diff options
Diffstat (limited to 'src/cmd')
| -rw-r--r-- | src/cmd/asm/internal/asm/testdata/arm64.s | 9 | ||||
| -rw-r--r-- | src/cmd/internal/obj/arm64/a.out.go | 9 | ||||
| -rw-r--r-- | src/cmd/internal/obj/arm64/asm7.go | 4 |
3 files changed, 19 insertions, 3 deletions
diff --git a/src/cmd/asm/internal/asm/testdata/arm64.s b/src/cmd/asm/internal/asm/testdata/arm64.s index 9ca6f2f166..28b34e3d72 100644 --- a/src/cmd/asm/internal/asm/testdata/arm64.s +++ b/src/cmd/asm/internal/asm/testdata/arm64.s @@ -45,6 +45,15 @@ TEXT foo(SB), 7, $-8 ADD R1->33, R2 AND R1@>33, R2 +// logical ops +// make sure constants get encoded into an instruction when it could + AND $(1<<63), R1 // AND $-9223372036854775808, R1 // 21004192 + AND $(1<<63-1), R1 // AND $9223372036854775807, R1 // 21f84092 + ORR $(1<<63), R1 // ORR $-9223372036854775808, R1 // 210041b2 + ORR $(1<<63-1), R1 // ORR $9223372036854775807, R1 // 21f840b2 + EOR $(1<<63), R1 // EOR $-9223372036854775808, R1 // 210041d2 + EOR $(1<<63-1), R1 // EOR $9223372036854775807, R1 // 21f840d2 + // // CLS // diff --git a/src/cmd/internal/obj/arm64/a.out.go b/src/cmd/internal/obj/arm64/a.out.go index bed129d891..f192a51b0a 100644 --- a/src/cmd/internal/obj/arm64/a.out.go +++ b/src/cmd/internal/obj/arm64/a.out.go @@ -254,6 +254,9 @@ const ( ) const ( + // optab is sorted based on the order of these constants + // and the first match is chosen. + // The more specific class needs to come earlier. C_NONE = iota C_REG // R0..R30 C_RSP // R0..R30, RSP @@ -266,13 +269,13 @@ const ( C_COND // EQ, NE, etc C_ZCON // $0 or ZR + C_ABCON0 // could be C_ADDCON0 or C_BITCON C_ADDCON0 // 12-bit unsigned, unshifted + C_ABCON // could be C_ADDCON or C_BITCON C_ADDCON // 12-bit unsigned, shifted left by 0 or 12 + C_MBCON // could be C_MOVCON or C_BITCON C_MOVCON // generated by a 16-bit constant, optionally inverted and/or shifted by multiple of 16 C_BITCON // bitfield and logical immediate masks - C_ABCON0 // could be C_ADDCON0 or C_BITCON - C_ABCON // could be C_ADDCON or C_BITCON - C_MBCON // could be C_MOVCON or C_BITCON C_LCON // 32-bit constant C_VCON // 64-bit constant C_FCON // floating-point constant diff --git a/src/cmd/internal/obj/arm64/asm7.go b/src/cmd/internal/obj/arm64/asm7.go index 66a324943d..c0a19d2d2a 100644 --- a/src/cmd/internal/obj/arm64/asm7.go +++ b/src/cmd/internal/obj/arm64/asm7.go @@ -190,6 +190,10 @@ var optab = []Optab{ {AAND, C_REG, C_NONE, C_REG, 1, 4, 0, 0, 0}, {ABIC, C_REG, C_REG, C_REG, 1, 4, 0, 0, 0}, {ABIC, C_REG, C_NONE, C_REG, 1, 4, 0, 0, 0}, + {AAND, C_MBCON, C_REG, C_REG, 53, 4, 0, 0, 0}, + {AAND, C_MBCON, C_NONE, C_REG, 53, 4, 0, 0, 0}, + {ABIC, C_MBCON, C_REG, C_REG, 53, 4, 0, 0, 0}, + {ABIC, C_MBCON, C_NONE, C_REG, 53, 4, 0, 0, 0}, {AAND, C_BITCON, C_REG, C_REG, 53, 4, 0, 0, 0}, {AAND, C_BITCON, C_NONE, C_REG, 53, 4, 0, 0, 0}, {ABIC, C_BITCON, C_REG, C_REG, 53, 4, 0, 0, 0}, |