diff mbox series

[4/5,ver4] RS6000, Add test 128-bit shifts for just the int128 type.

Message ID ad119e59fe43cacafb8a82477054b84f43522a28.camel@us.ibm.com
State New
Headers show
Series RS6000: Add 128-bit Integer Operations | expand

Commit Message

Carl Love April 26, 2021, 4:36 p.m. UTC
Will, Segher:

The previous patch added the vector 128-bit integer shift instruction
support for the V1TI type.  This patch renames and moves the VSX_TI
iterator from vsx.md to VEC_TI in vector.md.  The uses of VEC_TI are
also updated.

The patch has been tested on
    powerpc64-linux instead (Power 8 BE)
    powerpc64-linux instead (Power 9 LE)
    powerpc64-linux instead (Power 10 LE)

Please let me know if the patch is acceptable for mainline.

                   Carl Love
------------------------------------------------

gcc/ChangeLog

2021-04-26  Carl Love  <cel@us.ibm.com>
	* config/rs6000/altivec.md (altivec_vslq, altivec_vsrq):
	Rename to altivec_vslq_<mode>, altivec_vsrq_<mode>, mode VEC_TI.
	* config/rs6000/vector.md (VEC_TI): Was named VSX_TI in vsx.md.
	(vashlv1ti3): Change to vashl<mode>3, mode VEC_TI.
	(vlshrv1ti3): Change to vlshr<mode>3, mode VEC_TI.
	* config/rs6000/vsx.md (VSX_TI): Remove define_mode_iterator. Update
	uses of VSX_TI to VEC_TI.

gcc/testsuite/ChangeLog

2021-04-26  Carl Love  <cel@us.ibm.com>
	gcc.target/powerpc/int_128bit-runnable.c: Add shift_right, shift_left
	tests.
---
 gcc/config/rs6000/altivec.md                  | 16 ++++-----
 gcc/config/rs6000/vector.md                   | 27 ++++++++-------
 gcc/config/rs6000/vsx.md                      | 33 +++++++++----------
 .../gcc.target/powerpc/int_128bit-runnable.c  | 16 +++++++--
 4 files changed, 52 insertions(+), 40 deletions(-)

Comments

will schmidt April 27, 2021, 11:46 p.m. UTC | #1
On Mon, 2021-04-26 at 09:36 -0700, Carl Love wrote:
> Will, Segher:
> 
> The previous patch added the vector 128-bit integer shift instruction
> support for the V1TI type.  This patch renames and moves the VSX_TI
> iterator from vsx.md to VEC_TI in vector.md.  The uses of VEC_TI are
> also updated.
> 
> The patch has been tested on
>     powerpc64-linux instead (Power 8 BE)
>     powerpc64-linux instead (Power 9 LE)
>     powerpc64-linux instead (Power 10 LE)
> 
> Please let me know if the patch is acceptable for mainline.
> 
>                    Carl Love
> ------------------------------------------------
> 
> gcc/ChangeLog
> 
> 2021-04-26  Carl Love  <cel@us.ibm.com>
> 	* config/rs6000/altivec.md (altivec_vslq, altivec_vsrq):
> 	Rename to altivec_vslq_<mode>, altivec_vsrq_<mode>, mode VEC_TI.
> 	* config/rs6000/vector.md (VEC_TI): Was named VSX_TI in vsx.md.
> 	(vashlv1ti3): Change to vashl<mode>3, mode VEC_TI.
> 	(vlshrv1ti3): Change to vlshr<mode>3, mode VEC_TI.
> 	* config/rs6000/vsx.md (VSX_TI): Remove define_mode_iterator. Update
> 	uses of VSX_TI to VEC_TI.
> 
> gcc/testsuite/ChangeLog
> 
> 2021-04-26  Carl Love  <cel@us.ibm.com>
> 	gcc.target/powerpc/int_128bit-runnable.c: Add shift_right, shift_left
> 	tests.
> ---
>  gcc/config/rs6000/altivec.md                  | 16 ++++-----
>  gcc/config/rs6000/vector.md                   | 27 ++++++++-------
>  gcc/config/rs6000/vsx.md                      | 33 +++++++++----------
>  .../gcc.target/powerpc/int_128bit-runnable.c  | 16 +++++++--
>  4 files changed, 52 insertions(+), 40 deletions(-)
> 
> diff --git a/gcc/config/rs6000/altivec.md b/gcc/config/rs6000/altivec.md
> index c4c82b33f8d..c7d2cd0aa88 100644
> --- a/gcc/config/rs6000/altivec.md
> +++ b/gcc/config/rs6000/altivec.md
> @@ -2226,10 +2226,10 @@
>    "vsl<VI_char> %0,%1,%2"
>    [(set_attr "type" "vecsimple")])
> 
> -(define_insn "altivec_vslq"
> -  [(set (match_operand:V1TI 0 "vsx_register_operand" "=v")
> -	(ashift:V1TI (match_operand:V1TI 1 "vsx_register_operand" "v")
> -		     (match_operand:V1TI 2 "vsx_register_operand" "v")))]
> +(define_insn "altivec_vslq_<mode>"
> +  [(set (match_operand:VEC_TI 0 "vsx_register_operand" "=v")
> +	(ashift:VEC_TI (match_operand:VEC_TI 1 "vsx_register_operand" "v")
> +		     (match_operand:VEC_TI 2 "vsx_register_operand" "v")))]
>    "TARGET_POWER10"
>    /* Shift amount in needs to be in bits[57:63] of 128-bit operand. */
>    "vslq %0,%1,%2"
> @@ -2243,10 +2243,10 @@
>    "vsr<VI_char> %0,%1,%2"
>    [(set_attr "type" "vecsimple")])
> 
> -(define_insn "altivec_vsrq"
> -  [(set (match_operand:V1TI 0 "vsx_register_operand" "=v")
> -	(lshiftrt:V1TI (match_operand:V1TI 1 "vsx_register_operand" "v")
> -		       (match_operand:V1TI 2 "vsx_register_operand" "v")))]
> +(define_insn "altivec_vsrq_<mode>"
> +  [(set (match_operand:VEC_TI 0 "vsx_register_operand" "=v")
> +	(lshiftrt:VEC_TI (match_operand:VEC_TI 1 "vsx_register_operand" "v")
> +			   (match_operand:VEC_TI 2 "vsx_register_operand" "v")))]
>    "TARGET_POWER10"
>    /* Shift amount in needs to be in bits[57:63] of 128-bit operand. */
>    "vsrq %0,%1,%2"

