[LoopVectorize][NFC] Disable output for tests that don't need it (llvm#124747)

There are a lot of tests that do not depend upon the IR output
for validation, relying instead on the debug output. For these
tests we can add the -disable-output command line argument.

Author: david-arm

llvm/test/Transforms/LoopVectorize/AArch64/no_vector_instructions.ll

@@ -1,5 +1,5 @@
 ; REQUIRES: asserts
-; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=1 -S -debug-only=loop-vectorize 2>&1 | FileCheck %s
+; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=1 -S -debug-only=loop-vectorize --disable-output 2>&1 | FileCheck %s
 
 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
 target triple = "aarch64--linux-gnu"

llvm/test/Transforms/LoopVectorize/AArch64/scalable-vectorization-cost-tuning.ll

@@ -1,22 +1,22 @@
 ; REQUIRES: asserts
 ; RUN: opt -mtriple=aarch64 -mattr=+sve \
-; RUN:     -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize < %s 2>&1 \
+; RUN:     -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize --disable-output < %s 2>&1 \
 ; RUN:     | FileCheck %s --check-prefixes=VSCALEFORTUNING1
 
 ; RUN: opt -mtriple=aarch64 -mattr=+sve -mcpu=generic \
-; RUN:     -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize < %s 2>&1 \
+; RUN:     -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize --disable-output < %s 2>&1 \
 ; RUN:     | FileCheck %s --check-prefixes=VSCALEFORTUNING1
 
 ; RUN: opt -mtriple=aarch64 -mcpu=neoverse-v1 \
-; RUN:     -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize < %s 2>&1 \
+; RUN:     -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize --disable-output < %s 2>&1 \
 ; RUN:     | FileCheck %s --check-prefixes=VSCALEFORTUNING2
 
 ; RUN: opt -mtriple=aarch64 -mcpu=neoverse-n2 \
-; RUN:     -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize < %s 2>&1 \
+; RUN:     -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize --disable-output < %s 2>&1 \
 ; RUN:     | FileCheck %s --check-prefixes=VSCALEFORTUNING1
 
 ; RUN: opt -mtriple=aarch64 -mcpu=neoverse-v2 \
-; RUN:     -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize < %s 2>&1 \
+; RUN:     -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize --disable-output < %s 2>&1 \
 ; RUN:     | FileCheck %s --check-prefixes=NEOVERSEV2
 
 ; VSCALEFORTUNING1: Cost for VF vscale x 2: 11 (Estimated cost per lane: 5.

llvm/test/Transforms/LoopVectorize/AArch64/scalable-vectorization.ll

@@ -1,7 +1,7 @@
 ; REQUIRES: asserts
-; RUN: opt -mtriple=aarch64-none-linux-gnu -mattr=+sve -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize -scalable-vectorization=off < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK_SCALABLE_DISABLED
-; RUN: opt -mtriple=aarch64-none-linux-gnu -mattr=+sve -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize -scalable-vectorization=on < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK_SCALABLE_ON
-; RUN: opt -mtriple=aarch64-none-linux-gnu -mattr=+sve -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize -vectorizer-maximize-bandwidth -scalable-vectorization=on < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK_SCALABLE_ON_MAXBW
+; RUN: opt -mtriple=aarch64-none-linux-gnu -mattr=+sve -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize --disable-output -scalable-vectorization=off < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK_SCALABLE_DISABLED
+; RUN: opt -mtriple=aarch64-none-linux-gnu -mattr=+sve -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize --disable-output -scalable-vectorization=on < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK_SCALABLE_ON
+; RUN: opt -mtriple=aarch64-none-linux-gnu -mattr=+sve -force-target-instruction-cost=1 -passes=loop-vectorize -S -debug-only=loop-vectorize --disable-output -vectorizer-maximize-bandwidth -scalable-vectorization=on < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK_SCALABLE_ON_MAXBW
 
 ; Test that the MaxVF for the following loop, that has no dependence distances,
 ; is calculated as vscale x 4 (max legal SVE vector size) or vscale x 16

llvm/test/Transforms/LoopVectorize/AArch64/streaming-vectorization.ll

@@ -1,6 +1,6 @@
 ; REQUIRES: asserts
-; RUN: opt -S -passes=loop-vectorize -debug-only=loop-vectorize < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,NOVEC
-; RUN: opt -S -passes=loop-vectorize -debug-only=loop-vectorize -enable-scalable-autovec-in-streaming-mode < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,VEC
+; RUN: opt -S -passes=loop-vectorize -debug-only=loop-vectorize --disable-output < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,NOVEC
+; RUN: opt -S -passes=loop-vectorize -debug-only=loop-vectorize --disable-output -enable-scalable-autovec-in-streaming-mode < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,VEC
 
 target triple = "aarch64-unknown-linux-gnu"
 

llvm/test/Transforms/LoopVectorize/AArch64/sve2-histcnt-outerloop-scevaddrec.ll

@@ -1,4 +1,4 @@
-; RUN: opt < %s -mattr=+sve2 -passes=loop-vectorize,instcombine -enable-histogram-loop-vectorization -sve-gather-overhead=2 -sve-scatter-overhead=2 -debug-only=loop-vectorize -S 2>&1 | FileCheck %s
+; RUN: opt < %s -mattr=+sve2 -passes=loop-vectorize,instcombine -enable-histogram-loop-vectorization -sve-gather-overhead=2 -sve-scatter-overhead=2 -debug-only=loop-vectorize --disable-output -S 2>&1 | FileCheck %s
 ; REQUIRES: asserts
 
 target triple = "aarch64-unknown-linux-gnu"

