diff options
Diffstat (limited to 'vendor/github.com/tetratelabs/wazero/internal/engine')
| -rw-r--r-- | vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/backend/isa/amd64/machine.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/backend/isa/amd64/machine.go b/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/backend/isa/amd64/machine.go index 7c27c92af..fd0d69ca9 100644 --- a/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/backend/isa/amd64/machine.go +++ b/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/backend/isa/amd64/machine.go @@ -1918,6 +1918,9 @@ func (m *machine) lowerCall(si *ssa.Instruction) { for i := regalloc.RealReg(0); i < 16; i++ { m.insert(m.allocateInstr().asDefineUninitializedReg(regInfo.RealRegToVReg[xmm0+i])) } + // Since Go 1.24 it may also use DX, which is not reserved for the function call's 3 args. + // https://github.com/golang/go/blob/go1.24.0/src/runtime/memmove_amd64.s#L123 + m.insert(m.allocateInstr().asDefineUninitializedReg(regInfo.RealRegToVReg[rdx])) } if isDirectCall { @@ -1933,6 +1936,7 @@ func (m *machine) lowerCall(si *ssa.Instruction) { for i := regalloc.RealReg(0); i < 16; i++ { m.insert(m.allocateInstr().asNopUseReg(regInfo.RealRegToVReg[xmm0+i])) } + m.insert(m.allocateInstr().asNopUseReg(regInfo.RealRegToVReg[rdx])) } var index int |