qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-07 16:46:17 -07:00
Code Releases Activity
035db07d7c
go/test/codegen/bool.go

214 lines
5.9 KiB
Go
Raw Normal View History

cmd/compile: optimize x & 1 != 0 to x & 1 on amd64 Triggers a handful of times in std+cmd. Change-Id: I9bb8ce9a5f8bae2547cb61157cd8f256e1b63e76 Reviewed-on: https://go-review.googlesource.com/c/go/+/229602 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2020-04-23 01:21:59 -06:00
// asmcheck
// Copyright 2020 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.
package codegen
// This file contains codegen tests related to boolean simplifications/optimizations.
func convertNeq0B(x uint8, c bool) bool {
// amd64:"ANDL\t[$]1",-"SETNE"
test/codegen: combine trivial PPC64 tests into ppc64x Use a small python script to consolidate duplicate ppc64/ppc64le tests into a single ppc64x codegen test. This makes small assumption that anytime two tests with for different arch/variant combos exists, those tests can be combined into a single ppc64x test. E.x: // ppc64le: foo // ppc64le/power9: foo into // ppc64x: foo or // ppc64: foo // ppc64le: foo into // ppc64x: foo import glob import re files = glob.glob("codegen/*.go") for file in files: with open(file) as f: text = [l for l in f] i = 0 while i < len(text): first = re.match("\s*// ?ppc64(le)?(/power[89])?:(.*)", text[i]) if first: j = i+1 while j < len(text): second = re.match("\s*// ?ppc64(le)?(/power[89])?:(.*)", text[j]) if not second: break if (not first.group(2) or first.group(2) == second.group(2)) and first.group(3) == second.group(3): text[i] = re.sub(" ?ppc64(le|x)?"," ppc64x",text[i]) text=text[:j] + (text[j+1:]) else: j += 1 i+=1 with open(file, 'w') as f: f.write("".join(text)) Change-Id: Ic6b009b54eacaadc5a23db9c5a3bf7331b595821 Reviewed-on: https://go-review.googlesource.com/c/go/+/463220 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Bryan Mills <bcmills@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-25 10:53:10 -07:00
// ppc64x:"ANDCC",-"CMPW",-"ISEL"
cmd/compile: optimize x & 1 != 0 to x & 1 on amd64 Triggers a handful of times in std+cmd. Change-Id: I9bb8ce9a5f8bae2547cb61157cd8f256e1b63e76 Reviewed-on: https://go-review.googlesource.com/c/go/+/229602 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2020-04-23 01:21:59 -06:00
b := x&1 != 0
return c && b
}
func convertNeq0W(x uint16, c bool) bool {
// amd64:"ANDL\t[$]1",-"SETNE"
test/codegen: combine trivial PPC64 tests into ppc64x Use a small python script to consolidate duplicate ppc64/ppc64le tests into a single ppc64x codegen test. This makes small assumption that anytime two tests with for different arch/variant combos exists, those tests can be combined into a single ppc64x test. E.x: // ppc64le: foo // ppc64le/power9: foo into // ppc64x: foo or // ppc64: foo // ppc64le: foo into // ppc64x: foo import glob import re files = glob.glob("codegen/*.go") for file in files: with open(file) as f: text = [l for l in f] i = 0 while i < len(text): first = re.match("\s*// ?ppc64(le)?(/power[89])?:(.