From 109be507377fe7f6e8819ac94041d3fdcdf6fd2f Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 15:18:25 +0200 Subject: Adding upstream version 1.19.8. Signed-off-by: Daniel Baumann --- test/codegen/switch.go | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 test/codegen/switch.go (limited to 'test/codegen/switch.go') diff --git a/test/codegen/switch.go b/test/codegen/switch.go new file mode 100644 index 0000000..af37628 --- /dev/null +++ b/test/codegen/switch.go @@ -0,0 +1,74 @@ +// asmcheck + +// Copyright 2019 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. + +// These tests check code generation of switch statements. + +package codegen + +// see issue 33934 +func f(x string) int { + // amd64:-`cmpstring` + switch x { + case "": + return -1 + case "1", "2", "3": + return -2 + default: + return -3 + } +} + +// use jump tables for 8+ int cases +func square(x int) int { + // amd64:`JMP\s\(.*\)\(.*\)$` + // arm64:`MOVD\s\(R.*\)\(R.*<<3\)`,`JMP\s\(R.*\)$` + switch x { + case 1: + return 1 + case 2: + return 4 + case 3: + return 9 + case 4: + return 16 + case 5: + return 25 + case 6: + return 36 + case 7: + return 49 + case 8: + return 64 + default: + return x * x + } +} + +// use jump tables for 8+ string lengths +func length(x string) int { + // amd64:`JMP\s\(.*\)\(.*\)$` + // arm64:`MOVD\s\(R.*\)\(R.*<<3\)`,`JMP\s\(R.*\)$` + switch x { + case "a": + return 1 + case "bb": + return 2 + case "ccc": + return 3 + case "dddd": + return 4 + case "eeeee": + return 5 + case "ffffff": + return 6 + case "ggggggg": + return 7 + case "hhhhhhhh": + return 8 + default: + return len(x) + } +} -- cgit v1.2.3