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Diffstat (limited to 'test/codegen/noextend.go')
| -rw-r--r-- | test/codegen/noextend.go | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/test/codegen/noextend.go b/test/codegen/noextend.go new file mode 100644 index 0000000..d8e2917 --- /dev/null +++ b/test/codegen/noextend.go @@ -0,0 +1,221 @@ +// asmcheck + +// 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. + +package codegen + +var sval64 [8]int64 +var sval32 [8]int32 +var sval16 [8]int16 +var sval8 [8]int8 +var val64 [8]uint64 +var val32 [8]uint32 +var val16 [8]uint16 +var val8 [8]uint8 + +// Avoid zero/sign extensions following a load +// which has extended the value correctly. +// Note: No tests are done for int8 since +// an extra extension is usually needed due to +// no signed byte load. + +func set16(x8 int8, u8 *uint8, y8 int8, z8 uint8) { + // Truncate not needed, load does sign/zero extend + + // ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" + val16[0] = uint16(*u8) + + // AND not needed due to size + // ppc64:-"ANDCC" + // ppc64le:-"ANDCC" + sval16[1] = 255 & int16(x8+y8) + + // ppc64:-"ANDCC" + // ppc64le:-"ANDCC" + val16[1] = 255 & uint16(*u8+z8) + +} +func shiftidx(u8 *uint8, x16 *int16, u16 *uint16) { + + // ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" + val16[0] = uint16(sval16[*u8>>2]) + + // ppc64:-"MOVH\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" + sval16[1] = int16(val16[*x16>>1]) + + // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" + val16[1] = uint16(sval16[*u16>>2]) + +} + +func setnox(x8 int8, u8 *uint8, y8 *int8, z8 *uint8, x16 *int16, u16 *uint16, x32 *int32, u32 *uint32) { + + // ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" + val16[0] = uint16(*u8) + + // AND not needed due to size + // ppc64:-"ANDCC" + // ppc64le:-"ANDCC" + sval16[1] = 255 & int16(x8+*y8) + + // ppc64:-"ANDCC" + // ppc64le:-"ANDCC" + val16[1] = 255 & uint16(*u8+*z8) + + // ppc64:-"MOVH\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" + sval32[1] = int32(*x16) + + //ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" + //ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" + val32[0] = uint32(*u8) + + // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" + val32[1] = uint32(*u16) + + // ppc64:-"MOVH\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" + sval64[1] = int64(*x16) + + // ppc64:-"MOVW\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVW\tR\\d+,\\sR\\d+" + sval64[2] = int64(*x32) + + //ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" + //ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" + val64[0] = uint64(*u8) + + // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" + val64[1] = uint64(*u16) + + // ppc64:-"MOVWZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVWZ\tR\\d+,\\sR\\d+" + val64[2] = uint64(*u32) +} + +func cmp16(u8 *uint8, x32 *int32, u32 *uint32, x64 *int64, u64 *uint64) bool { + + // ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" + if uint16(*u8) == val16[0] { + return true + } + + // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" + if uint16(*u32>>16) == val16[0] { + return true + } + + // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" + if uint16(*u64>>48) == val16[0] { + return true + } + + // Verify the truncates are using the correct sign. + // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" + if int16(*x32) == sval16[0] { + return true + } + + // ppc64:-"MOVH\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" + if uint16(*u32) == val16[0] { + return true + } + + // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" + if int16(*x64) == sval16[0] { + return true + } + + // ppc64:-"MOVH\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" + if uint16(*u64) == val16[0] { + return true + } + + return false +} + +func cmp32(u8 *uint8, x16 *int16, u16 *uint16, x64 *int64, u64 *uint64) bool { + + // ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" + if uint32(*u8) == val32[0] { + return true + } + + // ppc64:-"MOVH\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" + if int32(*x16) == sval32[0] { + return true + } + + // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" + if uint32(*u16) == val32[0] { + return true + } + + // Verify the truncates are using the correct sign. + // ppc64:-"MOVWZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVWZ\tR\\d+,\\sR\\d+" + if int32(*x64) == sval32[0] { + return true + } + + // ppc64:-"MOVW\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVW\tR\\d+,\\sR\\d+" + if uint32(*u64) == val32[0] { + return true + } + + return false +} + +func cmp64(u8 *uint8, x16 *int16, u16 *uint16, x32 *int32, u32 *uint32) bool { + + // ppc64:-"MOVBZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVBZ\tR\\d+,\\sR\\d+" + if uint64(*u8) == val64[0] { + return true + } + + // ppc64:-"MOVH\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVH\tR\\d+,\\sR\\d+" + if int64(*x16) == sval64[0] { + return true + } + + // ppc64:-"MOVHZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVHZ\tR\\d+,\\sR\\d+" + if uint64(*u16) == val64[0] { + return true + } + + // ppc64:-"MOVW\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVW\tR\\d+,\\sR\\d+" + if int64(*x32) == sval64[0] { + return true + } + + // ppc64:-"MOVWZ\tR\\d+,\\sR\\d+" + // ppc64le:-"MOVWZ\tR\\d+,\\sR\\d+" + if uint64(*u32) == val64[0] { + return true + } + return false +} |