*)", text[i]) if first: j = i+1 while j < len(text): second = re.match("\s*// ?ppc64(le)?(/power[89])?:(.*)", text[j]) if not second: break if (not first.group(2) or first.group(2) == second.group(2)) and first.group(3) == second.group(3): text[i] = re.sub(" ?ppc64(le|x)?"," ppc64x",text[i]) text=text[:j] + (text[j+1:]) else: j += 1 i+=1 with open(file, 'w') as f: f.write("".join(text)) Change-Id: Ic6b009b54eacaadc5a23db9c5a3bf7331b595821 Reviewed-on: https://go-review.googlesource.com/c/go/+/463220 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Bryan Mills <bcmills@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-25 10:53:10 -07:00
// ppc64x:"ANDCC",-"CMPW",-"ISEL"
cmd/compile: optimize x & 1 != 0 to x & 1 on amd64 Triggers a handful of times in std+cmd. Change-Id: I9bb8ce9a5f8bae2547cb61157cd8f256e1b63e76 Reviewed-on: https://go-review.googlesource.com/c/go/+/229602 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2020-04-23 01:21:59 -06:00
b := x&1 != 0
return c && b
}
func convertNeq0L(x uint32, c bool) bool {
// amd64:"ANDL\t[$]1",-"SETB"
test/codegen: combine trivial PPC64 tests into ppc64x Use a small python script to consolidate duplicate ppc64/ppc64le tests into a single ppc64x codegen test. This makes small assumption that anytime two tests with for different arch/variant combos exists, those tests can be combined into a single ppc64x test. E.x: // ppc64le: foo // ppc64le/power9: foo into // ppc64x: foo or // ppc64: foo // ppc64le: foo into // ppc64x: foo import glob import re files = glob.glob("codegen/*.go") for file in files: with open(file) as f: text = [l for l in f] i = 0 while i < len(text): first = re.match("\s*// ?ppc64(le)?(/power[89])?:(.*)", text[i]) if first: j = i+1 while j < len(text): second = re.match("\s*// ?ppc64(le)?(/power[89])?:(.*)", text[j]) if not second: break if (not first.group(2) or first.group(2) == second.group(2)) and first.group(3) == second.group(3): text[i] = re.sub(" ?ppc64(le|x)?"," ppc64x",text[i]) text=text[:j] + (text[j+1:]) else: j += 1 i+=1 with open(file, 'w') as f: f.write("".join(text)) Change-Id: Ic6b009b54eacaadc5a23db9c5a3bf7331b595821 Reviewed-on: https://go-review.googlesource.com/c/go/+/463220 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Bryan Mills <bcmills@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-25 10:53:10 -07:00
// ppc64x:"ANDCC",-"CMPW",-"ISEL"
cmd/compile: optimize x & 1 != 0 to x & 1 on amd64 Triggers a handful of times in std+cmd. Change-Id: I9bb8ce9a5f8bae2547cb61157cd8f256e1b63e76 Reviewed-on: https://go-review.googlesource.com/c/go/+/229602 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2020-04-23 01:21:59 -06:00
b := x&1 != 0
return c && b
}
func convertNeq0Q(x uint64, c bool) bool {
