[gcc r15-15] decay vect tests from run to link for pr95401

[gcc r15-15] decay vect tests from run to link for pr95401

[Alexandre Oliva]

https://gcc.gnu.org/g:05d83334d5bbeae01d71080f1da524810d6740d9

commit r15-15-g05d83334d5bbeae01d71080f1da524810d6740d9
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Sun Apr 28 04:29:54 2024 -0300

    decay vect tests from run to link for pr95401
    
    When vect.exp finds our configuration disables altivec by default, it
    disables the execution of vectorization tests, assuming the test
    hardware doesn't support it.
    
    Tests become just compile tests, but compile tests won't work
    correctly when additional sources are named, e.g. pr95401.cc, because
    GCC refuses to compile multiple files into the same asm output.
    
    With this patch, the default for when execution is not possible
    becomes link.
    
    
    for  gcc/testsuite/ChangeLog
    
            * lib/target-supports.exp (check_vect_support_and_set_flags):
            Decay to link rather than compile.

Diff:
---
 gcc/testsuite/lib/target-supports.exp | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index 3a55b2a4159..182d80129de 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -11625,7 +11625,7 @@ proc check_vect_support_and_set_flags { } {
         if [check_750cl_hw_available] {
             set dg-do-what-default run
         } else {
-            set dg-do-what-default compile
+            set dg-do-what-default link
         }
     } elseif [istarget powerpc*-*-*] {
         # Skip targets not supporting -maltivec.
@@ -11655,14 +11655,14 @@ proc check_vect_support_and_set_flags { } {
                 # some other cpu type specified above.
 		set DEFAULT_VECTCFLAGS [linsert $DEFAULT_VECTCFLAGS 0 "-mcpu=970"]
             }
-            set dg-do-what-default compile
+            set dg-do-what-default link
         }
     } elseif { [istarget i?86-*-*] || [istarget x86_64-*-*] } {
         lappend DEFAULT_VECTCFLAGS "-msse2"
         if { [check_effective_target_sse2_runtime] } {
             set dg-do-what-default run
         } else {
-            set dg-do-what-default compile
+            set dg-do-what-default link
         }
     } elseif { [istarget mips*-*-*]
 	       && [check_effective_target_nomips16] } {
@@ -11681,7 +11681,7 @@ proc check_vect_support_and_set_flags { } {
         if [check_effective_target_ultrasparc_hw] {
             set dg-do-what-default run
         } else {
-            set dg-do-what-default compile
+            set dg-do-what-default link
         }
     } elseif [istarget alpha*-*-*] {
         # Alpha's vectorization capabilities are extremely limited.
@@ -11694,7 +11694,7 @@ proc check_vect_support_and_set_flags { } {
         if [check_alpha_max_hw_available] {
             set dg-do-what-default run
         } else {
-            set dg-do-what-default compile
+            set dg-do-what-default link
         }
     } elseif [istarget ia64-*-*] {
         set dg-do-what-default run
@@ -11707,7 +11707,7 @@ proc check_vect_support_and_set_flags { } {
         if [is-effective-target arm_neon_hw] {
             set dg-do-what-default run
         } else {
-            set dg-do-what-default compile
+            set dg-do-what-default link
         }
     } elseif [istarget aarch64*-*-*] {
         set dg-do-what-default run
@@ -11731,7 +11731,7 @@ proc check_vect_support_and_set_flags { } {
             set dg-do-what-default run
         } else {
 	    lappend DEFAULT_VECTCFLAGS "-march=z14" "-mzarch"
-            set dg-do-what-default compile
+            set dg-do-what-default link
         }
     } elseif [istarget amdgcn-*-*] {
         set dg-do-what-default run
@@ -11742,7 +11742,7 @@ proc check_vect_support_and_set_flags { } {
 	    foreach item [add_options_for_riscv_v ""] {
 		lappend DEFAULT_VECTCFLAGS $item
 	    }
-	    set dg-do-what-default compile
+	    set dg-do-what-default link
 	}
     } elseif [istarget loongarch*-*-*] {
       # Set the default vectorization option to "-mlsx" due to the problem
@@ -11751,7 +11751,7 @@ proc check_vect_support_and_set_flags { } {
       if [check_effective_target_loongarch_sx_hw] {
 	  set dg-do-what-default run
       } else {
-	  set dg-do-what-default compile
+	  set dg-do-what-default link
       }
     } else {
         return 0