ok

> diff --git a/gcc/config/rs6000/vector.md b/gcc/config/rs6000/vector.md
> index 55bbaa9c32f..5695154e316 100644
> --- a/gcc/config/rs6000/vector.md
> +++ b/gcc/config/rs6000/vector.md
> @@ -26,6 +26,9 @@
>  ;; Vector int modes
>  (define_mode_iterator VEC_I [V16QI V8HI V4SI V2DI])
> 
> +;; 128-bit int modes
> +(define_mode_iterator VEC_TI [V1TI TI])
> +
>  ;; Vector int modes for parity
>  (define_mode_iterator VEC_IP [V8HI
>  			      V4SI
> @@ -1627,17 +1630,17 @@
>    "")
> 
>  ;; No immediate version of this 128-bit instruction
> -(define_expand "vashlv1ti3"
> -  [(set (match_operand:V1TI 0 "vsx_register_operand" "=v")
> -	(ashift:V1TI (match_operand:V1TI 1 "vsx_register_operand" "v")
> -		     (match_operand:V1TI 2 "vsx_register_operand" "v")))]
> +(define_expand "vashl<mode>3"
> +  [(set (match_operand:VEC_TI 0 "vsx_register_operand" "=v")
> +	(ashift:VEC_TI (match_operand:VEC_TI 1 "vsx_register_operand")
> +			 (match_operand:VEC_TI 2 "vsx_register_operand")))]
>    "TARGET_POWER10"
>  {
>    /* Shift amount in needs to be put in bits[57:63] of 128-bit operand2. */
> -  rtx tmp = gen_reg_rtx (V1TImode);
> +  rtx tmp = gen_reg_rtx (<MODE>mode);
> 
>    emit_insn (gen_xxswapd_v1ti (tmp, operands[2]));
> -  emit_insn (gen_altivec_vslq (operands[0], operands[1], tmp));
> +  emit_insn(gen_altivec_vslq_<mode> (operands[0], operands[1], tmp));
>    DONE;
>  })
> 
> @@ -1650,17 +1653,17 @@
>    "")
> 
>  ;; No immediate version of this 128-bit instruction
> -(define_expand "vlshrv1ti3"
> -  [(set (match_operand:V1TI 0 "vsx_register_operand" "=v")
> -	(lshiftrt:V1TI (match_operand:V1TI 1 "vsx_register_operand" "v")
> -		       (match_operand:V1TI 2 "vsx_register_operand" "v")))]
> +(define_expand "vlshr<mode>3"
> +  [(set (match_operand:VEC_TI 0 "vsx_register_operand" "=v")
> +	(lshiftrt:VEC_TI (match_operand:VEC_TI 1 "vsx_register_operand")
> +			   (match_operand:VEC_TI 2 "vsx_register_operand")))]
>    "TARGET_POWER10"
>  {
>    /* Shift amount in needs to be put into bits[57:63] of 128-bit operand2. */
> -  rtx tmp = gen_reg_rtx (V1TImode);
> +  rtx tmp = gen_reg_rtx (<MODE>mode);
> 
>    emit_insn (gen_xxswapd_v1ti (tmp, operands[2]));
> -  emit_insn (gen_altivec_vsrq (operands[0], operands[1], tmp));
> +  emit_insn(gen_altivec_vsrq_<mode> (operands[0], operands[1], tmp));
>    DONE;
>  })
> 