cmd/compile: use ANDL for small immediates We can rewrite ANDQ with an immediate fitting in 32bit with an ANDL, which is shorter to encode. Looking at Go binary itself, before the change there was: ANDL: 2337 ANDQ: 4476 After the change: ANDL: 3790 ANDQ: 3024 So we got rid of 1452 ANDQs This makes the Linux x86_64 binary 0.03% smaller. There seems to be an impact on performance. Intel Cascade Lake benchmarks (with perflock): name old time/op new time/op delta BinaryTree17-8 1.91s ± 1% 1.89s ± 1% -1.22% (p=0.000 n=21+18) Fannkuch11-8 2.34s ± 0% 2.34s ± 0% ~ (p=0.052 n=20+20) FmtFprintfEmpty-8 27.7ns ± 1% 27.4ns ± 3% ~ (p=0.497 n=21+21) FmtFprintfString-8 53.2ns ± 0% 51.5ns ± 0% -3.21% (p=0.000 n=20+19) FmtFprintfInt-8 57.3ns ± 0% 55.7ns ± 0% -2.89% (p=0.000 n=19+19) FmtFprintfIntInt-8 92.3ns ± 0% 88.4ns ± 1% -4.23% (p=0.000 n=20+21) FmtFprintfPrefixedInt-8 103ns ± 0% 103ns ± 0% +0.23% (p=0.000 n=20+21) FmtFprintfFloat-8 147ns ± 0% 148ns ± 0% +0.75% (p=0.000 n=20+21) FmtManyArgs-8 384ns ± 0% 381ns ± 0% -0.63% (p=0.000 n=21+21) GobDecode-8 3.86ms ± 1% 3.88ms ± 1% +0.52% (p=0.000 n=20+21) GobEncode-8 2.77ms ± 1% 2.77ms ± 0% ~ (p=0.078 n=21+21) Gzip-8 168ms ± 1% 168ms ± 0% +0.24% (p=0.000 n=20+20) Gunzip-8 25.1ms ± 0% 24.3ms ± 0% -3.03% (p=0.000 n=21+21) HTTPClientServer-8 61.4µs ± 8% 59.1µs ±10% ~ (p=0.088 n=20+21) JSONEncode-8 6.86ms ± 0% 6.70ms ± 0% -2.29% (p=0.000 n=20+19) JSONDecode-8 30.8ms ± 1% 30.6ms ± 1% -0.82% (p=0.000 n=20+20) Mandelbrot200-8 3.85ms ± 0% 3.85ms ± 0% ~ (p=0.191 n=16+17) GoParse-8 2.61ms ± 2% 2.60ms ± 1% ~ (p=0.561 n=21+20) RegexpMatchEasy0_32-8 48.5ns ± 2% 45.9ns ± 3% -5.26% (p=0.000 n=20+21) RegexpMatchEasy0_1K-8 139ns ± 0% 139ns ± 0% +0.27% (p=0.000 n=18+20) RegexpMatchEasy1_32-8 41.3ns ± 0% 42.1ns ± 4% +1.95% (p=0.000 n=17+21) RegexpMatchEasy1_1K-8 216ns ± 2% 216ns ± 0% +0.17% (p=0.020 n=21+19) RegexpMatchMedium_32-8 790ns ± 7% 803ns ± 8% ~ (p=0.178 n=21+21) RegexpMatchMedium_1K-8 23.5µs ± 5% 23.7µs ± 5% ~ (p=0.421 n=21+21) RegexpMatchHard_32-8 1.09µs ± 1% 1.09µs ± 1% -0.53% (p=0.000 n=19+18) RegexpMatchHard_1K-8 33.0µs ± 0% 33.0µs ± 0% ~ (p=0.610 n=21+20) Revcomp-8 348ms ± 0% 353ms ± 0% +1.38% (p=0.000 n=17+18) Template-8 42.0ms ± 1% 41.9ms ± 1% -0.30% (p=0.049 n=20+20) TimeParse-8 185ns ± 0% 185ns ± 0% ~ (p=0.387 n=20+18) TimeFormat-8 237ns ± 1% 241ns ± 1% +1.57% (p=0.000 n=21+21) [Geo mean] 35.4µs 35.2µs -0.66% name old speed new speed delta GobDecode-8 199MB/s ± 1% 198MB/s ± 1% -0.52% (p=0.000 n=20+21) GobEncode-8 277MB/s ± 1% 277MB/s ± 0% ~ (p=0.075 n=21+21) Gzip-8 116MB/s ± 1% 115MB/s ± 0% -0.25% (p=0.000 n=20+20) Gunzip-8 773MB/s ± 0% 797MB/s ± 0% +3.12% (p=0.000 n=21+21) JSONEncode-8 283MB/s ± 0% 290MB/s ± 0% +2.35% (p=0.000 n=20+19) JSONDecode-8 63.0MB/s ± 1% 63.5MB/s ± 1% +0.82% (p=0.000 n=20+20) GoParse-8 22.2MB/s ± 2% 22.3MB/s ± 1% ~ (p=0.539 n=21+20) RegexpMatchEasy0_32-8 660MB/s ± 2% 697MB/s ± 3% +5.57% (p=0.000 n=20+21) RegexpMatchEasy0_1K-8 7.36GB/s ± 0% 7.34GB/s ± 0% -0.26% (p=0.000 n=18+20) RegexpMatchEasy1_32-8 775MB/s ± 0% 761MB/s ± 4% -1.88% (p=0.000 n=17+21) RegexpMatchEasy1_1K-8 4.74GB/s ± 2% 4.74GB/s ± 0% -0.18% (p=0.020 n=21+19) RegexpMatchMedium_32-8 40.6MB/s ± 7% 39.9MB/s ± 9% ~ (p=0.191 n=21+21) RegexpMatchMedium_1K-8 43.7MB/s ± 5% 43.2MB/s ± 5% ~ (p=0.435 n=21+21) RegexpMatchHard_32-8 29.3MB/s ± 1% 29.4MB/s ± 1% +0.53% (p=0.000 