[RemoveDIs] Remove "try-debuginfo-iterators..." test flags (#130298)

These date back to when the non-intrinsic format of variable locations
was still being tested and was behind a compile-time flag, so not all
builds / bots would correctly run them. The solution at the time, to get
at least some test coverage, was to have tests opt-in to non-intrinsic
debug-info if it was built into LLVM.

Nowadays, non-intrinsic format is the default and has been on for more
than a year, there's no need for this flag to exist.

(I've downgraded the flag from "try" to explicitly requesting
non-intrinsic format in some places, so that we can deal with tests that
are explicitly about non-intrinsic format in their own commit).

Author: jmorse

llvm/test/CodeGen/AArch64/GlobalISel/combine-shift-of-shifted-dbg-value-fallback.ll

@@ -1,6 +1,5 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc < %s -global-isel -mtriple=arm64-linux-gnu -global-isel-abort=1 | FileCheck %s
-; RUN: llc < %s -global-isel -mtriple=arm64-linux-gnu -global-isel-abort=1 --try-experimental-debuginfo-iterators | FileCheck %s
 target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
 target triple = "arm64-apple-ios9.0.0"
 

llvm/test/CodeGen/AArch64/GlobalISel/debug-cpp.ll

@@ -1,7 +1,5 @@
 ; RUN: llc -global-isel -mtriple=aarch64 %s -stop-after=irtranslator -o - | FileCheck %s
 ; RUN: llc -mtriple=aarch64 -global-isel --global-isel-abort=0 -o /dev/null
-; RUN: llc -global-isel -mtriple=aarch64 %s -stop-after=irtranslator -o - --try-experimental-debuginfo-iterators | FileCheck %s
-; RUN: llc -mtriple=aarch64 -global-isel --global-isel-abort=0 -o /dev/null --try-experimental-debuginfo-iterators
 
 ; struct NTCopy {
 ;   NTCopy();

llvm/test/CodeGen/AArch64/GlobalISel/debug-insts.ll

@@ -3,9 +3,6 @@
 ; RUN: llc -mtriple=aarch64 -global-isel --global-isel-abort=0 %s -o /dev/null
 ; RUN: llc -mtriple=aarch64 -global-isel --global-isel-abort=0 %s -o /dev/null -debug
 ;
-; RUN: llc -global-isel -mtriple=aarch64 %s -stop-after=irtranslator -o - --try-experimental-debuginfo-iterators | FileCheck %s
-; RUN: llc -mtriple=aarch64 -global-isel --global-isel-abort=0 %s -o /dev/null --try-experimental-debuginfo-iterators
-; RUN: llc -mtriple=aarch64 -global-isel --global-isel-abort=0 %s -o /dev/null -debug --try-experimental-debuginfo-iterators
 
 ; CHECK-LABEL: name: debug_declare
 ; CHECK: stack:

llvm/test/CodeGen/AArch64/GlobalISel/irtranslator-dilocation.ll

@@ -1,7 +1,5 @@
 ; RUN: llc -O0 -mtriple=aarch64-apple-ios -global-isel -debug-only=irtranslator \
 ; RUN:     -stop-after=irtranslator %s -o - 2>&1 | FileCheck %s
-; RUN: llc -O0 -mtriple=aarch64-apple-ios -global-isel -debug-only=irtranslator \
-; RUN:     -stop-after=irtranslator %s -o - 2>&1 --try-experimental-debuginfo-iterators | FileCheck %s
 
 ; REQUIRES: asserts
 

llvm/test/CodeGen/AArch64/GlobalISel/irtranslator-extract-used-by-dbg.ll

@@ -1,5 +1,4 @@
 ; RUN: llc -O0 -stop-after=irtranslator -global-isel -verify-machineinstrs %s -o - 2>&1 | FileCheck %s
-; RUN: llc -O0 -stop-after=irtranslator -global-isel -verify-machineinstrs %s -o - 2>&1 --try-experimental-debuginfo-iterators | FileCheck %s
 
 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
 target triple = "aarch64-unknown-fuchsia"

llvm/test/CodeGen/AArch64/dbg-assign-tag-offset-mix-loc.ll

@@ -1,5 +1,4 @@
 ; RUN: llc -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
-; RUN: llc --try-experimental-debuginfo-iterators -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
 
 ;; Similar to dbg-assign-tag-offset.ll except the variable 'x' has been removed
 ;; and 'y' has an implicit location range as well as stack location range

llvm/test/CodeGen/AArch64/dbg-assign-tag-offset.ll

@@ -1,5 +1,4 @@
 ; RUN: llc -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
-; RUN: llc --try-experimental-debuginfo-iterators -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
 
 ;; Copied from dbg-value-tag-offset.ll. Check that variables with locations
 ;; tracked with dbg.assigns with DW_OP_LLVM_TAG_offset operators in their

llvm/test/CodeGen/AArch64/dbg-value-swift-async.ll

@@ -2,9 +2,6 @@
 ; RUN: llc --mtriple="aarch64-" -O0 -fast-isel=false -global-isel=false -stop-after=finalize-isel %s -o - | FileCheck %s --check-prefix=AARCH
 ; RUN: llc --mtriple="aarch64-" -O0 -fast-isel -stop-after=finalize-isel %s -o - | FileCheck %s --check-prefix=AARCH
 
-; RUN: llc --mtriple="aarch64-" -O0 -global-isel -stop-after=irtranslator -verify-machineinstrs %s -o - --try-experimental-debuginfo-iterators | FileCheck %s --check-prefix=AARCH
-; RUN: llc --mtriple="aarch64-" -O0 -fast-isel=false -global-isel=false -stop-after=finalize-isel %s -o - --try-experimental-debuginfo-iterators | FileCheck %s --check-prefix=AARCH
-; RUN: llc --mtriple="aarch64-" -O0 -fast-isel -stop-after=finalize-isel %s -o - --try-experimental-debuginfo-iterators | FileCheck %s --check-prefix=AARCH
 
 ; AARCH-NOT:  DBG_VALUE
 ; AARCH:      DBG_VALUE $x22, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1)

llvm/test/CodeGen/AArch64/fast-isel-dbg.ll

@@ -1,5 +1,4 @@
 ; RUN: llc -o - %s -fast-isel -stop-before=finalize-isel | FileCheck %s
-; RUN: llc --try-experimental-debuginfo-iterators -o - %s -fast-isel -stop-before=finalize-isel | FileCheck %s
 
 ; Make sure fast-isel produces DBG_VALUE instructions even if no debug printer
 ; is scheduled because of -stop-before.

llvm/test/CodeGen/AArch64/fastisel-debugvalue-undef.ll

@@ -1,5 +1,4 @@
 ; RUN: llc -O0 -fast-isel=1 -o - -print-after="finalize-isel" %s 2>&1 | FileCheck %s
-; RUN: llc --try-experimental-debuginfo-iterators -O0 -fast-isel=1 -o - -print-after="finalize-isel" %s 2>&1 | FileCheck %s
 
 ; Check that we emit a DBG_VALUE for the `@llvm.dbg.value` which has `undef` has first arg.