ok


> diff --git a/gcc/config/rs6000/vsx.md b/gcc/config/rs6000/vsx.md
> index ba539549024..587011081e1 100644
> --- a/gcc/config/rs6000/vsx.md
> +++ b/gcc/config/rs6000/vsx.md
> @@ -37,9 +37,6 @@
>  				  TI
>  				  V1TI])
> 
> -;; Iterator for 128-bit integer types that go in a single vector register.
> -(define_mode_iterator VSX_TI [TI V1TI])
> -
>  ;; Iterator for the 2 32-bit vector types
>  (define_mode_iterator VSX_W [V4SF V4SI])
> 
> @@ -952,9 +949,9 @@
>  ;; special V1TI container class, which it is not appropriate to use vec_select
>  ;; for the type.
>  (define_insn "*vsx_le_permute_<mode>"
> -  [(set (match_operand:VSX_TI 0 "nonimmediate_operand" "=wa,wa,Z,&r,&r,Q")
> -	(rotate:VSX_TI
> -	 (match_operand:VSX_TI 1 "input_operand" "wa,Z,wa,r,Q,r")
> +  [(set (match_operand:VEC_TI 0 "nonimmediate_operand" "=wa,wa,Z,&r,&r,Q")
> +	(rotate:VEC_TI
> +	 (match_operand:VEC_TI 1 "input_operand" "wa,Z,wa,r,Q,r")
>  	 (const_int 64)))]
>    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
>    "@
> @@ -968,10 +965,10 @@
>     (set_attr "type" "vecperm,vecload,vecstore,*,load,store")])
> 
>  (define_insn_and_split "*vsx_le_undo_permute_<mode>"
> -  [(set (match_operand:VSX_TI 0 "vsx_register_operand" "=wa,wa")
> -	(rotate:VSX_TI
> -	 (rotate:VSX_TI
> -	  (match_operand:VSX_TI 1 "vsx_register_operand" "0,wa")
> +  [(set (match_operand:VEC_TI 0 "vsx_register_operand" "=wa,wa")
> +	(rotate:VEC_TI
> +	 (rotate:VEC_TI
> +	  (match_operand:VEC_TI 1 "vsx_register_operand" "0,wa")
>  	  (const_int 64))
>  	 (const_int 64)))]
>    "!BYTES_BIG_ENDIAN && TARGET_VSX"
> @@ -1043,11 +1040,11 @@
>  ;; Peepholes to catch loads and stores for TImode if TImode landed in
>  ;; GPR registers on a little endian system.
>  (define_peephole2
> -  [(set (match_operand:VSX_TI 0 "int_reg_operand")
> -	(rotate:VSX_TI (match_operand:VSX_TI 1 "memory_operand")
> +  [(set (match_operand:VEC_TI 0 "int_reg_operand")
> +	(rotate:VEC_TI (match_operand:VEC_TI 1 "memory_operand")
>  		       (const_int 64)))
> -   (set (match_operand:VSX_TI 2 "int_reg_operand")
> -	(rotate:VSX_TI (match_dup 0)
> +   (set (match_operand:VEC_TI 2 "int_reg_operand")
> +	(rotate:VEC_TI (match_dup 0)
>  		       (const_int 64)))]
>    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR
>     && (rtx_equal_p (operands[0], operands[2])
> @@ -1055,11 +1052,11 @@
>     [(set (match_dup 2) (match_dup 1))])
> 
>  (define_peephole2
> -  [(set (match_operand:VSX_TI 0 "int_reg_operand")
> -	(rotate:VSX_TI (match_operand:VSX_TI 1 "int_reg_operand")
> +  [(set (match_operand:VEC_TI 0 "int_reg_operand")
> +	(rotate:VEC_TI (match_operand:VEC_TI 1 "int_reg_operand")
>  		       (const_int 64)))
> -   (set (match_operand:VSX_TI 2 "memory_operand")
> -	(rotate:VSX_TI (match_dup 0)
> +   (set (match_operand:VEC_TI 2 "memory_operand")
> +	(rotate:VEC_TI (match_dup 0)
>  		       (const_int 64)))]
>    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR
>     && peep2_reg_dead_p (2, operands[0])"