n=19+18) RegexpMatchHard_1K-8 31.0MB/s ± 0% 31.0MB/s ± 0% ~ (p=0.572 n=21+20) Revcomp-8 730MB/s ± 0% 720MB/s ± 0% -1.36% (p=0.000 n=17+18) Template-8 46.2MB/s ± 1% 46.3MB/s ± 1% +0.30% (p=0.041 n=20+20) [Geo mean] 204MB/s 205MB/s +0.30% Change-Id: Iac75d0ec184a515ce0e65e19559d5fe2e9840514 Reviewed-on: https://go-review.googlesource.com/c/go/+/354970 Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com> Trust: Josh Bleecher Snyder <josharian@gmail.com> Trust: Keith Randall <khr@golang.org> Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Go Bot <gobot@golang.org>
2021-10-10 09:56:16 -06:00
// amd64:"ANDL\t[$]1",-"SETB"
test/codegen: combine trivial PPC64 tests into ppc64x Use a small python script to consolidate duplicate ppc64/ppc64le tests into a single ppc64x codegen test. This makes small assumption that anytime two tests with for different arch/variant combos exists, those tests can be combined into a single ppc64x test. E.x: // ppc64le: foo // ppc64le/power9: foo into // ppc64x: foo or // ppc64: foo // ppc64le: foo into // ppc64x: foo import glob import re files = glob.glob("codegen/*.go") for file in files: with open(file) as f: text = [l for l in f] i = 0 while i < len(text): first = re.match("\s*// ?ppc64(le)?(/power[89])?:(.*)", text[i]) if first: j = i+1 while j < len(text): second = re.match("\s*// ?ppc64(le)?(/power[89])?:(.*)", text[j]) if not second: break if (not first.group(2) or first.group(2) == second.group(2)) and first.group(3) == second.group(3): text[i] = re.sub(" ?ppc64(le|x)?"," ppc64x",text[i]) text=text[:j] + (text[j+1:]) else: j += 1 i+=1 with open(file, 'w') as f: f.write("".join(text)) Change-Id: Ic6b009b54eacaadc5a23db9c5a3bf7331b595821 Reviewed-on: https://go-review.googlesource.com/c/go/+/463220 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> Reviewed-by: Bryan Mills <bcmills@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org>
2023-01-25 10:53:10 -07:00
// ppc64x:"ANDCC",-"CMP",-"ISEL"
cmd/compile: optimize x & 1 != 0 to x & 1 on amd64 Triggers a handful of times in std+cmd. Change-Id: I9bb8ce9a5f8bae2547cb61157cd8f256e1b63e76 Reviewed-on: https://go-review.googlesource.com/c/go/+/229602 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2020-04-23 01:21:59 -06:00
b := x&1 != 0
return c && b
}
cmd/compile: fix confusion with ANDCCconst in PPC64 rules Currently there is a an ANDconst and an ANDCCconst op in PPC64, which is confusing since they map onto the same instruction. One of these ops sets the result of the AND operation, and the other sets the flag (condition register). This converts ANDCCconst into an op with the 2 expected results: the integer result of the AND and the flag setting. The ANDconst op has been removed. Note that in the PPC64 ISA the only variation of the 'and immediate' is the one that sets the condition bit, which probably led to the original (confusing) implementation. This also adds a few rules to improve the use of ANDCCconst with ISELB and some testcases to verify those improvements. Change-Id: I523703fa4da2098eb995dc3ba744d36fa28e41d4 Reviewed-on: https://go-review.googlesource.com/c/go/+/422015 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Paul Murphy <murp@ibm.com>
