[llvm] [POWERPC] Fixes an error in the handling of the MTVSRBMI instruction for big-endian (PR #151565)

[Lei Huang via llvm-commits]

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@@ -2,22 +2,87 @@
 ; Verify whether the generated assembly for the following function includes the mtvsrbmi instruction.
 ; vector unsigned char v00FF()
 ; {
-; vector unsigned char x = { 0xFF, 0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0 };
-; return x;
+;   vector unsigned char x = { 0xFF, 0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0 };
+;   return x;
+; }
+; vector unsigned short short00FF()
+; {
+;   vector unsigned short x = { 0xFF, 0,0,0, 0,0,0,0};
+;   return x;
+; }
+; vector unsigned int int00FF()
+; {
+;   vector unsigned int x = { 0xFF, 0,0,0};
+;   return x;
+; }
+; vector unsigned long long  longlong00FF()
+; {
+;   vector unsigned long long x = { 0xFF, 0};
+;   return x;
 ; }
 
 ; RUN: llc < %s -ppc-asm-full-reg-names  -mtriple=powerpc-ibm-aix -mcpu=pwr10  -verify-machineinstrs \
-; RUN:   | FileCheck %s --check-prefix=CHECK
+; RUN:   | FileCheck %s --check-prefixes=CHECK,CHECK-BE
+
+; RUN: llc < %s -ppc-asm-full-reg-names  -mtriple=powerpc64le-unknown-gnu-linux -mcpu=pwr10  -verify-machineinstrs \
+; RUN:   | FileCheck %s --check-prefixes=CHECK,CHECK-LE
+
+; CHECK-NOT:   .byte   255
+; CHECK-NOT:   .byte   0
----------------
lei137 wrote:

Are these auto generated?  

https://github.com/llvm/llvm-project/pull/151565