Fix PR 7433. Silly typo in non-Darwin ARM tail call

handling, plus correct R9 handling in that mode.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106434 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 145 insertions, 0 deletions

diff --git a/test/CodeGen/ARM/2010-06-21-nondarwin-tc.ll b/test/CodeGen/ARM/2010-06-21-nondarwin-tc.ll
new file mode 100755
index 0000000..2e18154
--- /dev/null
+++ b/test/CodeGen/ARM/2010-06-21-nondarwin-tc.ll
@@ -0,0 +1,145 @@
+; RUN: llc < %s -march=arm -mtriple=armv4t-unknown-linux-gnueabi
+; PR 7433
+
+%0 = type { i8*, i8* }
+%1 = type { i8*, i8*, i8* }
+%"class.llvm::Record" = type { i32, %"class.std::basic_string", %"class.llvm::SMLoc", %"class.std::vector", %"class.std::vector", %"class.std::vector" }
+%"class.llvm::RecordVal" = type { %"class.std::basic_string", %"struct.llvm::Init"*, i32, %"struct.llvm::Init"* }
+%"class.llvm::SMLoc" = type { i8* }
+%"class.llvm::StringInit" = type { [8 x i8], %"class.std::basic_string" }
+%"class.std::basic_string" = type { %"class.llvm::SMLoc" }
+%"class.std::vector" = type { [12 x i8] }
+%"struct.llvm::Init" = type { i32 (...)** }
+
+@_ZTIN4llvm5RecTyE = external constant %0         ; <%0*> [#uses=1]
+@_ZTIN4llvm4InitE = external constant %0          ; <%0*> [#uses=1]
+@_ZTIN4llvm11RecordRecTyE = external constant %1  ; <%1*> [#uses=1]
+@.str8 = external constant [47 x i8]              ; <[47 x i8]*> [#uses=1]
+@_ZTIN4llvm9UnsetInitE = external constant %1     ; <%1*> [#uses=1]
+@.str51 = external constant [45 x i8]             ; <[45 x i8]*> [#uses=1]
+@__PRETTY_FUNCTION__._ZNK4llvm7VarInit12getFieldInitERNS_6RecordEPKNS_9RecordValERKSs = external constant [116 x i8] ; <[116 x i8]*> [#uses=1]
+
+@_ZN4llvm9RecordValC1ERKSsPNS_5RecTyEj = alias void (%"class.llvm::RecordVal"*, %"class.std::basic_string"*, %"struct.llvm::Init"*, i32)* @_ZN4llvm9RecordValC2ERKSsPNS_5RecTyEj ; <void (%"class.llvm::RecordVal"*, %"class.std::basic_string"*, %"struct.llvm::Init"*, i32)*> [#uses=0]
+
+declare i8* @__dynamic_cast(i8*, i8*, i8*, i32)
+
+declare void @__assert_fail(i8*, i8*, i32, i8*) noreturn
+
+declare void @_ZN4llvm9RecordValC2ERKSsPNS_5RecTyEj(%"class.llvm::RecordVal"*, %"class.std::basic_string"*, %"struct.llvm::Init"*, i32) align 2
+
+define %"struct.llvm::Init"* @_ZNK4llvm7VarInit12getFieldInitERNS_6RecordEPKNS_9RecordValERKSs(%"class.llvm::StringInit"* %this, %"class.llvm::Record"* %R, %"class.llvm::RecordVal"* %RV, %"class.std::basic_string"* %FieldName) align 2 {
+;CHECK:  ldmia sp!, {r4, r5, r6, r7, r8, lr}
+;CHECK:  bx  r12  @ TAILCALL
+entry:
+  %.loc = alloca i32                              ; <i32*> [#uses=2]
+  %tmp.i = getelementptr inbounds %"class.llvm::StringInit"* %this, i32 0, i32 0, i32 4 ; <i8*> [#uses=1]