2022-08-08 08:36:07 -06:00
func convertNeqBool32(x uint32) bool {
test/codegen: merge identical ppc64 and ppc64le tests Manually consolidate the remaining ppc64/ppc64le test which are not so trivial to automatically merge. The remaining ppc64le tests are limited to cases where load/stores are merged (this only happens on ppc64le) and the race detector (only supported on ppc64le). Change-Id: I1f9c0f3d3ddbb7fbbd8c81fbbd6537394fba63ce Reviewed-on: https://go-review.googlesource.com/c/go/+/463217 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
2023-01-24 10:38:29 -07:00
// ppc64x:"ANDCC",-"CMPW",-"ISEL"
return x&1 != 0
cmd/compile: fix confusion with ANDCCconst in PPC64 rules Currently there is a an ANDconst and an ANDCCconst op in PPC64, which is confusing since they map onto the same instruction. One of these ops sets the result of the AND operation, and the other sets the flag (condition register). This converts ANDCCconst into an op with the 2 expected results: the integer result of the AND and the flag setting. The ANDconst op has been removed. Note that in the PPC64 ISA the only variation of the 'and immediate' is the one that sets the condition bit, which probably led to the original (confusing) implementation. This also adds a few rules to improve the use of ANDCCconst with ISELB and some testcases to verify those improvements. Change-Id: I523703fa4da2098eb995dc3ba744d36fa28e41d4 Reviewed-on: https://go-review.googlesource.com/c/go/+/422015 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Paul Murphy <murp@ibm.com>
2022-08-08 08:36:07 -06:00
}
func convertEqBool32(x uint32) bool {
test/codegen: merge identical ppc64 and ppc64le tests Manually consolidate the remaining ppc64/ppc64le test which are not so trivial to automatically merge. The remaining ppc64le tests are limited to cases where load/stores are merged (this only happens on ppc64le) and the race detector (only supported on ppc64le). Change-Id: I1f9c0f3d3ddbb7fbbd8c81fbbd6537394fba63ce Reviewed-on: https://go-review.googlesource.com/c/go/+/463217 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
2023-01-24 10:38:29 -07:00
// ppc64x:"ANDCC",-"CMPW","XOR",-"ISEL"
return x&1 == 0
cmd/compile: fix confusion with ANDCCconst in PPC64 rules Currently there is a an ANDconst and an ANDCCconst op in PPC64, which is confusing since they map onto the same instruction. One of these ops sets the result of the AND operation, and the other sets the flag (condition register). This converts ANDCCconst into an op with the 2 expected results: the integer result of the AND and the flag setting. The ANDconst op has been removed. Note that in the PPC64 ISA the only variation of the 'and immediate' is the one that sets the condition bit, which probably led to the original (confusing) implementation. This also adds a few rules to improve the use of ANDCCconst with ISELB and some testcases to verify those improvements. Change-Id: I523703fa4da2098eb995dc3ba744d36fa28e41d4 Reviewed-on: https://go-review.googlesource.com/c/go/+/422015 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Paul Murphy <murp@ibm.com>
