[MIR] Print on the given output instead of stderr.

Currently the MIR framework prints all its outputs (errors and actual
representation) on stderr.

This patch fixes that by printing the regular output in the output
specified with -o.

Differential Revision: http://reviews.llvm.org/D22251

llvm-svn: 275314

46 files changed, 46 insertions, 46 deletions

diff --git a/llvm/test/CodeGen/MIR/X86/basic-block-liveins.mir b/llvm/test/CodeGen/MIR/X86/basic-block-liveins.mir
index 20d2ff30486..a96152fb389 100644
--- a/llvm/test/CodeGen/MIR/X86/basic-block-liveins.mir
+++ b/llvm/test/CodeGen/MIR/X86/basic-block-liveins.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses basic block liveins correctly.
 
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/block-address-operands.mir b/llvm/test/CodeGen/MIR/X86/block-address-operands.mir
index 7af8997070f..d6dadb9775f 100644
--- a/llvm/test/CodeGen/MIR/X86/block-address-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/block-address-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the block address operands
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/callee-saved-info.mir b/llvm/test/CodeGen/MIR/X86/callee-saved-info.mir
index 772d03b0ba5..7870180960f 100644
--- a/llvm/test/CodeGen/MIR/X86/callee-saved-info.mir
+++ b/llvm/test/CodeGen/MIR/X86/callee-saved-info.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after prologepilog -stop-after prologepilog -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after prologepilog -stop-after prologepilog -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses callee saved information in the
 # stack objects correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/cfi-def-cfa-offset.mir b/llvm/test/CodeGen/MIR/X86/cfi-def-cfa-offset.mir
index d143b37d13b..38b94fd8f19 100644
--- a/llvm/test/CodeGen/MIR/X86/cfi-def-cfa-offset.mir
+++ b/llvm/test/CodeGen/MIR/X86/cfi-def-cfa-offset.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the .cfi_def_cfa_offset operands
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/cfi-def-cfa-register.mir b/llvm/test/CodeGen/MIR/X86/cfi-def-cfa-register.mir
index fe2e32c2e96..ead76f6f538 100644
--- a/llvm/test/CodeGen/MIR/X86/cfi-def-cfa-register.mir
+++ b/llvm/test/CodeGen/MIR/X86/cfi-def-cfa-register.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the .cfi_def_cfa_register
 # operands correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/cfi-offset.mir b/llvm/test/CodeGen/MIR/X86/cfi-offset.mir
index 6ad1ac248af..e84a1889756 100644
--- a/llvm/test/CodeGen/MIR/X86/cfi-offset.mir
+++ b/llvm/test/CodeGen/MIR/X86/cfi-offset.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the .cfi_offset operands
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/constant-pool.mir b/llvm/test/CodeGen/MIR/X86/constant-pool.mir
index 31bb7196690..36f15cce6dc 100644
--- a/llvm/test/CodeGen/MIR/X86/constant-pool.mir
+++ b/llvm/test/CodeGen/MIR/X86/constant-pool.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses constant pool constants and
 # constant pool operands correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/dead-register-flag.mir b/llvm/test/CodeGen/MIR/X86/dead-register-flag.mir
index 91c071686b8..7f29b9afcd2 100644
--- a/llvm/test/CodeGen/MIR/X86/dead-register-flag.mir
+++ b/llvm/test/CodeGen/MIR/X86/dead-register-flag.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the 'dead' register flags
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/early-clobber-register-flag.mir b/llvm/test/CodeGen/MIR/X86/early-clobber-register-flag.mir
index 463d17c5595..41492849823 100644
--- a/llvm/test/CodeGen/MIR/X86/early-clobber-register-flag.mir
+++ b/llvm/test/CodeGen/MIR/X86/early-clobber-register-flag.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the 'early-clobber' register
 # flags correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/external-symbol-operands.mir b/llvm/test/CodeGen/MIR/X86/external-symbol-operands.mir
index 231acfae8b9..0ac5bb15f59 100644
--- a/llvm/test/CodeGen/MIR/X86/external-symbol-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/external-symbol-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the external symbol machine
 # operands correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/fixed-stack-memory-operands.mir b/llvm/test/CodeGen/MIR/X86/fixed-stack-memory-operands.mir
index af7d579bd74..50c15914d90 100644
--- a/llvm/test/CodeGen/MIR/X86/fixed-stack-memory-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/fixed-stack-memory-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses fixed stack memory operands
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/fixed-stack-objects.mir b/llvm/test/CodeGen/MIR/X86/fixed-stack-objects.mir
index 15cfdb6c1f5..81272c3549f 100644
--- a/llvm/test/CodeGen/MIR/X86/fixed-stack-objects.mir
+++ b/llvm/test/CodeGen/MIR/X86/fixed-stack-objects.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses fixed stack objects correctly.
 