+  %0 = bitcast i8* %tmp.i to %"struct.llvm::Init"** ; <%"struct.llvm::Init"**> [#uses=1]
+  %tmp2.i = load %"struct.llvm::Init"** %0        ; <%"struct.llvm::Init"*> [#uses=2]
+  %1 = icmp eq %"struct.llvm::Init"* %tmp2.i, null ; <i1> [#uses=1]
+  br i1 %1, label %entry.return_crit_edge, label %tmpbb
+
+entry.return_crit_edge:                           ; preds = %entry
+  br label %return
+
+tmpbb:                                            ; preds = %entry
+  %2 = bitcast %"struct.llvm::Init"* %tmp2.i to i8* ; <i8*> [#uses=1]
+  %3 = tail call i8* @__dynamic_cast(i8* %2, i8* bitcast (%0* @_ZTIN4llvm5RecTyE to i8*), i8* bitcast (%1* @_ZTIN4llvm11RecordRecTyE to i8*), i32 -1) ; <i8*> [#uses=1]
+  %phitmp = icmp eq i8* %3, null                  ; <i1> [#uses=1]
+  br i1 %phitmp, label %.return_crit_edge, label %if.then
+
+.return_crit_edge:                                ; preds = %tmpbb
+  br label %return
+
+if.then:                                          ; preds = %tmpbb
+  %tmp2.i.i.i.i = getelementptr inbounds %"class.llvm::StringInit"* %this, i32 0, i32 1, i32 0, i32 0 ; <i8**> [#uses=1]
+  %tmp3.i.i.i.i = load i8** %tmp2.i.i.i.i         ; <i8*> [#uses=2]
+  %arrayidx.i.i.i.i = getelementptr inbounds i8* %tmp3.i.i.i.i, i32 -12 ; <i8*> [#uses=1]
+  %tmp.i.i.i = bitcast i8* %arrayidx.i.i.i.i to i32* ; <i32*> [#uses=1]
+  %tmp2.i.i.i = load i32* %tmp.i.i.i              ; <i32> [#uses=1]
+  %tmp.i5 = getelementptr inbounds %"class.llvm::Record"* %R, i32 0, i32 4 ; <%"class.std::vector"*> [#uses=1]
+  %tmp2.i.i = getelementptr inbounds %"class.llvm::Record"* %R, i32 0, i32 4, i32 0, i32 4 ; <i8*> [#uses=1]
+  %4 = bitcast i8* %tmp2.i.i to %"class.llvm::RecordVal"** ; <%"class.llvm::RecordVal"**> [#uses=1]
+  %tmp3.i.i6 = load %"class.llvm::RecordVal"** %4 ; <%"class.llvm::RecordVal"*> [#uses=1]
+  %tmp5.i.i = bitcast %"class.std::vector"* %tmp.i5 to %"class.llvm::RecordVal"** ; <%"class.llvm::RecordVal"**> [#uses=1]
+  %tmp6.i.i = load %"class.llvm::RecordVal"** %tmp5.i.i ; <%"class.llvm::RecordVal"*> [#uses=5]
+  %sub.ptr.lhs.cast.i.i = ptrtoint %"class.llvm::RecordVal"* %tmp3.i.i6 to i32 ; <i32> [#uses=1]
+  %sub.ptr.rhs.cast.i.i = ptrtoint %"class.llvm::RecordVal"* %tmp6.i.i to i32 ; <i32> [#uses=1]
+  %sub.ptr.sub.i.i = sub i32 %sub.ptr.lhs.cast.i.i, %sub.ptr.rhs.cast.i.i ; <i32> [#uses=1]
+  %sub.ptr.div.i.i = ashr i32 %sub.ptr.sub.i.i, 4 ; <i32> [#uses=1]
+  br label %codeRepl
+
+codeRepl:                                         ; preds = %if.then
+  %targetBlock = call i1 @_ZNK4llvm7VarInit12getFieldInitERNS_6RecordEPKNS_9RecordValERKSs_for.cond.i(i32 %sub.ptr.div.i.i, %"class.llvm::RecordVal"* %tmp6.i.i, i32 %tmp2.i.i.i, i8* %tmp3.i.i.i.i, i32* %.loc) ; <i1> [#uses=1]
+  %.reload = load i32* %.loc                      ; <i32> [#uses=3]