2022-08-08 08:36:07 -06:00
}
func convertNeqBool64(x uint64) bool {
test/codegen: merge identical ppc64 and ppc64le tests Manually consolidate the remaining ppc64/ppc64le test which are not so trivial to automatically merge. The remaining ppc64le tests are limited to cases where load/stores are merged (this only happens on ppc64le) and the race detector (only supported on ppc64le). Change-Id: I1f9c0f3d3ddbb7fbbd8c81fbbd6537394fba63ce Reviewed-on: https://go-review.googlesource.com/c/go/+/463217 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
2023-01-24 10:38:29 -07:00
// ppc64x:"ANDCC",-"CMP",-"ISEL"
return x&1 != 0
cmd/compile: fix confusion with ANDCCconst in PPC64 rules Currently there is a an ANDconst and an ANDCCconst op in PPC64, which is confusing since they map onto the same instruction. One of these ops sets the result of the AND operation, and the other sets the flag (condition register). This converts ANDCCconst into an op with the 2 expected results: the integer result of the AND and the flag setting. The ANDconst op has been removed. Note that in the PPC64 ISA the only variation of the 'and immediate' is the one that sets the condition bit, which probably led to the original (confusing) implementation. This also adds a few rules to improve the use of ANDCCconst with ISELB and some testcases to verify those improvements. Change-Id: I523703fa4da2098eb995dc3ba744d36fa28e41d4 Reviewed-on: https://go-review.googlesource.com/c/go/+/422015 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Paul Murphy <murp@ibm.com>
2022-08-08 08:36:07 -06:00
}
func convertEqBool64(x uint64) bool {
test/codegen: merge identical ppc64 and ppc64le tests Manually consolidate the remaining ppc64/ppc64le test which are not so trivial to automatically merge. The remaining ppc64le tests are limited to cases where load/stores are merged (this only happens on ppc64le) and the race detector (only supported on ppc64le). Change-Id: I1f9c0f3d3ddbb7fbbd8c81fbbd6537394fba63ce Reviewed-on: https://go-review.googlesource.com/c/go/+/463217 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Paul Murphy <murp@ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
2023-01-24 10:38:29 -07:00
// ppc64x:"ANDCC","XOR",-"CMP",-"ISEL"
return x&1 == 0
cmd/compile: fix confusion with ANDCCconst in PPC64 rules Currently there is a an ANDconst and an ANDCCconst op in PPC64, which is confusing since they map onto the same instruction. One of these ops sets the result of the AND operation, and the other sets the flag (condition register). This converts ANDCCconst into an op with the 2 expected results: the integer result of the AND and the flag setting. The ANDconst op has been removed. Note that in the PPC64 ISA the only variation of the 'and immediate' is the one that sets the condition bit, which probably led to the original (confusing) implementation. This also adds a few rules to improve the use of ANDCCconst with ISELB and some testcases to verify those improvements. Change-Id: I523703fa4da2098eb995dc3ba744d36fa28e41d4 Reviewed-on: https://go-review.googlesource.com/c/go/+/422015 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Paul Murphy <murp@ibm.com>
