[RS6000] Don't pass -many to the assembler

[Alan Modra]

I'd like to remove -many from the options passed by default to the
assembler, on the grounds that a gcc bug in instruction selection (eg.
emitting a power9 insn for -mcpu=power8) is better found at assembly
time than run time.

This might annoy people for a while fixing user asm that we didn't
diagnose previously, but I believe this is the right direction to go.
Of course, -Wa,-many is available for anyone who just wants their
dodgy old code to work.

Bootstrapped etc. powerpc64le-linux.  OK?

	* config/rs6000/rs6000.h (ASM_CPU_SPEC): Remove -many.
	* config/rs6000/aix61.h (ASM_CPU_SPEC): Likewise.
	* config/rs6000/aix71.h (ASM_CPU_SPEC): Likewise.
	* testsuite/gcc.target/powerpc/ppc32-abi-dfp-1.c: Don't use
	power mnemonics.

diff --git a/gcc/config/rs6000/aix61.h b/gcc/config/rs6000/aix61.h
index 353e5d6cfeb..a7a8246bfe3 100644
--- a/gcc/config/rs6000/aix61.h
+++ b/gcc/config/rs6000/aix61.h
@@ -91,8 +91,7 @@ do {									\
 %{mcpu=630: -m620} \
 %{mcpu=970: -m970} \
 %{mcpu=G5: -m970} \
-%{mvsx: %{!mcpu*: -mpwr6}} \
--many"
+%{mvsx: %{!mcpu*: -mpwr6}}"
 
 #undef	ASM_DEFAULT_SPEC
 #define ASM_DEFAULT_SPEC "-mpwr4"
diff --git a/gcc/config/rs6000/aix71.h b/gcc/config/rs6000/aix71.h
index 2398ed64baa..d2ca8dc275d 100644
--- a/gcc/config/rs6000/aix71.h
+++ b/gcc/config/rs6000/aix71.h
@@ -89,8 +89,7 @@ do {									\
 	    maltivec: -m970; \
 	    maix64|mpowerpc64: -mppc64; \
 	    : %(asm_default)}; \
-  :%eMissing -mcpu option in ASM_SPEC_CPU?\n} \
--many"
+  :%eMissing -mcpu option in ASM_SPEC_CPU?\n}"
 
 #undef	ASM_DEFAULT_SPEC
 #define ASM_DEFAULT_SPEC "-mpwr4"
diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h
index d75137cf8f5..9d78173a680 100644
--- a/gcc/config/rs6000/rs6000.h
+++ b/gcc/config/rs6000/rs6000.h
@@ -137,8 +137,7 @@
 	    mvsx: -mpower7; \
 	    mpowerpc64: -mppc64;: %(asm_default)}; \
   :%eMissing -mcpu option in ASM_SPEC_CPU?\n} \
-%{mvsx: -mvsx -maltivec; maltivec: -maltivec} \
--many"
+%{mvsx: -mvsx -maltivec; maltivec: -maltivec}"
 
 #define CPP_DEFAULT_SPEC ""
 
diff --git a/gcc/testsuite/gcc.target/powerpc/ppc32-abi-dfp-1.c b/gcc/testsuite/gcc.target/powerpc/ppc32-abi-dfp-1.c
index 14908dba690..eea7f6ffc2e 100644
--- a/gcc/testsuite/gcc.target/powerpc/ppc32-abi-dfp-1.c
+++ b/gcc/testsuite/gcc.target/powerpc/ppc32-abi-dfp-1.c
@@ -45,14 +45,14 @@ __asm__ ("\t.globl\t" #NAME "_asm\n\t"					\
 	 #NAME "_asm:\n\t"						\
 	 "lis 11,gparms@ha\n\t"						\
 	 "la 11,gparms@l(11)\n\t"					\
-	 "st 3,0(11)\n\t"						\
-	 "st 4,4(11)\n\t"						\
-	 "st 5,8(11)\n\t"						\
-	 "st 6,12(11)\n\t"						\
-	 "st 7,16(11)\n\t"						\
-	 "st 8,20(11)\n\t"						\
-	 "st 9,24(11)\n\t"						\
-	 "st 10,28(11)\n\t"						\
+	 "stw 3,0(11)\n\t"						\
+	 "stw 4,4(11)\n\t"						\
+	 "stw 5,8(11)\n\t"						\
+	 "stw 6,12(11)\n\t"						\
+	 "stw 7,16(11)\n\t"						\
+	 "stw 8,20(11)\n\t"						\
+	 "stw 9,24(11)\n\t"						\
+	 "stw 10,28(11)\n\t"						\
 	 "stfd 1,32(11)\n\t"						\
 	 "stfd 2,40(11)\n\t"						\
 	 "stfd 3,48(11)\n\t"						\

-- 
Alan Modra
Australia Development Lab, IBM