s390: Remove -m{,no-}lra option

Since the old reload pass is about to be removed and we defaulted to LRA
for over a decade, remove option -m{,no-}lra.

PR target/113953

gcc/ChangeLog:

	* config/s390/s390.cc (s390_lra_p): Remove.
	(TARGET_LRA_P): Remove.
	* config/s390/s390.opt (mlra): Remove.
	* config/s390/s390.opt.urls (mlra): Remove.

gcc/testsuite/ChangeLog:

	* gcc.target/s390/TI-constants-nolra.c: Removed.
	* gcc.target/s390/pr79895.c: Removed.

5 files changed, 0 insertions, 72 deletions

diff --git a/gcc/config/s390/s390.cc b/gcc/config/s390/s390.cc
index c9172d1..25d43ae 100644
--- a/gcc/config/s390/s390.cc
+++ b/gcc/config/s390/s390.cc
@@ -11342,13 +11342,6 @@ s390_can_change_mode_class (machine_mode from_mode,
   return true;
 }
 
-/* Return true if we use LRA instead of reload pass.  */
-static bool
-s390_lra_p (void)
-{
-  return s390_lra_flag;
-}
-
 /* Return true if register FROM can be eliminated via register TO.  */
 
 static bool
@@ -18444,9 +18437,6 @@ s390_c_mode_for_floating_type (enum tree_index ti)
 #undef TARGET_LEGITIMATE_CONSTANT_P
 #define TARGET_LEGITIMATE_CONSTANT_P s390_legitimate_constant_p
 
-#undef TARGET_LRA_P
-#define TARGET_LRA_P s390_lra_p
-
 #undef TARGET_CAN_ELIMINATE
 #define TARGET_CAN_ELIMINATE s390_can_eliminate
 
diff --git a/gcc/config/s390/s390.opt b/gcc/config/s390/s390.opt
index a5b5aa9..23ea4b8 100644
--- a/gcc/config/s390/s390.opt
+++ b/gcc/config/s390/s390.opt
@@ -229,10 +229,6 @@ Set the branch costs for conditional branch instructions.  Reasonable
 values are small, non-negative integers.  The default branch cost is
 1.
 
-mlra
-Target Var(s390_lra_flag) Init(1) Save
-Use LRA instead of reload.
-
 mpic-data-is-text-relative
 Target Var(s390_pic_data_is_text_relative) Init(TARGET_DEFAULT_PIC_DATA_IS_TEXT_RELATIVE)
 Assume data segments are relative to text segment.
diff --git a/gcc/config/s390/s390.opt.urls b/gcc/config/s390/s390.opt.urls
index ab1e761..bc772d2 100644
--- a/gcc/config/s390/s390.opt.urls
+++ b/gcc/config/s390/s390.opt.urls
@@ -74,8 +74,6 @@ UrlSuffix(gcc/S_002f390-and-zSeries-Options.html#index-mzarch)
 
 ; skipping UrlSuffix for 'mbranch-cost=' due to finding no URLs
 
-; skipping UrlSuffix for 'mlra' due to finding no URLs
-
 ; skipping UrlSuffix for 'mpic-data-is-text-relative' due to finding no URLs
 
 ; skipping UrlSuffix for 'mindirect-branch=' due to finding no URLs
diff --git a/gcc/testsuite/gcc.target/s390/TI-constants-nolra.c b/gcc/testsuite/gcc.target/s390/TI-constants-nolra.c
deleted file mode 100644
index b9948fc..0000000
--- a/gcc/testsuite/gcc.target/s390/TI-constants-nolra.c
+++ /dev/null
@@ -1,47 +0,0 @@
-/* { dg-do compile { target int128 } } */
-/* { dg-options "-O3 -mno-lra" } */
-
-/* 2x lghi */
-__int128 a() {
-  return 0;
-}
-
-/* 2x lghi */
-__int128 b() {
-  return -1;
-}
-
-/* 2x lghi */
-__int128 c() {
-  return -2;
-}
-
-/* lghi + llilh */
-__int128 d() {
-  return 16000 << 16;
-}
-
-/* lghi + llihf */
-__int128 e() {
-  return (unsigned long long)80000 << 32;
-}
-
-/* lghi + llihf */
-__int128 f() {
-  return (unsigned __int128)80000 << 96;
-}
-
-/* llihf + llihf - this is handled via movti_bigconst pattern */
-__int128 g() {
-  return ((unsigned __int128)80000 << 96) | ((unsigned __int128)80000 << 32);
-}
-
-/* Literal pool */
-__int128 h() {
-  return ((unsigned __int128)80000 << 32) | 1;
-}
-
-/* Literal pool */
-__int128 i() {
-  return (((unsigned __int128)80000 << 32) | 1) << 64;
-}
diff --git a/gcc/testsuite/gcc.target/s390/pr79895.c b/gcc/testsuite/gcc.target/s390/pr79895.c
deleted file mode 100644
index 02374e4..0000000
--- a/gcc/testsuite/gcc.target/s390/pr79895.c
+++ /dev/null
@@ -1,9 +0,0 @@
-/* { dg-do compile { target int128 } } */
-/* { dg-options "-O1 -mno-lra" } */
-
-unsigned __int128 g;
-void
-foo ()
-{
-  g = (unsigned __int128)1 << 127;
-}