1 files changed, 175 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/subreg-postra-2.ll b/test/CodeGen/PowerPC/subreg-postra-2.ll
new file mode 100644
index 0000000..2faaa61
--- /dev/null
+++ b/test/CodeGen/PowerPC/subreg-postra-2.ll
@@ -0,0 +1,175 @@
+; RUN: llc -mcpu=pwr7 < %s | FileCheck %s
+target datalayout = "E-m:e-i64:64-n32:64"
+target triple = "powerpc64-unknown-linux-gnu"
+
+; Function Attrs: nounwind
+define void @jbd2_journal_commit_transaction() #0 {
+entry:
+  br i1 undef, label %do.body, label %if.then5
+
+if.then5:                                         ; preds = %entry
+  unreachable
+
+do.body:                                          ; preds = %entry
+  br i1 undef, label %do.body.i, label %trace_jbd2_start_commit.exit
+
+do.body.i:                                        ; preds = %do.body
+  unreachable
+
+trace_jbd2_start_commit.exit:                     ; preds = %do.body
+  br i1 undef, label %do.body.i1116, label %trace_jbd2_commit_locking.exit
+
+do.body.i1116:                                    ; preds = %trace_jbd2_start_commit.exit
+  unreachable
+
+trace_jbd2_commit_locking.exit:                   ; preds = %trace_jbd2_start_commit.exit
+  br i1 undef, label %while.end, label %while.body.lr.ph
+
+while.body.lr.ph:                                 ; preds = %trace_jbd2_commit_locking.exit
+  unreachable
+
+while.end:                                        ; preds = %trace_jbd2_commit_locking.exit
+  br i1 undef, label %spin_unlock.exit1146, label %if.then.i.i.i.i1144
+
+if.then.i.i.i.i1144:                              ; preds = %while.end
+  unreachable
+
+spin_unlock.exit1146:                             ; preds = %while.end
+  br i1 undef, label %spin_unlock.exit1154, label %if.then.i.i.i.i1152
+
+if.then.i.i.i.i1152:                              ; preds = %spin_unlock.exit1146
+  unreachable
+
+spin_unlock.exit1154:                             ; preds = %spin_unlock.exit1146
+  br i1 undef, label %do.body.i1159, label %trace_jbd2_commit_flushing.exit
+
+do.body.i1159:                                    ; preds = %spin_unlock.exit1154
+  br i1 undef, label %if.end.i1166, label %do.body5.i1165
+
+do.body5.i1165:                                   ; preds = %do.body.i1159
+  unreachable
+
+if.end.i1166:                                     ; preds = %do.body.i1159
+  unreachable
+
+trace_jbd2_commit_flushing.exit:                  ; preds = %spin_unlock.exit1154
+  br i1 undef, label %for.end.i, label %for.body.lr.ph.i
+
+for.body.lr.ph.i:                                 ; preds = %trace_jbd2_commit_flushing.exit
+  unreachable
+
+for.end.i:                                        ; preds = %trace_jbd2_commit_flushing.exit
+  br i1 undef, label %journal_submit_data_buffers.exit, label %if.then.i.i.i.i31.i
+
+if.then.i.i.i.i31.i:                              ; preds = %for.end.i
+  br label %journal_submit_data_buffers.exit
+
+journal_submit_data_buffers.exit:                 ; preds = %if.then.i.i.i.i31.i, %for.end.i
+  br i1 undef, label %if.end103, label %if.then102
+
+if.then102:                                       ; preds = %journal_submit_data_buffers.exit
+  unreachable
+
+if.end103:                                        ; preds = %journal_submit_data_buffers.exit
+  br i1 undef, label %do.body.i1182, label %trace_jbd2_commit_logging.exit
+
+do.body.i1182:                                    ; preds = %if.end103
+  br i1 undef, label %if.end.i1189, label %do.body5.i1188
+
+do.body5.i1188:                                   ; preds = %do.body5.i1188, %do.body.i1182
+  br i1 undef, label %if.end.i1189, label %do.body5.i1188
+
+if.end.i1189:                                     ; preds = %do.body5.i1188, %do.body.i1182
+  unreachable
+
+trace_jbd2_commit_logging.exit:                   ; preds = %if.end103
+  br label %while.cond129.outer1451
+