llvm/test/Transforms/LoopVectorize/AArch64/sve2-histcnt-vplan.ll

@@ -1,4 +1,4 @@
-; RUN: opt < %s -mattr=+sve2 -passes=loop-vectorize,instcombine -enable-histogram-loop-vectorization -sve-gather-overhead=2 -sve-scatter-overhead=2 -force-vector-interleave=1 -debug-only=loop-vectorize -S 2>&1 | FileCheck %s
+; RUN: opt < %s -mattr=+sve2 -passes=loop-vectorize,instcombine -enable-histogram-loop-vectorization -sve-gather-overhead=2 -sve-scatter-overhead=2 -force-vector-interleave=1 -debug-only=loop-vectorize --disable-output -S 2>&1 | FileCheck %s
 ; REQUIRES: asserts
 
 target triple = "aarch64-unknown-linux-gnu"

llvm/test/Transforms/LoopVectorize/ARM/arm-ieee-vectorize.ll

@@ -1,7 +1,7 @@
-; RUN: opt -mtriple armv7-linux-gnueabihf -passes=loop-vectorize -S %s -debug-only=loop-vectorize -o /dev/null 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=LINUX
-; RUN: opt -mtriple armv8-linux-gnu -passes=loop-vectorize -S %s -debug-only=loop-vectorize -o /dev/null 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=LINUX
-; RUN: opt -mtriple armv8.1.m-none-eabi -mattr=+mve.fp -passes=loop-vectorize -S %s -debug-only=loop-vectorize -o /dev/null 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=MVE
-; RUN: opt -mtriple armv7-unknwon-darwin -passes=loop-vectorize -S %s -debug-only=loop-vectorize -o /dev/null 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=DARWIN
+; RUN: opt -mtriple armv7-linux-gnueabihf -passes=loop-vectorize -S %s -debug-only=loop-vectorize --disable-output -o /dev/null 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=LINUX
+; RUN: opt -mtriple armv8-linux-gnu -passes=loop-vectorize -S %s -debug-only=loop-vectorize --disable-output -o /dev/null 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=LINUX
+; RUN: opt -mtriple armv8.1.m-none-eabi -mattr=+mve.fp -passes=loop-vectorize -S %s -debug-only=loop-vectorize --disable-output -o /dev/null 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=MVE
+; RUN: opt -mtriple armv7-unknwon-darwin -passes=loop-vectorize -S %s -debug-only=loop-vectorize --disable-output -o /dev/null 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=DARWIN
 ; REQUIRES: asserts
 
 target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"

llvm/test/Transforms/LoopVectorize/RISCV/force-vect-msg.ll

@@ -1,5 +1,5 @@
 ; REQUIRES: asserts
-; RUN: opt < %s -passes=loop-vectorize -mtriple riscv64 -riscv-v-vector-bits-min=128 -mattr="+v" -debug-only=loop-vectorize -S 2>&1 | FileCheck %s
+; RUN: opt < %s -passes=loop-vectorize -mtriple riscv64 -riscv-v-vector-bits-min=128 -mattr="+v" -debug-only=loop-vectorize --disable-output -S 2>&1 | FileCheck %s
 
 ; CHECK: LV: Loop hints: force=enabled
 ; CHECK: LV: Scalar loop costs: 4.

llvm/test/Transforms/LoopVectorize/RISCV/reg-usage-bf16.ll

@@ -1,5 +1,5 @@
 ; REQUIRES: asserts
-; RUN: opt -passes=loop-vectorize -mtriple riscv64 -mattr=+v,+zvfbfmin -debug-only=loop-vectorize -riscv-v-register-bit-width-lmul=1 -S < %s 2>&1 | FileCheck %s
+; RUN: opt -passes=loop-vectorize -mtriple riscv64 -mattr=+v,+zvfbfmin -debug-only=loop-vectorize --disable-output -riscv-v-register-bit-width-lmul=1 -S < %s 2>&1 | FileCheck %s
 
 define void @add(ptr noalias nocapture readonly %src1, ptr noalias nocapture readonly %src2, i32 signext %size, ptr noalias nocapture writeonly %result) {
 ; CHECK-LABEL: add

llvm/test/Transforms/LoopVectorize/RISCV/reg-usage-f16.ll

@@ -1,6 +1,6 @@
 ; REQUIRES: asserts
-; RUN: opt -passes=loop-vectorize -mtriple riscv64 -mattr=+v,+zvfh -debug-only=loop-vectorize -riscv-v-register-bit-width-lmul=1 -S < %s 2>&1 | FileCheck %s --check-prefix=ZVFH
-; RUN: opt -passes=loop-vectorize -mtriple riscv64 -mattr=+v,+zvfhmin -debug-only=loop-vectorize -riscv-v-register-bit-width-lmul=1 -S < %s 2>&1 | FileCheck %s --check-prefix=ZVFHMIN
+; RUN: opt -passes=loop-vectorize -mtriple riscv64 -mattr=+v,+zvfh -debug-only=loop-vectorize --disable-output -riscv-v-register-bit-width-lmul=1 -S < %s 2>&1 | FileCheck %s --check-prefix=ZVFH
+; RUN: opt -passes=loop-vectorize -mtriple riscv64 -mattr=+v,+zvfhmin -debug-only=loop-vectorize --disable-output -riscv-v-register-bit-width-lmul=1 -S < %s 2>&1 | FileCheck %s --check-prefix=ZVFHMIN
 
 define void @add(ptr noalias nocapture readonly %src1, ptr noalias nocapture readonly %src2, i32 signext %size, ptr noalias nocapture writeonly %result) {
 ; CHECK-LABEL: add