ppc64x: code cleanup in assembly files

Replacing Branch Conditional (BC) with its extended mnemonic form of  BDNZ and BDZ.
- BC 16, 0, target can be replaced by BDNZ target
- BC 18, 0, target can be replaced by BDZ target

Change-Id: I1259e207f2a40d0b72780d5421f7449ddc006dc5
Cq-Include-Trybots: luci.golang.try:gotip-linux-ppc64_power10,gotip-linux-ppc64_power8,gotip-linux-ppc64le_power8,gotip-linux-ppc64le_power9,gotip-linux-ppc64le_power10
Reviewed-on: https://go-review.googlesource.com/c/go/+/585077
Reviewed-by: Carlos Amedee <carlos@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>

diff --git a/src/crypto/aes/asm_ppc64x.s b/src/crypto/aes/asm_ppc64x.s
index 859cffa3eef233fff20f4a43c5e1d31e97847852..5a2b210920ed79f6961807f7b02ff211ae40e5f2 100644 (file)
--- a/src/crypto/aes/asm_ppc64x.s
+++ b/src/crypto/aes/asm_ppc64x.s
@@ -151,7 +151,7 @@ loop128:
        VXOR    IN0, TMP, IN0       // vxor 1,1,6
        VADDUWM RCON, RCON, RCON    // vadduwm 4,4,4
        VXOR    IN0, KEY, IN0       // vxor 1,1,3
-       BC      0x10, 0, loop128    // bdnz .Loop128
+       BDNZ    loop128
 
        LVX     (PTR)(R0), RCON // lvx 4,0,6     Last two round keys
 
@@ -256,7 +256,7 @@ loop192:
        STXVD2X IN0, (R0+OUTDEC)
        ADD     $16, OUTENC, OUTENC
        ADD     $-16, OUTDEC, OUTDEC
-       BC      0x10, 0, loop192                 // bdnz .Loop192
+       BDNZ    loop192
 
        RET
 
@@ -289,7 +289,7 @@ loop256:
        STXVD2X IN0, (R0+OUTDEC)
        ADD     $16, OUTENC, OUTENC
        ADD     $-16, OUTDEC, OUTDEC
-       BC      0x12, 0, done                    // bdz .Ldone
+       BDZ     done
 
        VSPLTW  $3, IN0, KEY        // vspltw 3,1,3
        VSLDOI  $12, ZERO, IN1, TMP // vsldoi 6,0,2,12

diff --git a/src/crypto/md5/md5block_ppc64x.s b/src/crypto/md5/md5block_ppc64x.s
index f607040d02e664abee31e60748407d95ed7900a7..49a369548ee7eee41dfed95f840070bd56db837c 100644 (file)
--- a/src/crypto/md5/md5block_ppc64x.s
+++ b/src/crypto/md5/md5block_ppc64x.s
@@ -200,7 +200,7 @@ loop:
        ADD     R16, R4
        ADD     R17, R5
        ADD     $64, R6
-       BC      16, 0, loop // bdnz
+       BDNZ    loop
 
 end:
        MOVD    dig+0(FP), R10

diff --git a/src/math/big/arith_ppc64x.s b/src/math/big/arith_ppc64x.s
index 330bc7e46cbe177e40e7b378935de51d1b128607..5e7a2da3a3751f5895cb898b8a1c08006887aaf4 100644 (file)
--- a/src/math/big/arith_ppc64x.s
+++ b/src/math/big/arith_ppc64x.s
@@ -62,7 +62,7 @@ loop:
        MOVD  R22, 24(R10)    // z[i+2]
        MOVDU R23, 32(R10)    // z[i+3]
        ADD   $-4, R7         // R7 = z_len - 4
-       BC  16, 0, loop       // bdnz
+       BDNZ  loop
 
        // We may have more elements to read
        CMP   R0, R7
@@ -151,7 +151,7 @@ loop:
        MOVD  R22, 24(R10)    // z[i+2]
        MOVDU R23, 32(R10)    // z[i+3]
        ADD   $-4, R7         // R7 = z_len - 4
-       BC  16, 0, loop       // bdnz
+       BDNZ  loop
 
        // We may have more elements to read
        CMP   R0, R7
@@ -230,7 +230,7 @@ loop:
        MOVD  R26, 24(R10)      // z[i+2]
        MOVDU R27, 32(R10)      // z[i+3]
        ADD   $-4, R11          // R11 = z_len - 4
-       BC    16, 0, loop       // bdnz
+       BDNZ  loop
 
        // We may have some elements to read
        CMP R0, R11
@@ -307,7 +307,7 @@ loop:
        MOVD  R22, 24(R10)
        MOVDU R23, 32(R10)
        ADD   $-4, R11
-       BC    16, 0, loop       // bdnz
+       BDNZ  loop
 
        // We may have some elements to read
        CMP   R0, R11
@@ -550,7 +550,7 @@ loop:
        MOVD    R26, 24(R10)      // z[i+2]
        MOVDU   R27, 32(R10)      // z[i+3]
        ADD     $-4, R11          // R11 = z_len - 4
-       BC      16, 0, loop       // bdnz
+       BDNZ    loop
 
        // We may have some elements to read
        CMP   R0, R11