2022-08-08 08:36:07 -06:00
}
cmd/compile: add rules to emit SETBC/R instructions on power10 This CL adds rules that replaces instances of ISEL that produce a boolean result based on a condition register by SETBC/SETBCR operations. On Power10 these are convereted to SETBC/SETBCR instructions that use one register instead of 3 registers conventionally used by ISEL and hence reduces register pressure. On loops written specifically to exercise such instances of ISEL extensively, a performance improvement of 2.5% is seen on Power10. Also added verification tests to verify correct generation of SETBC/SETBCR instructions on Power10. Change-Id: Ib719897f09d893de40324440a43052dca026e8fa Reviewed-on: https://go-review.googlesource.com/c/go/+/449795 Reviewed-by: Michael Knyszek <mknyszek@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Run-TryBot: Archana Ravindar <aravind5@in.ibm.com> Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com> TryBot-Result: Gopher Robot <gobot@golang.org>
2022-11-11 05:10:59 -07:00
func TestSetEq64(x uint64, y uint64) bool {
// ppc64x/power10:"SETBC\tCR0EQ",-"ISEL"
// ppc64x/power9:"CMP","ISEL",-"SETBC\tCR0EQ"
// ppc64x/power8:"CMP","ISEL",-"SETBC\tCR0EQ"
b := x == y
return b
}
func TestSetNeq64(x uint64, y uint64) bool {
// ppc64x/power10:"SETBCR\tCR0EQ",-"ISEL"
// ppc64x/power9:"CMP","ISEL",-"SETBCR\tCR0EQ"
// ppc64x/power8:"CMP","ISEL",-"SETBCR\tCR0EQ"
b := x != y
return b
}
func TestSetLt64(x uint64, y uint64) bool {
// ppc64x/power10:"SETBC\tCR0GT",-"ISEL"
// ppc64x/power9:"CMP","ISEL",-"SETBC\tCR0GT"
// ppc64x/power8:"CMP","ISEL",-"SETBC\tCR0GT"
b := x < y
return b
}
func TestSetLe64(x uint64, y uint64) bool {
// ppc64x/power10:"SETBCR\tCR0LT",-"ISEL"
// ppc64x/power9:"CMP","ISEL",-"SETBCR\tCR0LT"
// ppc64x/power8:"CMP","ISEL",-"SETBCR\tCR0LT"
b := x <= y
return b
}
func TestSetGt64(x uint64, y uint64) bool {
// ppc64x/power10:"SETBC\tCR0LT",-"ISEL"
// ppc64x/power9:"CMP","ISEL",-"SETBC\tCR0LT"
// ppc64x/power8:"CMP","ISEL",-"SETBC\tCR0LT"
b := x > y
return b
}
func TestSetGe64(x uint64, y uint64) bool {
// ppc64x/power10:"SETBCR\tCR0GT",-"ISEL"
// ppc64x/power9:"CMP","ISEL",-"SETBCR\tCR0GT"
// ppc64x/power8:"CMP","ISEL",-"SETBCR\tCR0GT"
b := x >= y
return b
}
func TestSetLtFp64(x float64, y float64) bool {
// ppc64x/power10:"SETBC\tCR0LT",-"ISEL"
// ppc64x/power9:"FCMP","ISEL",-"SETBC\tCR0LT"
// ppc64x/power8:"FCMP","ISEL",-"SETBC\tCR0LT"
b := x < y
return b
}
func TestSetLeFp64(x float64, y float64) bool {
// ppc64x/power10:"SETBC\tCR0LT","SETBC\tCR0EQ","OR",-"ISEL",-"ISEL"
// ppc64x/power9:"ISEL","ISEL",-"SETBC\tCR0LT",-"SETBC\tCR0EQ","OR"
// ppc64x/power8:"ISEL","ISEL",-"SETBC\tCR0LT",-"SETBC\tCR0EQ","OR"
