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| author | Jacob Young <jacobly0@users.noreply.github.com> | 2023-04-14 04:16:53 -0400 |
|---|---|---|
| committer | Jacob Young <jacobly0@users.noreply.github.com> | 2023-04-16 17:05:34 -0400 |
| commit | 08055f2942abe873283ec46f2656ecb932f915b3 (patch) | |
| tree | 1f1595316b7fe47ecf9426c5c06397db8fa1bdf4 /src | |
| parent | 7fad555e5e16e6cb71554981394387a0622093b0 (diff) | |
| download | zig-08055f2942abe873283ec46f2656ecb932f915b3.tar.gz zig-08055f2942abe873283ec46f2656ecb932f915b3.zip | |
x86_64: fix @clz direction
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/x86_64/CodeGen.zig | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/arch/x86_64/CodeGen.zig b/src/arch/x86_64/CodeGen.zig index 20c945e451..196dc330fb 100644 --- a/src/arch/x86_64/CodeGen.zig +++ b/src/arch/x86_64/CodeGen.zig @@ -3124,7 +3124,7 @@ fn airClz(self: *Self, inst: Air.Inst.Index) !void { const imm_reg = try self.copyToTmpRegister(dst_ty, .{ .immediate = src_bits ^ (src_bits - 1), }); - try self.genBinOpMir(.bsf, src_ty, dst_mcv, mat_src_mcv); + try self.genBinOpMir(.bsr, src_ty, dst_mcv, mat_src_mcv); const cmov_abi_size = @max(@intCast(u32, dst_ty.abiSize(self.target.*)), 2); try self.asmCmovccRegisterRegister( @@ -3138,7 +3138,7 @@ fn airClz(self: *Self, inst: Air.Inst.Index) !void { const imm_reg = try self.copyToTmpRegister(dst_ty, .{ .immediate = @as(u64, math.maxInt(u64)) >> @intCast(u6, 64 - self.regBitSize(dst_ty)), }); - try self.genBinOpMir(.bsf, src_ty, dst_mcv, mat_src_mcv); + try self.genBinOpMir(.bsr, src_ty, dst_mcv, mat_src_mcv); const cmov_abi_size = @max(@intCast(u32, dst_ty.abiSize(self.target.*)), 2); try self.asmCmovccRegisterRegister( |