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/frame-info-save-restore-points.mir b/llvm/test/CodeGen/MIR/X86/frame-info-save-restore-points.mir
index 8477b1f58ed..fbdde2c75cf 100644
--- a/llvm/test/CodeGen/MIR/X86/frame-info-save-restore-points.mir
+++ b/llvm/test/CodeGen/MIR/X86/frame-info-save-restore-points.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -enable-shrink-wrap=true -start-after shrink-wrap -stop-after shrink-wrap -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -enable-shrink-wrap=true -start-after shrink-wrap -stop-after shrink-wrap -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the save and restore points in
 # the machine frame info correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/frame-info-stack-references.mir b/llvm/test/CodeGen/MIR/X86/frame-info-stack-references.mir
index bce371cc253..468e8c3c300 100644
--- a/llvm/test/CodeGen/MIR/X86/frame-info-stack-references.mir
+++ b/llvm/test/CodeGen/MIR/X86/frame-info-stack-references.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the stack protector stack
 # object reference in the machine frame info correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/frame-setup-instruction-flag.mir b/llvm/test/CodeGen/MIR/X86/frame-setup-instruction-flag.mir
index e8718417fc6..11d72d9e31e 100644
--- a/llvm/test/CodeGen/MIR/X86/frame-setup-instruction-flag.mir
+++ b/llvm/test/CodeGen/MIR/X86/frame-setup-instruction-flag.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the frame setup instruction flag.
 
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/function-liveins.mir b/llvm/test/CodeGen/MIR/X86/function-liveins.mir
index 6da44b21552..852cb883c2c 100644
--- a/llvm/test/CodeGen/MIR/X86/function-liveins.mir
+++ b/llvm/test/CodeGen/MIR/X86/function-liveins.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses machine function's liveins
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/generic-virtual-registers.mir b/llvm/test/CodeGen/MIR/X86/generic-virtual-registers.mir
index f3692e75870..9aae07bd044 100644
--- a/llvm/test/CodeGen/MIR/X86/generic-virtual-registers.mir
+++ b/llvm/test/CodeGen/MIR/X86/generic-virtual-registers.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o - %s | FileCheck %s
 # REQUIRES: global-isel
 # This test ensures that the MIR parser parses generic virtual
 # register definitions correctly.
diff --git a/llvm/test/CodeGen/MIR/X86/global-value-operands.mir b/llvm/test/CodeGen/MIR/X86/global-value-operands.mir
index 7287b62393c..b83d8026ce3 100644
--- a/llvm/test/CodeGen/MIR/X86/global-value-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/global-value-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses global value operands correctly.
 
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/immediate-operands.mir b/llvm/test/CodeGen/MIR/X86/immediate-operands.mir
index 2f4c4421a90..664debe1f92 100644
--- a/llvm/test/CodeGen/MIR/X86/immediate-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/immediate-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses immediate machine operands.
 
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/implicit-register-flag.mir b/llvm/test/CodeGen/MIR/X86/implicit-register-flag.mir
index 83e2ddef89d..5f68ffd0f0e 100644
--- a/llvm/test/CodeGen/MIR/X86/implicit-register-flag.mir
+++ b/llvm/test/CodeGen/MIR/X86/implicit-register-flag.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the 'implicit' and 'implicit-def'
 # register flags correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/inline-asm-registers.mir b/llvm/test/CodeGen/MIR/X86/inline-asm-registers.mir
index 5198511417c..6c6664ba552 100644
--- a/llvm/test/CodeGen/MIR/X86/inline-asm-registers.mir
+++ b/llvm/test/CodeGen/MIR/X86/inline-asm-registers.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after block-placement -stop-after block-placement -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after block-placement -stop-after block-placement -o - %s | FileCheck %s
 
