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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 19:19:13 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 19:19:13 +0000
commitccd992355df7192993c666236047820244914598 (patch)
treef00fea65147227b7743083c6148396f74cd66935 /src/internal/bytealg/indexbyte_386.s
parentInitial commit. (diff)
downloadgolang-1.21-ccd992355df7192993c666236047820244914598.tar.xz
golang-1.21-ccd992355df7192993c666236047820244914598.zip
Adding upstream version 1.21.8.upstream/1.21.8
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/internal/bytealg/indexbyte_386.s')
-rw-r--r--src/internal/bytealg/indexbyte_386.s34
1 files changed, 34 insertions, 0 deletions
diff --git a/src/internal/bytealg/indexbyte_386.s b/src/internal/bytealg/indexbyte_386.s
new file mode 100644
index 0000000..8a03054
--- /dev/null
+++ b/src/internal/bytealg/indexbyte_386.s
@@ -0,0 +1,34 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "go_asm.h"
+#include "textflag.h"
+
+TEXT ·IndexByte(SB),NOSPLIT,$0-20
+ MOVL b_base+0(FP), SI
+ MOVL b_len+4(FP), CX
+ MOVB c+12(FP), AL
+ MOVL SI, DI
+ CLD; REPN; SCASB
+ JZ 3(PC)
+ MOVL $-1, ret+16(FP)
+ RET
+ SUBL SI, DI
+ SUBL $1, DI
+ MOVL DI, ret+16(FP)
+ RET
+
+TEXT ·IndexByteString(SB),NOSPLIT,$0-16
+ MOVL s_base+0(FP), SI
+ MOVL s_len+4(FP), CX
+ MOVB c+8(FP), AL
+ MOVL SI, DI
+ CLD; REPN; SCASB
+ JZ 3(PC)
+ MOVL $-1, ret+12(FP)
+ RET
+ SUBL SI, DI
+ SUBL $1, DI
+ MOVL DI, ret+12(FP)
+ RET