b := x <= y
return b
}
func TestSetGtFp64(x float64, y float64) bool {
// ppc64x/power10:"SETBC\tCR0LT",-"ISEL"
// ppc64x/power9:"FCMP","ISEL",-"SETBC\tCR0LT"
// ppc64x/power8:"FCMP","ISEL",-"SETBC\tCR0LT"
b := x > y
return b
}
func TestSetGeFp64(x float64, y float64) bool {
// ppc64x/power10:"SETBC\tCR0LT","SETBC\tCR0EQ","OR",-"ISEL",-"ISEL"
// ppc64x/power9:"ISEL","ISEL",-"SETBC\tCR0LT",-"SETBC\tCR0EQ","OR"
// ppc64x/power8:"ISEL","ISEL",-"SETBC\tCR0LT",-"SETBC\tCR0EQ","OR"
b := x >= y
return b
}
func TestSetInvEq64(x uint64, y uint64) bool {
// ppc64x/power10:"SETBCR\tCR0EQ",-"ISEL"
// ppc64x/power9:"CMP","ISEL",-"SETBCR\tCR0EQ"
// ppc64x/power8:"CMP","ISEL",-"SETBCR\tCR0EQ"
b := !(x == y)
return b
}
func TestSetInvNeq64(x uint64, y uint64) bool {
// ppc64x/power10:"SETBC\tCR0EQ",-"ISEL"
// ppc64x/power9:"CMP","ISEL",-"SETBC\tCR0EQ"
// ppc64x/power8:"CMP","ISEL",-"SETBC\tCR0EQ"
b := !(x != y)
return b
}
func TestSetInvLt64(x uint64, y uint64) bool {
// ppc64x/power10:"SETBCR\tCR0GT",-"ISEL"
// ppc64x/power9:"CMP","ISEL",-"SETBCR\tCR0GT"
// ppc64x/power8:"CMP","ISEL",-"SETBCR\tCR0GT"
b := !(x < y)
return b
}
func TestSetInvLe64(x uint64, y uint64) bool {
// ppc64x/power10:"SETBC\tCR0LT",-"ISEL"
// ppc64x/power9:"CMP","ISEL",-"SETBC\tCR0LT"
// ppc64x/power8:"CMP","ISEL",-"SETBC\tCR0LT"
b := !(x <= y)
return b
}
func TestSetInvGt64(x uint64, y uint64) bool {
// ppc64x/power10:"SETBCR\tCR0LT",-"ISEL"
// ppc64x/power9:"CMP","ISEL",-"SETBCR\tCR0LT"
// ppc64x/power8:"CMP","ISEL",-"SETBCR\tCR0LT"
b := !(x > y)
return b
}
func TestSetInvGe64(x uint64, y uint64) bool {
// ppc64x/power10:"SETBC\tCR0GT",-"ISEL"
// ppc64x/power9:"CMP","ISEL",-"SETBC\tCR0GT"
// ppc64x/power8:"CMP","ISEL",-"SETBC\tCR0GT"
b := !(x >= y)
return b
}
func TestSetInvEqFp64(x float64, y float64) bool {
// ppc64x/power10:"SETBCR\tCR0EQ",-"ISEL"
// ppc64x/power9:"FCMP","ISEL",-"SETBCR\tCR0EQ"
// ppc64x/power8:"FCMP","ISEL",-"SETBCR\tCR0EQ"
b := !(x == y)
return b
}
func TestSetInvNeqFp64(x float64, y float64) bool {
// ppc64x/power10:"SETBC\tCR0EQ",-"ISEL"
// ppc64x/power9:"FCMP","ISEL",-"SETBC\tCR0EQ"
// ppc64x/power8:"FCMP","ISEL",-"SETBC\tCR0EQ"
b := !(x != y)
return b
}
func TestSetInvLtFp64(x float64, y float64) bool {
// ppc64x/power10:"SETBCR\tCR0LT",-"ISEL"
// ppc64x/power9:"FCMP","ISEL",-"SETBCR\tCR0LT"
// ppc64x/power8:"FCMP","ISEL",-"SETBCR\tCR0LT"
b := !(x < y)
return b
}
func TestSetInvLeFp64(x float64, y float64) bool {
// ppc64x/power10:"SETBC\tCR0LT",-"ISEL"
// ppc64x/power9:"FCMP","ISEL",-"SETBC\tCR0LT"
// ppc64x/power8:"FCMP","ISEL",-"SETBC\tCR0LT"
b := !(x <= y)
return b
}
func TestSetInvGtFp64(x float64, y float64) bool {
// ppc64x/power10:"SETBCR\tCR0LT",-"ISEL"
// ppc64x/power9:"FCMP","ISEL",-"SETBCR\tCR0LT"
// ppc64x/power8:"FCMP","ISEL",-"SETBCR\tCR0LT"
b := !(x > y)
return b
}
func TestSetInvGeFp64(x float64, y float64) bool {
// ppc64x/power10:"SETBC\tCR0LT",-"ISEL"
// ppc64x/power9:"FCMP","ISEL",-"SETBC\tCR0LT"
// ppc64x/power8:"FCMP","ISEL",-"SETBC\tCR0LT"
b := !(x >= y)
return b
}
Copy Permalink