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Diffstat (limited to '')
| -rw-r--r-- | test/codegen/fuse.go | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/test/codegen/fuse.go b/test/codegen/fuse.go new file mode 100644 index 0000000..79dd337 --- /dev/null +++ b/test/codegen/fuse.go @@ -0,0 +1,197 @@ +// 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. + +package codegen + +// Notes: +// - these examples use channels to provide a source of +// unknown values that cannot be optimized away +// - these examples use for loops to force branches +// backward (predicted taken) + +// ---------------------------------- // +// signed integer range (conjunction) // +// ---------------------------------- // + +func si1c(c <-chan int64) { + // amd64:"CMPQ\t.+, [$]256" + // s390x:"CLGIJ\t[$]12, R[0-9]+, [$]255" + for x := <-c; x >= 0 && x < 256; x = <-c { + } +} + +func si2c(c <-chan int32) { + // amd64:"CMPL\t.+, [$]256" + // s390x:"CLIJ\t[$]12, R[0-9]+, [$]255" + for x := <-c; x >= 0 && x < 256; x = <-c { + } +} + +func si3c(c <-chan int16) { + // amd64:"CMPW\t.+, [$]256" + // s390x:"CLIJ\t[$]12, R[0-9]+, [$]255" + for x := <-c; x >= 0 && x < 256; x = <-c { + } +} + +func si4c(c <-chan int8) { + // amd64:"CMPB\t.+, [$]10" + // s390x:"CLIJ\t[$]4, R[0-9]+, [$]10" + for x := <-c; x >= 0 && x < 10; x = <-c { + } +} + +func si5c(c <-chan int64) { + // amd64:"CMPQ\t.+, [$]251","ADDQ\t[$]-5," + // s390x:"CLGIJ\t[$]4, R[0-9]+, [$]251","ADD\t[$]-5," + for x := <-c; x < 256 && x > 4; x = <-c { + } +} + +func si6c(c <-chan int32) { + // amd64:"CMPL\t.+, [$]255","DECL\t" + // s390x:"CLIJ\t[$]12, R[0-9]+, [$]255","ADDW\t[$]-1," + for x := <-c; x > 0 && x <= 256; x = <-c { + } +} + +func si7c(c <-chan int16) { + // amd64:"CMPW\t.+, [$]60","ADDL\t[$]10," + // s390x:"CLIJ\t[$]12, R[0-9]+, [$]60","ADDW\t[$]10," + for x := <-c; x >= -10 && x <= 50; x = <-c { + } +} + +func si8c(c <-chan int8) { + // amd64:"CMPB\t.+, [$]126","ADDL\t[$]126," + // s390x:"CLIJ\t[$]4, R[0-9]+, [$]126","ADDW\t[$]126," + for x := <-c; x >= -126 && x < 0; x = <-c { + } +} + +// ---------------------------------- // +// signed integer range (disjunction) // +// ---------------------------------- // + +func si1d(c <-chan int64) { + // amd64:"CMPQ\t.+, [$]256" + // s390x:"CLGIJ\t[$]2, R[0-9]+, [$]255" + for x := <-c; x < 0 || x >= 256; x = <-c { + } +} + +func si2d(c <-chan int32) { + // amd64:"CMPL\t.+, [$]256" + // s390x:"CLIJ\t[$]2, R[0-9]+, [$]255" + for x := <-c; x < 0 || x >= 256; x = <-c { + } +} + +func si3d(c <-chan int16) { + // amd64:"CMPW\t.+, [$]256" + // s390x:"CLIJ\t[$]2, R[0-9]+, [$]255" + for x := <-c; x < 0 || x >= 256; x = <-c { + } +} + +func si4d(c <-chan int8) { + // amd64:"CMPB\t.