 --- |
   define i64 @test(i64 %x, i64 %y) #0 {
diff --git a/llvm/test/CodeGen/MIR/X86/instructions-debug-location.mir b/llvm/test/CodeGen/MIR/X86/instructions-debug-location.mir
index 53f11ec37ff..478f02dfa73 100644
--- a/llvm/test/CodeGen/MIR/X86/instructions-debug-location.mir
+++ b/llvm/test/CodeGen/MIR/X86/instructions-debug-location.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the machine instruction's
 # debug location metadata correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/jump-table-info.mir b/llvm/test/CodeGen/MIR/X86/jump-table-info.mir
index cc6188d62af..5d1438eebff 100644
--- a/llvm/test/CodeGen/MIR/X86/jump-table-info.mir
+++ b/llvm/test/CodeGen/MIR/X86/jump-table-info.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the jump table info and jump
 # table operands correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/killed-register-flag.mir b/llvm/test/CodeGen/MIR/X86/killed-register-flag.mir
index 50e7eff6de3..71337a50f2d 100644
--- a/llvm/test/CodeGen/MIR/X86/killed-register-flag.mir
+++ b/llvm/test/CodeGen/MIR/X86/killed-register-flag.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the 'killed' register flags
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/liveout-register-mask.mir b/llvm/test/CodeGen/MIR/X86/liveout-register-mask.mir
index 06c821b7edd..47ff233a492 100644
--- a/llvm/test/CodeGen/MIR/X86/liveout-register-mask.mir
+++ b/llvm/test/CodeGen/MIR/X86/liveout-register-mask.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after stackmap-liveness -stop-after stackmap-liveness -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after stackmap-liveness -stop-after stackmap-liveness -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the liveout register mask
 # machine operands correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/machine-basic-block-operands.mir b/llvm/test/CodeGen/MIR/X86/machine-basic-block-operands.mir
index 99258a95d67..d49049b8e2c 100644
--- a/llvm/test/CodeGen/MIR/X86/machine-basic-block-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/machine-basic-block-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses machine basic block operands.
 
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/machine-instructions.mir b/llvm/test/CodeGen/MIR/X86/machine-instructions.mir
index 3b0890ed1c3..a01d9e6945a 100644
--- a/llvm/test/CodeGen/MIR/X86/machine-instructions.mir
+++ b/llvm/test/CodeGen/MIR/X86/machine-instructions.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses X86 machine instructions
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/memory-operands.mir b/llvm/test/CodeGen/MIR/X86/memory-operands.mir
index 38846933b93..3078666ad03 100644
--- a/llvm/test/CodeGen/MIR/X86/memory-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/memory-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the machine memory operands
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/metadata-operands.mir b/llvm/test/CodeGen/MIR/X86/metadata-operands.mir
index 0ee25dd830a..691daab3783 100644
--- a/llvm/test/CodeGen/MIR/X86/metadata-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/metadata-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the metadata machine operands
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/named-registers.mir b/llvm/test/CodeGen/MIR/X86/named-registers.mir
index e2dd8147055..b3f8c28de1b 100644
--- a/llvm/test/CodeGen/MIR/X86/named-registers.mir
+++ b/llvm/test/CodeGen/MIR/X86/named-registers.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses X86 registers correctly.
 
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/newline-handling.mir b/llvm/test/CodeGen/MIR/X86/newline-handling.mir
index 6e8154003ff..942eb41d7c8 100644
--- a/llvm/test/CodeGen/MIR/X86/newline-handling.mir
+++ b/llvm/test/CodeGen/MIR/X86/newline-handling.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 
 --- |
 
diff --git a/llvm/test/CodeGen/MIR/X86/null-register-operands.mir b/llvm/test/CodeGen/MIR/X86/null-register-operands.mir
index 6672fd03547..371555a56b4 100644
--- a/llvm/test/CodeGen/MIR/X86/null-register-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/null-register-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses null register operands correctly.
 
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/register-mask-operands.mir b/llvm/test/CodeGen/MIR/X86/register-mask-operands.mir
index 3b01e58d661..c6edd7ae368 100644
--- a/llvm/test/CodeGen/MIR/X86/register-mask-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/register-mask-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses register mask operands correctly.
 
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/simple-register-allocation-hints.mir b/llvm/test/CodeGen/MIR/X86/simple-register-allocation-hints.mir
index 6ed7709ac44..7dcdcd0ed93 100644
--- a/llvm/test/CodeGen/MIR/X86/simple-register-allocation-hints.mir
+++ b/llvm/test/CodeGen/MIR/X86/simple-register-allocation-hints.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after machine-scheduler -stop-after machine-scheduler -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after machine-scheduler -stop-after machine-scheduler -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses simple register allocation hints
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/spill-slot-fixed-stack-objects.mir b/llvm/test/CodeGen/MIR/X86/spill-slot-fixed-stack-objects.mir
index b7fb4e0a2bc..9dd3588ea10 100644
--- a/llvm/test/CodeGen/MIR/X86/spill-slot-fixed-stack-objects.mir
+++ b/llvm/test/CodeGen/MIR/X86/spill-slot-fixed-stack-objects.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses fixed stack objects correctly.
 
