}}
 entry:
   tail call void @llvm.dbg.value(metadata %struct.foo* %this, i64 0, metadata !15, metadata !DIExpression()), !dbg !DILocation(scope: !8)
   tail call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !16, metadata !DIExpression()), !dbg !DILocation(scope: !8)