+, [$]10" + // s390x:"CLIJ\t[$]10, R[0-9]+, [$]10" + for x := <-c; x < 0 || x >= 10; x = <-c { + } +} + +func si5d(c <-chan int64) { + // amd64:"CMPQ\t.+, [$]251","ADDQ\t[$]-5," + // s390x:"CLGIJ\t[$]10, R[0-9]+, [$]251","ADD\t[$]-5," + for x := <-c; x >= 256 || x <= 4; x = <-c { + } +} + +func si6d(c <-chan int32) { + // amd64:"CMPL\t.+, [$]255","DECL\t" + // s390x:"CLIJ\t[$]2, R[0-9]+, [$]255","ADDW\t[$]-1," + for x := <-c; x <= 0 || x > 256; x = <-c { + } +} + +func si7d(c <-chan int16) { + // amd64:"CMPW\t.+, [$]60","ADDL\t[$]10," + // s390x:"CLIJ\t[$]2, R[0-9]+, [$]60","ADDW\t[$]10," + for x := <-c; x < -10 || x > 50; x = <-c { + } +} + +func si8d(c <-chan int8) { + // amd64:"CMPB\t.+, [$]126","ADDL\t[$]126," + // s390x:"CLIJ\t[$]10, R[0-9]+, [$]126","ADDW\t[$]126," + for x := <-c; x < -126 || x >= 0; x = <-c { + } +} + +// ------------------------------------ // +// unsigned integer range (conjunction) // +// ------------------------------------ // + +func ui1c(c <-chan uint64) { + // amd64:"CMPQ\t.+, [$]251","ADDQ\t[$]-5," + // s390x:"CLGIJ\t[$]4, R[0-9]+, [$]251","ADD\t[$]-5," + for x := <-c; x < 256 && x > 4; x = <-c { + } +} + +func ui2c(c <-chan uint32) { + // amd64:"CMPL\t.+, [$]255","DECL\t" + // s390x:"CLIJ\t[$]12, R[0-9]+, [$]255","ADDW\t[$]-1," + for x := <-c; x > 0 && x <= 256; x = <-c { + } +} + +func ui3c(c <-chan uint16) { + // amd64:"CMPW\t.+, [$]40","ADDL\t[$]-10," + // s390x:"CLIJ\t[$]12, R[0-9]+, [$]40","ADDW\t[$]-10," + for x := <-c; x >= 10 && x <= 50; x = <-c { + } +} + +func ui4c(c <-chan uint8) { + // amd64:"CMPB\t.+, [$]2","ADDL\t[$]-126," + // s390x:"CLIJ\t[$]4, R[0-9]+, [$]2","ADDW\t[$]-126," + for x := <-c; x >= 126 && x < 128; x = <-c { + } +} + +// ------------------------------------ // +// unsigned integer range (disjunction) // +// ------------------------------------ // + +func ui1d(c <-chan uint64) { + // amd64:"CMPQ\t.+, [$]251","ADDQ\t[$]-5," + // s390x:"CLGIJ\t[$]10, R[0-9]+, [$]251","ADD\t[$]-5," + for x := <-c; x >= 256 || x <= 4; x = <-c { + } +} + +func ui2d(c <-chan uint32) { + // amd64:"CMPL\t.+, [$]254","ADDL\t[$]-2," + // s390x:"CLIJ\t[$]2, R[0-9]+, [$]254","ADDW\t[$]-2," + for x := <-c; x <= 1 || x > 256; x = <-c { + } +} + +func ui3d(c <-chan uint16) { + // amd64:"CMPW\t.+, [$]40","ADDL\t[$]-10," + // s390x:"CLIJ\t[$]2, R[0-9]+, [$]40","ADDW\t[$]-10," + for x := <-c; x < 10 || x > 50; x = <-c { + } +} + +func ui4d(c <-chan uint8) { + // amd64:"CMPB\t.+, [$]2","ADDL\t[$]-126," + // s390x:"CLIJ\t[$]10, R[0-9]+, [$]2","ADDW\t[$]-126," + for x := <-c; x < 126 || x >= 128; x = <-c { + } +} |