ok

> diff --git a/gcc/testsuite/gcc.target/powerpc/int_128bit-runnable.c b/gcc/testsuite/gcc.target/powerpc/int_128bit-runnable.c
> index 625b3869118..9f7dbc6cc75 100644
> --- a/gcc/testsuite/gcc.target/powerpc/int_128bit-runnable.c
> +++ b/gcc/testsuite/gcc.target/powerpc/int_128bit-runnable.c
> @@ -52,6 +52,18 @@ void print_i128(__int128_t val)
> 
>  void abort (void);
> 
> +__attribute__((noinline))
> +__int128_t shift_right (__int128_t a, __uint128_t b)
> +{
> +  return a >> b;
> +}
> +
> +__attribute__((noinline))
> +__int128_t shift_left (__int128_t a, __uint128_t b)
> +{
> +  return a << b;
> +}
> +
>  int main ()
>  {
>    int i, result_int;
> @@ -102,7 +114,7 @@ int main ()
>  #endif
>    }
> 
> -  arg1 = 3;
> +  arg1 = vec_result[0];
>    uarg2 = 4;
>    expected_result = arg1*16;
> 
> @@ -186,7 +198,7 @@ int main ()
>  #endif
>    }
> 
> -  arg1 = 48;
> +  arg1 = vec_uresult[0];
>    uarg2 = 4;
>    expected_result = arg1/16;

ok

>
Segher Boessenkool June 5, 2021, 12:03 a.m. UTC | #2
Hi!

On Mon, Apr 26, 2021 at 09:36:26AM -0700, Carl Love wrote:
> The previous patch added the vector 128-bit integer shift instruction
> support for the V1TI type.  This patch renames and moves the VSX_TI
> iterator from vsx.md to VEC_TI in vector.md.  The uses of VEC_TI are
> also updated.

Okay for trunk.  Thanks!


Segher
diff mbox series

Patch

diff --git a/gcc/config/rs6000/altivec.md b/gcc/config/rs6000/altivec.md
index c4c82b33f8d..c7d2cd0aa88 100644
--- a/gcc/config/rs6000/altivec.md
+++ b/gcc/config/rs6000/altivec.md
@@ -2226,10 +2226,10 @@ 
   "vsl<VI_char> %0,%1,%2"
   [(set_attr "type" "vecsimple")])
 
-(define_insn "altivec_vslq"
-  [(set (match_operand:V1TI 0 "vsx_register_operand" "=v")
-	(ashift:V1TI (match_operand:V1TI 1 "vsx_register_operand" "v")
-		     (match_operand:V1TI 2 "vsx_register_operand" "v")))]
+(define_insn "altivec_vslq_<mode>"
+  [(set (match_operand:VEC_TI 0 "vsx_register_operand" "=v")
+	(ashift:VEC_TI (match_operand:VEC_TI 1 "vsx_register_operand" "v")
+		     (match_operand:VEC_TI 2 "vsx_register_operand" "v")))]
   "TARGET_POWER10"
   /* Shift amount in needs to be in bits[57:63] of 128-bit operand. */
   "vslq %0,%1,%2"
@@ -2243,10 +2243,10 @@ 
   "vsr<VI_char> %0,%1,%2"
   [(set_attr "type" "vecsimple")])
 