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/stack-object-debug-info.mir b/llvm/test/CodeGen/MIR/X86/stack-object-debug-info.mir
index 54f4e822b5f..32aed3a3286 100644
--- a/llvm/test/CodeGen/MIR/X86/stack-object-debug-info.mir
+++ b/llvm/test/CodeGen/MIR/X86/stack-object-debug-info.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the stack object's debug info
 # correctly.
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/stack-object-operands.mir b/llvm/test/CodeGen/MIR/X86/stack-object-operands.mir
index 050cde77b66..97d38647427 100644
--- a/llvm/test/CodeGen/MIR/X86/stack-object-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/stack-object-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86 -start-after machine-sink -stop-after machine-sink -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses stack object machine operands
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/stack-objects.mir b/llvm/test/CodeGen/MIR/X86/stack-objects.mir
index 7e2bcd2eeeb..67a1742a854 100644
--- a/llvm/test/CodeGen/MIR/X86/stack-objects.mir
+++ b/llvm/test/CodeGen/MIR/X86/stack-objects.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses stack objects correctly.
 
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/subregister-index-operands.mir b/llvm/test/CodeGen/MIR/X86/subregister-index-operands.mir
index 823fcd582df..12eeb3db28b 100644
--- a/llvm/test/CodeGen/MIR/X86/subregister-index-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/subregister-index-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses and prints subregisters index
 # operands correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/subregister-operands.mir b/llvm/test/CodeGen/MIR/X86/subregister-operands.mir
index a02af765e6a..f7168a67e6b 100644
--- a/llvm/test/CodeGen/MIR/X86/subregister-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/subregister-operands.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses subregisters in register operands
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/successor-basic-blocks-weights.mir b/llvm/test/CodeGen/MIR/X86/successor-basic-blocks-weights.mir
index d8ce8363cf0..d33dd45450f 100644
--- a/llvm/test/CodeGen/MIR/X86/successor-basic-blocks-weights.mir
+++ b/llvm/test/CodeGen/MIR/X86/successor-basic-blocks-weights.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses basic block successors and
 # probabilities correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/successor-basic-blocks.mir b/llvm/test/CodeGen/MIR/X86/successor-basic-blocks.mir
index 655019ba017..3293aeb233c 100644
--- a/llvm/test/CodeGen/MIR/X86/successor-basic-blocks.mir
+++ b/llvm/test/CodeGen/MIR/X86/successor-basic-blocks.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses basic block successors correctly.
 
 --- |
diff --git a/llvm/test/CodeGen/MIR/X86/undef-register-flag.mir b/llvm/test/CodeGen/MIR/X86/undef-register-flag.mir
index 03af0272c16..f6584768f7c 100644
--- a/llvm/test/CodeGen/MIR/X86/undef-register-flag.mir
+++ b/llvm/test/CodeGen/MIR/X86/undef-register-flag.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the 'undef' register flags
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/used-physical-register-info.mir b/llvm/test/CodeGen/MIR/X86/used-physical-register-info.mir
index 05bb0895585..c30c53e7e8f 100644
--- a/llvm/test/CodeGen/MIR/X86/used-physical-register-info.mir
+++ b/llvm/test/CodeGen/MIR/X86/used-physical-register-info.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses the callee saved register mask
 # correctly and that the MIR parser can infer it as well.
 
diff --git a/llvm/test/CodeGen/MIR/X86/variable-sized-stack-objects.mir b/llvm/test/CodeGen/MIR/X86/variable-sized-stack-objects.mir
index be363f8c5b3..1ed74774f1a 100644
--- a/llvm/test/CodeGen/MIR/X86/variable-sized-stack-objects.mir
+++ b/llvm/test/CodeGen/MIR/X86/variable-sized-stack-objects.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses variable sized stack objects
 # correctly.
 
diff --git a/llvm/test/CodeGen/MIR/X86/virtual-registers.mir b/llvm/test/CodeGen/MIR/X86/virtual-registers.mir
index 0fd860bcb7c..153356f838e 100644
--- a/llvm/test/CodeGen/MIR/X86/virtual-registers.mir
+++ b/llvm/test/CodeGen/MIR/X86/virtual-registers.mir
@@ -1,4 +1,4 @@
-# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s
+# RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o - %s | FileCheck %s
 # This test ensures that the MIR parser parses virtual register definitions and
 # references correctly.