+  br i1 %targetBlock, label %for.cond.i.return_crit_edge, label %_ZN4llvm6Record8getValueENS_9StringRefE.exit
+
+for.cond.i.return_crit_edge:                      ; preds = %codeRepl
+  br label %return
+
+_ZN4llvm6Record8getValueENS_9StringRefE.exit:     ; preds = %codeRepl
+  %add.ptr.i.i = getelementptr inbounds %"class.llvm::RecordVal"* %tmp6.i.i, i32 %.reload ; <%"class.llvm::RecordVal"*> [#uses=2]
+  %tobool5 = icmp eq %"class.llvm::RecordVal"* %add.ptr.i.i, null ; <i1> [#uses=1]
+  br i1 %tobool5, label %_ZN4llvm6Record8getValueENS_9StringRefE.exit.return_crit_edge, label %if.then6
+
+_ZN4llvm6Record8getValueENS_9StringRefE.exit.return_crit_edge: ; preds = %_ZN4llvm6Record8getValueENS_9StringRefE.exit
+  br label %return
+
+if.then6:                                         ; preds = %_ZN4llvm6Record8getValueENS_9StringRefE.exit
+  %cmp = icmp eq %"class.llvm::RecordVal"* %add.ptr.i.i, %RV ; <i1> [#uses=1]
+  br i1 %cmp, label %if.then6.if.end_crit_edge, label %land.lhs.true
+
+if.then6.if.end_crit_edge:                        ; preds = %if.then6
+  br label %if.end
+
+land.lhs.true:                                    ; preds = %if.then6
+  %tobool10 = icmp eq %"class.llvm::RecordVal"* %RV, null ; <i1> [#uses=1]
+  br i1 %tobool10, label %lor.lhs.false, label %land.lhs.true.return_crit_edge
+
+land.lhs.true.return_crit_edge:                   ; preds = %land.lhs.true
+  br label %return
+
+lor.lhs.false:                                    ; preds = %land.lhs.true
+  %tmp.i3 = getelementptr inbounds %"class.llvm::RecordVal"* %tmp6.i.i, i32 %.reload, i32 3 ; <%"struct.llvm::Init"**> [#uses=1]
+  %tmp2.i4 = load %"struct.llvm::Init"** %tmp.i3  ; <%"struct.llvm::Init"*> [#uses=2]
+  %5 = icmp eq %"struct.llvm::Init"* %tmp2.i4, null ; <i1> [#uses=1]
+  br i1 %5, label %lor.lhs.false.if.end_crit_edge, label %tmpbb1
+
+lor.lhs.false.if.end_crit_edge:                   ; preds = %lor.lhs.false
+  br label %if.end
+
+tmpbb1:                                           ; preds = %lor.lhs.false
+  %6 = bitcast %"struct.llvm::Init"* %tmp2.i4 to i8* ; <i8*> [#uses=1]
+  %7 = tail call i8* @__dynamic_cast(i8* %6, i8* bitcast (%0* @_ZTIN4llvm4InitE to i8*), i8* bitcast (%1* @_ZTIN4llvm9UnsetInitE to i8*), i32 -1) ; <i8*> [#uses=1]
+  %phitmp32 = icmp eq i8* %7, null                ; <i1> [#uses=1]
+  br i1 %phitmp32, label %.if.end_crit_edge, label %.return_crit_edge1
+
+.return_crit_edge1:                               ; preds = %tmpbb1
+  br label %return
+
+.if.end_crit_edge:                                ; preds = %tmpbb1
+  br label %if.end
+
+if.end:                                           ; preds = %.if.end_crit_edge, %lor.lhs.false.if.end_crit_edge, %if.then6.if.end_crit_edge