-(define_insn "altivec_vsrq"
-  [(set (match_operand:V1TI 0 "vsx_register_operand" "=v")
-	(lshiftrt:V1TI (match_operand:V1TI 1 "vsx_register_operand" "v")
-		       (match_operand:V1TI 2 "vsx_register_operand" "v")))]
+(define_insn "altivec_vsrq_<mode>"
+  [(set (match_operand:VEC_TI 0 "vsx_register_operand" "=v")
+	(lshiftrt:VEC_TI (match_operand:VEC_TI 1 "vsx_register_operand" "v")
+			   (match_operand:VEC_TI 2 "vsx_register_operand" "v")))]
   "TARGET_POWER10"
   /* Shift amount in needs to be in bits[57:63] of 128-bit operand. */
   "vsrq %0,%1,%2"
diff --git a/gcc/config/rs6000/vector.md b/gcc/config/rs6000/vector.md
index 55bbaa9c32f..5695154e316 100644
--- a/gcc/config/rs6000/vector.md
+++ b/gcc/config/rs6000/vector.md
@@ -26,6 +26,9 @@ 
 ;; Vector int modes
 (define_mode_iterator VEC_I [V16QI V8HI V4SI V2DI])
 
+;; 128-bit int modes
+(define_mode_iterator VEC_TI [V1TI TI])
+
 ;; Vector int modes for parity
 (define_mode_iterator VEC_IP [V8HI
 			      V4SI
@@ -1627,17 +1630,17 @@ 
   "")
 
 ;; No immediate version of this 128-bit instruction
-(define_expand "vashlv1ti3"
-  [(set (match_operand:V1TI 0 "vsx_register_operand" "=v")
-	(ashift:V1TI (match_operand:V1TI 1 "vsx_register_operand" "v")
-		     (match_operand:V1TI 2 "vsx_register_operand" "v")))]
+(define_expand "vashl<mode>3"
+  [(set (match_operand:VEC_TI 0 "vsx_register_operand" "=v")
+	(ashift:VEC_TI (match_operand:VEC_TI 1 "vsx_register_operand")
+			 (match_operand:VEC_TI 2 "vsx_register_operand")))]
   "TARGET_POWER10"
 {
   /* Shift amount in needs to be put in bits[57:63] of 128-bit operand2. */
-  rtx tmp = gen_reg_rtx (V1TImode);
+  rtx tmp = gen_reg_rtx (<MODE>mode);
 
   emit_insn (gen_xxswapd_v1ti (tmp, operands[2]));
-  emit_insn (gen_altivec_vslq (operands[0], operands[1], tmp));
+  emit_insn(gen_altivec_vslq_<mode> (operands[0], operands[1], tmp));
   DONE;
 })
 
@@ -1650,17 +1653,17 @@ 
   "")
 
 ;; No immediate version of this 128-bit instruction
-(define_expand "vlshrv1ti3"
-  [(set (match_operand:V1TI 0 "vsx_register_operand" "=v")
-	(lshiftrt:V1TI (match_operand:V1TI 1 "vsx_register_operand" "v")
-		       (match_operand:V1TI 2 "vsx_register_operand" "v")))]
+(define_expand "vlshr<mode>3"
+  [(set (match_operand:VEC_TI 0 "vsx_register_operand" "=v")
+	(lshiftrt:VEC_TI (match_operand:VEC_TI 1 "vsx_register_operand")
+			   (match_operand:VEC_TI 2 "vsx_register_operand")))]
   "TARGET_POWER10"
 {
   /* Shift amount in needs to be put into bits[57:63] of 128-bit operand2. */
-  rtx tmp = gen_reg_rtx (V1TImode);
+  rtx tmp = gen_reg_rtx (<MODE>mode);
 
   emit_insn (gen_xxswapd_v1ti (tmp, operands[2]));
-  emit_insn (gen_altivec_vsrq (operands[0], operands[1], tmp));
+  emit_insn(gen_altivec_vsrq_<mode> (operands[0], operands[1], tmp));
   DONE;
 })
 
diff --git a/gcc/config/rs6000/vsx.md b/gcc/config/rs6000/vsx.md
index ba539549024..587011081e1 100644
--- a/gcc/config/rs6000/vsx.md
+++ b/gcc/config/rs6000/vsx.md
@@ -37,9 +37,6 @@ 
 				  TI
 				  V1TI])
 
-;; Iterator for 128-bit integer types that go in a single vector register.
-(define_mode_iterator VSX_TI [TI V1TI])
-
 ;; Iterator for the 2 32-bit vector types
 (define_mode_iterator VSX_W [V4SF V4SI])
 