+while.cond129.outer1451:                          ; preds = %start_journal_io, %trace_jbd2_commit_logging.exit
+  br label %while.cond129
+
+while.cond129:                                    ; preds = %if.then135, %while.cond129.outer1451
+  br i1 undef, label %while.end246, label %if.then135
+
+if.then135:                                       ; preds = %while.cond129
+  br i1 undef, label %start_journal_io, label %while.cond129
+
+start_journal_io:                                 ; preds = %if.then135
+  br label %while.cond129.outer1451
+
+while.end246:                                     ; preds = %while.cond129
+  br i1 undef, label %for.end.i1287, label %for.body.i1277
+
+for.body.i1277:                                   ; preds = %while.end246
+  unreachable
+
+for.end.i1287:                                    ; preds = %while.end246
+  br i1 undef, label %journal_finish_inode_data_buffers.exit, label %if.then.i.i.i.i84.i
+
+if.then.i.i.i.i84.i:                              ; preds = %for.end.i1287
+  unreachable
+
+journal_finish_inode_data_buffers.exit:           ; preds = %for.end.i1287
+  br i1 undef, label %if.end256, label %if.then249
+
+if.then249:                                       ; preds = %journal_finish_inode_data_buffers.exit
+  unreachable
+
+if.end256:                                        ; preds = %journal_finish_inode_data_buffers.exit
+  br label %while.body318
+
+while.body318:                                    ; preds = %wait_on_buffer.exit, %if.end256
+  br i1 undef, label %wait_on_buffer.exit, label %if.then.i1296
+
+if.then.i1296:                                    ; preds = %while.body318
+  br label %wait_on_buffer.exit
+
+wait_on_buffer.exit:                              ; preds = %if.then.i1296, %while.body318
+  br i1 undef, label %do.body378, label %while.body318
+
+do.body378:                                       ; preds = %wait_on_buffer.exit
+  br i1 undef, label %while.end418, label %while.body392.lr.ph
+
+while.body392.lr.ph:                              ; preds = %do.body378
+  br label %while.body392
+
+while.body392:                                    ; preds = %wait_on_buffer.exit1319, %while.body392.lr.ph
+  %0 = load i8** undef, align 8
+  %add.ptr399 = getelementptr inbounds i8* %0, i64 -72
+  %b_state.i.i1314 = bitcast i8* %add.ptr399 to i64*
+  %tobool.i1316 = icmp eq i64 undef, 0
+  br i1 %tobool.i1316, label %wait_on_buffer.exit1319, label %if.then.i1317
+
+if.then.i1317:                                    ; preds = %while.body392
+  unreachable
+
+wait_on_buffer.exit1319:                          ; preds = %while.body392
+  %1 = load volatile i64* %b_state.i.i1314, align 8
+  %conv.i.i1322 = and i64 %1, 1
+  %lnot404 = icmp eq i64 %conv.i.i1322, 0
+  %.err.4 = select i1 %lnot404, i32 -5, i32 undef
+  %2 = call i64 asm sideeffect "1:.long 0x7c0000a8 $| ((($0) & 0x1f) << 21) $| (((0) & 0x1f) << 16) $| ((($3) & 0x1f) << 11) $| (((0) & 0x1) << 0) \0Aandc $0,$0,$2\0Astdcx. $0,0,$3\0Abne- 1b\0A", "=&r,=*m,r,r,*m,~{cc},~{memory}"(i64* %b_state.i.i1314, i64 262144, i64* %b_state.i.i1314, i64* %b_state.i.i1314) #0
+  store i8* %0, i8** undef, align 8
+  %cmp.i1312 = icmp eq i32* undef, undef
+  br i1 %cmp.i1312, label %while.end418, label %while.body392
+
+while.end418:                                     ; preds = %wait_on_buffer.exit1319, %do.body378
+  %err.4.lcssa = phi i32 [ undef, %do.body378 ], [ %.err.4, %wait_on_buffer.exit1319 ]
+  %tobool419 = icmp eq i32 %err.4.lcssa, 0
+  br i1 %tobool419, label %if.end421, label %if.then420
+
+; CHECK-LABEL: @jbd2_journal_commit_transaction
+; CHECK: andi.
+; CHECK: cror [[REG:[0-9]+]], 1, 1
+; CHECK: stdcx.
+; CHECK: isel {{[0-9]+}}, {{[0-9]+}}, {{[0-9]+}}, [[REG]]
+
+if.then420:                                       ; preds = %while.end418
+  unreachable
+
+if.end421:                                        ; preds = %while.end418
+  unreachable
+}
+
+attributes #0 = { nounwind }
+