+  %tmp.i1 = getelementptr inbounds %"class.llvm::RecordVal"* %tmp6.i.i, i32 %.reload, i32 3 ; <%"struct.llvm::Init"**> [#uses=1]
+  %tmp2.i2 = load %"struct.llvm::Init"** %tmp.i1  ; <%"struct.llvm::Init"*> [#uses=3]
+  %8 = bitcast %"class.llvm::StringInit"* %this to %"struct.llvm::Init"* ; <%"struct.llvm::Init"*> [#uses=1]
+  %cmp19 = icmp eq %"struct.llvm::Init"* %tmp2.i2, %8 ; <i1> [#uses=1]
+  br i1 %cmp19, label %cond.false, label %cond.end
+
+cond.false:                                       ; preds = %if.end
+  tail call void @__assert_fail(i8* getelementptr inbounds ([45 x i8]* @.str51, i32 0, i32 0), i8* getelementptr inbounds ([47 x i8]* @.str8, i32 0, i32 0), i32 1141, i8* getelementptr inbounds ([116 x i8]* @__PRETTY_FUNCTION__._ZNK4llvm7VarInit12getFieldInitERNS_6RecordEPKNS_9RecordValERKSs, i32 0, i32 0)) noreturn
+  unreachable
+
+cond.end:                                         ; preds = %if.end
+  %9 = bitcast %"struct.llvm::Init"* %tmp2.i2 to %"struct.llvm::Init"* (%"struct.llvm::Init"*, %"class.llvm::Record"*, %"class.llvm::RecordVal"*, %"class.std::basic_string"*)*** ; <%"struct.llvm::Init"* (%"struct.llvm::Init"*, %"class.llvm::Record"*, %"class.llvm::RecordVal"*, %"class.std::basic_string"*)***> [#uses=1]
+  %10 = load %"struct.llvm::Init"* (%"struct.llvm::Init"*, %"class.llvm::Record"*, %"class.llvm::RecordVal"*, %"class.std::basic_string"*)*** %9 ; <%"struct.llvm::Init"* (%"struct.llvm::Init"*, %"class.llvm::Record"*, %"class.llvm::RecordVal"*, %"class.std::basic_string"*)**> [#uses=1]
+  %vfn = getelementptr inbounds %"struct.llvm::Init"* (%"struct.llvm::Init"*, %"class.llvm::Record"*, %"class.llvm::RecordVal"*, %"class.std::basic_string"*)** %10, i32 8 ; <%"struct.llvm::Init"* (%"struct.llvm::Init"*, %"class.llvm::Record"*, %"class.llvm::RecordVal"*, %"class.std::basic_string"*)**> [#uses=1]
+  %11 = load %"struct.llvm::Init"* (%"struct.llvm::Init"*, %"class.llvm::Record"*, %"class.llvm::RecordVal"*, %"class.std::basic_string"*)** %vfn ; <%"struct.llvm::Init"* (%"struct.llvm::Init"*, %"class.llvm::Record"*, %"class.llvm::RecordVal"*, %"class.std::basic_string"*)*> [#uses=1]
+  %call25 = tail call %"struct.llvm::Init"* %11(%"struct.llvm::Init"* %tmp2.i2, %"class.llvm::Record"* %R, %"class.llvm::RecordVal"* %RV, %"class.std::basic_string"* %FieldName) ; <%"struct.llvm::Init"*> [#uses=1]
+  ret %"struct.llvm::Init"* %call25
+
+return:                                           ; preds = %.return_crit_edge1, %land.lhs.true.return_crit_edge, %_ZN4llvm6Record8getValueENS_9StringRefE.exit.return_crit_edge, %for.cond.i.return_crit_edge, %.return_crit_edge, %entry.return_crit_edge
+  ret %"struct.llvm::Init"* null
+}
+
+declare i1 @_ZNK4llvm7VarInit12getFieldInitERNS_6RecordEPKNS_9RecordValERKSs_for.cond.i(i32, %"class.llvm::RecordVal"*, i32, i8*, i32*)