Adding upstream version 1.20.14.upstream/1.20.14upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 58 insertions, 0 deletions

diff --git a/src/runtime/internal/sys/intrinsics_386.s b/src/runtime/internal/sys/intrinsics_386.s
new file mode 100644
index 0000000..f33ade0
--- /dev/null
+++ b/src/runtime/internal/sys/intrinsics_386.s
@@ -0,0 +1,58 @@
+// Copyright 2016 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 "textflag.h"
+
+TEXT runtime∕internal∕sys·TrailingZeros64(SB), NOSPLIT, $0-12
+	// Try low 32 bits.
+	MOVL	x_lo+0(FP), AX
+	BSFL	AX, AX
+	JZ	tryhigh
+	MOVL	AX, ret+8(FP)
+	RET
+
+tryhigh:
+	// Try high 32 bits.
+	MOVL	x_hi+4(FP), AX
+	BSFL	AX, AX
+	JZ	none
+	ADDL	$32, AX
+	MOVL	AX, ret+8(FP)
+	RET
+
+none:
+	// No bits are set.
+	MOVL	$64, ret+8(FP)
+	RET
+
+TEXT runtime∕internal∕sys·TrailingZeros32(SB), NOSPLIT, $0-8
+	MOVL	x+0(FP), AX
+	BSFL	AX, AX
+	JNZ	2(PC)
+	MOVL	$32, AX
+	MOVL	AX, ret+4(FP)
+	RET
+
+TEXT runtime∕internal∕sys·TrailingZeros8(SB), NOSPLIT, $0-8
+	MOVBLZX	x+0(FP), AX
+	BSFL	AX, AX
+	JNZ	2(PC)
+	MOVL	$8, AX
+	MOVL	AX, ret+4(FP)
+	RET
+
+TEXT runtime∕internal∕sys·Bswap64(SB), NOSPLIT, $0-16
+	MOVL	x_lo+0(FP), AX
+	MOVL	x_hi+4(FP), BX
+	BSWAPL	AX
+	BSWAPL	BX
+	MOVL	BX, ret_lo+8(FP)
+	MOVL	AX, ret_hi+12(FP)
+	RET
+
+TEXT runtime∕internal∕sys·Bswap32(SB), NOSPLIT, $0-8
+	MOVL	x+0(FP), AX
+	BSWAPL	AX
+	MOVL	AX, ret+4(FP)
+	RET