@@ -952,9 +949,9 @@ 
 ;; special V1TI container class, which it is not appropriate to use vec_select
 ;; for the type.
 (define_insn "*vsx_le_permute_<mode>"
-  [(set (match_operand:VSX_TI 0 "nonimmediate_operand" "=wa,wa,Z,&r,&r,Q")
-	(rotate:VSX_TI
-	 (match_operand:VSX_TI 1 "input_operand" "wa,Z,wa,r,Q,r")
+  [(set (match_operand:VEC_TI 0 "nonimmediate_operand" "=wa,wa,Z,&r,&r,Q")
+	(rotate:VEC_TI
+	 (match_operand:VEC_TI 1 "input_operand" "wa,Z,wa,r,Q,r")
 	 (const_int 64)))]
   "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
   "@
@@ -968,10 +965,10 @@ 
    (set_attr "type" "vecperm,vecload,vecstore,*,load,store")])
 
 (define_insn_and_split "*vsx_le_undo_permute_<mode>"
-  [(set (match_operand:VSX_TI 0 "vsx_register_operand" "=wa,wa")
-	(rotate:VSX_TI
-	 (rotate:VSX_TI
-	  (match_operand:VSX_TI 1 "vsx_register_operand" "0,wa")
+  [(set (match_operand:VEC_TI 0 "vsx_register_operand" "=wa,wa")
+	(rotate:VEC_TI
+	 (rotate:VEC_TI
+	  (match_operand:VEC_TI 1 "vsx_register_operand" "0,wa")
 	  (const_int 64))
 	 (const_int 64)))]
   "!BYTES_BIG_ENDIAN && TARGET_VSX"
@@ -1043,11 +1040,11 @@ 
 ;; Peepholes to catch loads and stores for TImode if TImode landed in
 ;; GPR registers on a little endian system.
 (define_peephole2
-  [(set (match_operand:VSX_TI 0 "int_reg_operand")
-	(rotate:VSX_TI (match_operand:VSX_TI 1 "memory_operand")
+  [(set (match_operand:VEC_TI 0 "int_reg_operand")
+	(rotate:VEC_TI (match_operand:VEC_TI 1 "memory_operand")
 		       (const_int 64)))
-   (set (match_operand:VSX_TI 2 "int_reg_operand")
-	(rotate:VSX_TI (match_dup 0)
+   (set (match_operand:VEC_TI 2 "int_reg_operand")
+	(rotate:VEC_TI (match_dup 0)
 		       (const_int 64)))]
   "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR
    && (rtx_equal_p (operands[0], operands[2])
@@ -1055,11 +1052,11 @@ 
    [(set (match_dup 2) (match_dup 1))])
 
 (define_peephole2
-  [(set (match_operand:VSX_TI 0 "int_reg_operand")
-	(rotate:VSX_TI (match_operand:VSX_TI 1 "int_reg_operand")
+  [(set (match_operand:VEC_TI 0 "int_reg_operand")
+	(rotate:VEC_TI (match_operand:VEC_TI 1 "int_reg_operand")
 		       (const_int 64)))
-   (set (match_operand:VSX_TI 2 "memory_operand")
-	(rotate:VSX_TI (match_dup 0)
+   (set (match_operand:VEC_TI 2 "memory_operand")
+	(rotate:VEC_TI (match_dup 0)
 		       (const_int 64)))]
   "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR
    && peep2_reg_dead_p (2, operands[0])"
diff --git a/gcc/testsuite/gcc.target/powerpc/int_128bit-runnable.c b/gcc/testsuite/gcc.target/powerpc/int_128bit-runnable.c
index 625b3869118..9f7dbc6cc75 100644
--- a/gcc/testsuite/gcc.target/powerpc/int_128bit-runnable.c
+++ b/gcc/testsuite/gcc.target/powerpc/int_128bit-runnable.c
@@ -52,6 +52,18 @@  void print_i128(__int128_t val)
 
 void abort (void);
 
+__attribute__((noinline))
+__int128_t shift_right (__int128_t a, __uint128_t b)
+{
+  return a >> b;
+}
+
+__attribute__((noinline))
+__int128_t shift_left (__int128_t a, __uint128_t b)
+{
+  return a << b;
+}
+
 int main ()
 {
   int i, result_int;
@@ -102,7 +114,7 @@  int main ()
 #endif
   }
 
-  arg1 = 3;
+  arg1 = vec_result[0];
   uarg2 = 4;
   expected_result = arg1*16;
 
@@ -186,7 +198,7 @@  int main ()
 #endif
   }
 
-  arg1 = 48;
+  arg1 = vec_uresult[0];
   uarg2 = 4;
   expected_result = arg1/16;